最新刊期
卷 31 ， 期 3 ， 2011
- 摘要：Semi-solid slurry was prepared by an efficient and energy-saving technology that is superheat pouring and slightly electromagnetic stirring（LSPSES）.Effects of the key processing parameters on the slurry were investigated.The results indicate that slurry meeted rheo-forming requirements can be prepared sucessfully by LSPSES.Morphology and size of primary α-Al phase in the semi-solid slurry are closely related with pouring temperature and stirring power.Through the proper weak electromagnetic stirring,pouring temperature of melt can be suitable raised to realize the high efficient and energy-saving.关键词：Semisolid;Low Superheat Pouring;Slightly Electromagnetic Stirring;A356 Al Alloy
- 2
- |
- 183
- |
- 5
发布时间：2023-12-18 - 摘要：Compression behavior and fracture morphology of AlCoCrCuFeNix high entropy alloy were investigated by compressive testing and SEM （scanning electron microscope） observation. The results show that both yield strength and compression strength of the alloy are firstly increased and then decreased, and AlCoCrCuFeNi alloy exhibits desirable comprehensive performance. With increasing in Ni content, fracture morphology is evolved from cleavage fracture to quasi-cleavage one and then to ductile one, meanwhile, the alloy is transformed from brittle into ductile ones.关键词：High Entropy Alloy;Compressive Behavior;Fracture
- 2
- |
- 776
- |
- 6
发布时间：2023-12-18 - 摘要：Effects of annealing treatment on recovery stress of NiTi shape memory alloy were analyzed by tensile testing, recovery stress testing and TEM （transmission electron microscope）. The results show that recovery stress reaches the maximum value with pre-strain of 12%. With increasing in annealing temperature, the recovery stress is decreased. Yield strength of the NiTi shape memory alloy is closely dependent on the recovery stress. With increasing in yield strength, recovery stress is increased as a result of the increase of phase interface migrant stress during the martensite reverse transformation process.关键词：NiTi Alloy;Shape Memory Alloy;Recovery Stress;Yield Strength
- 2
- |
- 284
- |
- 4
发布时间：2023-12-18 - 摘要：<正>作为宁国三大传统支柱产业之一,耐磨铸件行业积聚近120家企业,15亿元的资产规模,从业人员近万人,年产能80万吨,但受外部宏观环境和产
- 2
- |
- 39
- |
- 0
发布时间：2023-12-18 - 摘要：<正>中国铸造协会在南京召开的2011中国铸造零部件展览推介会上指出,我国正着手推进铸造业整合和落后产能淘汰,到2015年,铸造企业将从目前的3万余家缩减到2万家左右。
- 2
- |
- 44
- |
- 0
发布时间：2023-12-18 - 摘要：<正>吉林省镁产业技术创新战略联盟近日在白山市成立,为吉林省镁产业发展提供了产学研结合的纽带和载体。
- 2
- |
- 43
- |
- 0
发布时间：2023-12-18 - 摘要：<正>有"中国铸造之乡"美誉的泊头市已正式实施《铸造行业达标条件暂行规定》,以加快推动传统铸造业发展,实现从铸件到部件再到生产整机的突破。
- 2
- |
- 32
- |
- 0
发布时间：2023-12-18 - 摘要：<正>从传统铸造业企业到生产特殊功能纳米材料、特种冶金及铸造领域高端机械装备产品,坐落于静海县良王庄乡的天津市立鑫晟精细铸造有限公司依靠源源不断的科技研发支撑,为未来发展闯出一片广阔的天空。据
- 2
- |
- 23
- |
- 0
发布时间：2023-12-18 - 摘要：NbC reinforced Ni-based composite coating was fabricated on the surface of Q345 steel by means of argon arc cladding technique with powder of C, Nb and Ni60A. Microstructure and phase constituent of the coating were observed by SEM （scanning electron microscope） and XRD （X-ray diffraction）, meanwhile, micro-hardness and ambient wear resistance of the coating were measured. It is found that absence of gas hole and crack in interface of composite coating with the matrix can be observed, exhibiting desirable metallurgical bonding. Microstructure of the composite coating is composed of γ-Ni, Cr23C6 and NbC. Micro-hardness of the composite coating reaches up to 1000, increased by approximately three times compared with that of the matrix alloy, and wear resistance is increased by approximately 11 times compared with the matrix.关键词：Argon Arc Cladding;Composite Coating;NbC Particle;Wear Resistance
- 2
- |
- 164
- |
- 4
发布时间：2023-12-18 - 摘要：Hot deformation behavior of as-extruded AZ81 magnesium alloy was investigated by compressive testing with the Gleeble-1500D thermal simulator at 320～440 ℃ and strain rate of 0.001～1s-1 with 60% deformation degree. The flow behavior can be described by the hyperbolic sine constitutive equation, and average activation energy reaches 182.17kJ/mol, higher than the activation energy for self-diffusion. The processing maps were calculated and analyzed according to the dynamic materials model. Combined with microstructure observation, process of hot deformation of as-extruded AZ81 magnesium alloy was analyzed. In conditions of 320～440℃ and strain rate of 0.001～1s-1 with 60% deformation degree, when instability criterion is more than zero, AZ81 magnesium alloy exhibits desirable hot deformation performance. Based on the processing maps, the optimized processing parameters range during hot deformation process were presented in the experimental parameters range, where hot deformation temperature was 380～400℃ and strain rate was 0.01～0.1s-1.关键词：As-extruded AZ81 Magnesium Alloy;Flow Stress;Processing Maps;Hot Deformation
- 2
- |
- 242
- |
- 5
发布时间：2023-12-18 - 摘要：Effects of solid solution treatment on semi-solid microstructure of AM60B magnesium alloy were investigated by OM （optical microscope）, XRD （X-ray diffraction）. The results show that semi-solid structure with fine and uniform spherical primary phase can be observed in AM60B magnesium alloy billets which were treated for 16 hours at 415℃ and then partially remelted at 610℃. The β-Mg17Al12 phase is completely dissolved in the α-Mg matrix with solid solution treatment for 16 hours at 415℃. Remelting of coarsened dendrite from solid solution treatment results in the separation of structure in the semi-solid alloy with isothermal treatment at 610℃, which is responsible for the formation of desirable semi-solid slurry structure.关键词：Solid Solution;AM60B Magnesium Alloy;Semi-solid;Microstructure
- 2
- |
- 273
- |
- 3
发布时间：2023-12-18 - 摘要：Optimization of gating system for steering pump shell based on the Anycasting software was conducted. Filling and solidification field of different pouring systems at different pouring temperatures were simulated and predicted by the software. With the help of post-processing module, probability and distribution of defects during pouring process were visualized. Through comparing different gating systems, optimized gating system was presented for practical production.关键词：Steering Pump Shell;Gating System Optimization;AnyCasting Software
- 2
- |
- 256
- |
- 2
发布时间：2023-12-18 - 摘要：<正>第69届世界铸造会议是继61届世界铸造会议召开15年后在中国举行的第二次世界铸造会议,是一次受到国内外高度评价的成功会议。会议共录用了27个
- 2
- |
- 87
- |
- 0
发布时间：2023-12-18 -
Application and Development of Vacuum Valve and Vacuum Control Equipment for High Vacuum Die Casting
摘要：We have developed key techniques including vacuum valve and its control equipment for high vacuum die casting. The running principle of the vacuum valve is that exhausting channel is closed by a level arm driven by liquid pressure in the valve. Vacuum control apparatus uses PLC and touch screen technology to make sure reliable working state of valve. The vacuum die casting technology has been used for producing car chassis part, transmission box and 3G housing, and desirable effects are achieved.关键词：Vacuum Valve;Vacuum Die Casting;Vacuum Control Apparatus;PLC- 2
- |
- 342
- |
- 8
发布时间：2023-12-18 - 摘要：Based on mathematical principle and low pressure casting principle, when function relation between mould wall thickness and wheel wall thickness is δth=32λcλw, liquid metal can obtain the maximum temperature gradient on the mould surface. When δth is 1.8～2.2 at hot spot of low pressure casting aluminum alloy wheel, it is beneficial for rim feeding and solidification of hot spot, which is effectively verified by practical production and FEM analysis.关键词：Low Pressure Casting;Aluminum Alloy Wheel;Temperature Gradient;Wheel and Mould Wall Thickness
- 2
- |
- 396
- |
- 3
发布时间：2023-12-18 - 摘要：Vacuum-assisted local supplement pressure technology was used to produce back wheel hub of magnesium alloy motorcycles. The mould was poured tangentially via the rim edges of the wheel with collected-residual alloy at center, effectively eliminating the inclusion and shrinkage hole （porosity） in hot spot in the wheel. Design of vacuum system and vacuum process could prevent oxidation and air entrapment, and the vacuum degree in the mould cavity could reach 2.9kPa. Local supplement pressure could avoid the formation of shrinkage hole resulted from different solidification rate from center of wheel hub to their edge. Meanwhile, some defects easily occurred in magnesium alloy production, such as cold shut, shrinkage hole, crack, inclusion, and deformation, were analyzed, and countermeasures were presented. Practical production verified that vacuum-assisted local supplement pressure could obtain desirable magnesium alloy wheel.关键词：Magnesium Alloy;Wheel;Vacuum Die Casting;Local Supplement Pressure
- 2
- |
- 174
- |
- 2
发布时间：2023-12-18 - 摘要：Filling and solidification process of die casting 6063 aluminum bracket were simulated by the ProCAST software to obtain the distribution and change of velocity and temperature field. The results indicate that the factors influencing filling process are as follows in sequence: pouring temperature, pre-heating temperature of mould, filling velocity. The desirable aluminum alloy bracket was successfully produced with pouring temperature at 600℃ and pre-heating temperature of mould at 200℃ as well as filling velocity at 2.5 m/s.关键词：Bracket;Die Casting Die;Numerical Simulation
- 2
- |
- 255
- |
- 4
发布时间：2023-12-18 - 摘要：In accordance with the characteristics of thin wall, large wrapping area and structure complexity, the side gate feeding, a mechanism with a angle pin and a side for side core pushing were adopted in castings. There were 8 overflow wells in the mould, and overflow well with maximum capacity was set on the molding slide, resolving the mould release.关键词：Side Gate;Molding Slides;Side Parting;Overflow Well
- 2
- |
- 57
- |
- 1
发布时间：2023-12-18 - 摘要：6063 aluminum alloy sheet with size in 3～4 mm was manufactured by indirectional squeezing casting with two-cavity in one-mold. A squeezing casting mould was designed to ensure the smooth filling of liquid metal in indirectional squeezing casting. Design of the mould was conducted.关键词：Indirectional Squeezing Casting;Sheet;Mould Design
- 4
- |
- 167
- |
- 2
发布时间：2023-12-18 - 摘要：Purpose and operation key notes of trialed-mould of die casting die were described briefly. Effects of processing parameters on quality of the castings and principle of parameter adjustment were approached. Defects in die casting trialed-parts were analyzed, and countermeasures were presented.关键词：Die Casting Die;Trialed-mould;Processing Parameters Adjustment;Defects Analysis
- 2
- |
- 119
- |
- 0
发布时间：2023-12-18 - 摘要：Using digital quantitative image analysis system, effects of variation of equivalent area diameter and average area fraction of primary Si phase in different positions and Si particle diameters in super slow speed die casting hypereutectic Al-Si alloy on tensile strength and hardness of the alloy were investigated. The results reveal that with increasing in wall thickness, equivalent area diameter and equivalent area fraction of primary Si phase are increased. In addition, with increasing in equivalent area diameter, mechanical properties of the die casting hypereutectic Al-Si alloy is obviously improved.关键词：Hypereutectic Al-Si Alloy;Super Low Speed Die Casting;Microstructure;Mechanical Properties
- 2
- |
- 174
- |
- 1
发布时间：2023-12-18 - 摘要：<正>日本镁协会长、日本金属株式会社会长相良达一郎,于2011年3月14发来电函,对中国同业及朋友对此次日本地震各界的关心和慰问,表示深切的感激:
- 4
- |
- 26
- |
- 0
发布时间：2023-12-18 - 摘要：<正>美国铸造协会（简称AFS）与位于美国华盛顿特区的全国工业砂协会（简称NISA）于近期探索建立一家新的技术研究联合机构,主要致力于研究
- 2
- |
- 16
- |
- 0
发布时间：2023-12-18 - 摘要：<正>2011年GIFA展会组展商与其合作单位于近期宣布今年为期4天的德国杜塞尔多夫GIFA展将极力推出节约能源与自然资源节约的主题。打
- 2
- |
- 34
- |
- 0
发布时间：2023-12-18 - 摘要：The slag inclusion and gas hole defects were generated easily in EPC steel castings. The source, shape distribution and position where slag inclusion easily occur were analyzed. According to the filling behavior of molten steel, influence of the turbulent flow and wall attachment effects of filling molten steel on formation of slag inclusion were approached. Based on the thermodynamics and kinetics, the forming and floating mechanism of the slag inclusion in EPC steel castings were described. The approaches and ways of eliminating slag inclusion in EPC steel castings were presented.关键词：EPC Steel Casting;Slag Inclusion;Forming and Discharging Mechanism
- 2
- |
- 295
- |
- 2
发布时间：2023-12-18 - 摘要：To effectively control the morphology of TiAl3 compound particle in microstructure of Al-Ti-B wire, effects of different electromagnetic stirring time and temperature on the size, shape and distribution of TiAl3 phase during electromagnetic stirring and CASTEX deformation of Al-Ti-B melt were investigated by OM （optical microscope）, SEM （scanning electron microscope） and XRD （X-ray diffraction）. The results show that with increasing in electromagnetic stirring time, the conglomeration of TiAl3 phase disappears, and particles are broken and refined with uniform distribution. Desirable refining effects can be observed at 300 min. Stirring temperature directly control the viscous force. With increasing in temperature, aggregating band of TiAl3 phase disappears with the improvement of particle distribution. Desirable electromagnetic stirring temperature is 800℃.关键词：Al-Ti-B Wire;TiAl3 Particle;Electromagnetic Stirring;Microstructure
- 2
- |
- 190
- |
- 4
发布时间：2023-12-18 - 摘要：Developing present status of investment casting industry at home was reviewed. It was reported that the investment casting industry at home was in the road of resuscitation. It was pointed out that the high value-added and profit product was the developing future. Technologies and ways playing investment casting advantages were presented. From the view point of improving investment casting trade, it plays the role in co-research and improving human resource.关键词：Investment Casting;Product;Challenge and Countermeasures
- 2
- |
- 542
- |
- 2
发布时间：2023-12-18 - 摘要：<正>精铸件质量控制主要由浇冒口设计、蜡模制作、制壳工艺、熔炼与整理工序组成。其中熔炼十分重要,它涉及到铸件的力学性能、补焊率和成品率等。
- 2
- |
- 117
- |
- 0
发布时间：2023-12-18 - 摘要：La0.6R0.2Mg0.2（NiCoAlMn）3.3 hydrogen storage alloys were prepared by induction melting and then treated by annealing process, and effects of rare earth R （R is La, Ce, Pr, Nd and Y） substituted for La on the structure and electro-chemical properties were investigated by XRD （X-ray diffraction） and EPMA. The results reveal that the La0.6R0.2Mg0.2（NiCoAlMn）3.3 hydrogen storage alloys consist of CaCu5-type phase as matrix and Ce2Ni7 and PuNi3-type as secondary phase. Addition of Ce, Pr, Nd is not changed the phase constituent of the alloy. However, CaCu5-type phase is decreased and Ce2Ni7-type phase is increased obviously with Y addition, and phase abundance of Ce2Ni7-type phase reaches 79.03%, meanwhile, Y addition can lead to the disappearance of Gd2Co7-type phase. Electrochemical measurements show that activation performance of the alloy is slightly affected by the Ce, Pr, Nd and Y element, however, maximum discharge capacities of the alloy are improved to some extent with Pr, Nd, Y substituted for La partially, in which maximum discharge capacity reaches up to 392.6 mAg/g with Y. In addition, cyclic stability of the alloys with Y substituted for La is increased obviously, increased by 90.3%.关键词：La-R-Mg-Ni Based Hydrogen Storage Alloy;Microstructure;Electrochemical Property
- 2
- |
- 137
- |
- 1
发布时间：2023-12-18 - 摘要：Effects of minor B and Y as well as cooling rate on compound refinement of microstructure of Ti+47Al-2Cr-2Nb alloy were investigated. The results show that in the condition of smelting with the water-cooled copper crucible vacuum induction skull furnace and investment casting with Y2O3 shell mold, grain size of Ti-47Al-2Cr-2Nb castings is greatly refined with B addition, where coarse columnar grain is converted into fine equaixed one, however, refining effects on lamellar spacing are absent. B and Y compound refinement can not only further effectively refine grain size, but also significantly refine the lamellar spacing. Macro-structure of Ti-47Al-2Cr-2Nb-0.8B-0.3Y alloy castings exhibits equiaxed grain with different thickness from 2 mm to 20 mm, meanwhile, with increasing in thickness of the castings, equiaxed grain size is gradually coarsened. It is beneficial for obtaining fine lamellar structure with proper decrease of pre-heating temperature of mold shell.关键词：TiAl Alloy;Grain Size;B;Y;Cooling Rate
- 2
- |
- 195
- |
- 1
发布时间：2023-12-18 - 摘要：In-situ TiB2 particles reinforced Al-4.5Cu alloy composites were synthesized successfully by the reaction of halide salts of KBF4 and K2TiF6 with aluminum melt. Solidification structure and solid solution-aging behavior of the composites were investigated by XRD （X-ray diffraction）, SEM （scanning electron microscope） and Vickers hardness tester. The results show that with the addition of TiB2 particles, solidification structure of the composites is refined apparently with the great increase of hardness. TiB2 particles accelerate the aging process in the Al-4.5Cu alloy, which is attributed to the fact that vacancy and high density dislocation generate from thermal mismatch as a result of great thermal expansion coefficient difference between the TiB2 particles and the Al matrix promote nucleation and growth of the transition phase.关键词：TiB2 Phase;Composites;Solid Solution and Aging;Dislocation
- 2
- |
- 126
- |
- 1
发布时间：2023-12-18 - 摘要：Magnesium matrix composites reinforced with 4% and 8% （in volumetric fraction） Al3Ti particles were fabricated by melt casting process. Microstructure, phase constituent, relative density, hardness and wear resistance of the composites were investigated. The results reveal that dense structure in the composites can be observed, and in-situ fine and spherical Al3Ti phase is uniformly distributed into the matrix alloy with the compact bonding. With increasing in volumetric fraction of Al3Ti phase, relative density is decreased and hardness is increased in the composites, however, wear resistance of the composites is slightly deteriorated. In addition, hardness and wear resistance of the Al3Tip/AZ91D composites are superior to those of the AZ91D alloy.关键词：Magnesium Matrix Composites;Melt Casting Process;Microstructure;Al3Ti Particle
- 2
- |
- 101
- |
- 0
发布时间：2023-12-18 - 摘要：SiO2-ZrO2 sol-gel film was prepared on magnesium alloy AZ91D by sol-gel technique, and effects of drying and curing process on corrosion resistance of sol-gel film were investigated to determine the optimized deposition process of the SiO2-ZrO2 sol-gel film on magnesium alloy. Corrosion resistance of the sol-gel film was evaluated by total immersion testing and electrochemistry in a 3.5% NaCl solution. The results indicate that sol-gel film exhibits acceptable protection effects on the magnesium alloy substrate with drying for 9 hours at 80℃ and curing for 1 hours at 250℃, improving the corrosion resistance of the magnesium alloy.关键词：Magnesium Alloy;SiO2-ZrO2;Sol-gel;Deposition Process;Corrosion Resistance
- 2
- |
- 324
- |
- 3
发布时间：2023-12-18 - 摘要：Microstructure evolution of spray-formed Mg-4Al-3Ca-1.5Zn alloy was observed by SEM （scanning electron microscope） and TEM （transmission electron microscope）. The results reveal that strengthening phase in permanent mold casting alloy is precipitated along grain boundary, which is composed of C36\[（Mg,Al）2Ca\] and C14 phase （Mg2Ca）. Uniformly distributed microstructure in spray-formed alloy can be observed, and strengthening phase is composed of C15 （Al2Ca） and C36 phases, in which rod or particle C15 phases are distributed into C36 matrix. Metastable C36 phase can be transformed into C15 phase after heeting treatment at high temperature. Dynamic recrystallization occurs in the alloy during hot extrusion process, and C36 phase is precipitated along grain boundaries.关键词：Magnesium Alloy;Spray-forming;Strengthening Phase;Hot Extrusion;Microstructure
- 2
- |
- 107
- |
- 3
发布时间：2023-12-18 - 摘要：Effects of electromagnetic stirring on microstructure of Bi-containing hypereutectic Al-Si alloy were observed by OM （optical microscope） and SEM （scanning electron microscope）, and effect mechanism of electromagnetic stirring and Bi phase was analyzed. The results show that primary Si phase is greatly decreased in the presence of a little fine bulky phase, and acicular eutectic Si phase is increased with the occurrence of primary α-Al dendrite phase in electromagnetic stirred Bi-containing hypereutectic Al-Si alloy. With increasing in stirring velocity, morphology of eutectic Si phase is transformed from coarse acicular structure to fine acicular one to coarse acicular one. Meanwhile, segregation of Bi in the alloy can be obviously improved by electromagnetic stirring. With increasing in stirring velocity, distribution morphology of the Bi in the alloy is converted from bulky structure to short-rod one to spherical one to fine spherical one, tending to uniform distribution.关键词：Hypereutectic Al-Si Alloy;Bi;Electromagnetic Stirring;Microstructure
- 2
- |
- 120
- |
- 1
发布时间：2023-12-18 - 摘要：The morphological linear stability and non-linear stability of solid-liquid interface of Al-Zn dilute binary alloy were investigated by thermodynamics method. Different stable regions between linear-stability and nonlinear stability of solid-liquid interface were approached, which was calculated by the thermo-dynamic method and the linear binary parameter method, respectively. Interface morphology evolution after solid-liquid interface instability was analyzed, and sub-critical bifurcation range of solid-liquid interface was presented. The results reveal that the calculated results by coupling with thermo-dynamics method are more well in agreement with the experimental ones. Instable region calculated by the method is more than that by linear binary parameters, especially under linear-stability.关键词：Thermodynamics Method;Binary Alloy;Morphological Stability;Sub-critical Bifurcation
- 2
- |
- 140
- |
- 2
发布时间：2023-12-18 - 摘要：Growth of intermetallic compound of interface and tensile strength of Cu/Sn-3Ag-0.5Cu/Cu butting solder joints with aging treatment at 100, 125, 150 ℃ were investigated by SEM （scanning electron microscope）, EDS (energy dispersive spectrometer and mechanical testing. Fracture morphology and fracture mode of the solder joint were evaluated. The results show that with increasing in aging time, thickness of interfacial IMC is increased, and its growth dynamics is accordant with parabolic law. The growth rate is accelerated with increasing in aging temperature, and activation energy reaches 90 kJ/mol. In addition, with increasing in aging time, tensile strength of the solder joint is decreased, and the fracture mechanism is transformed from pure shearing mode to micro-void accumulation one.关键词：Sn-Ag-Cu Lead Free Solder Joint;Aging;Interfacial IMC;Tensile Strength;Fracture
- 2
- |
- 201
- |
- 4
发布时间：2023-12-18 - 摘要：Effects of ultrasonic vibration on solidification structure of Zn-55Al-1.6Si alloy were investigated. The results show that solidification structure of the alloy is apparently changed after ultrasonic treatment. With increasing in ultrasonic power, primary α phase is converted from coarse dendrite into fine and round rosette one. However, when ultrasonic power exceeds 200 W, with increasing in power, refining effects can be ignored. At a given ultrasonic power, solidification structure is also related with ultrasonic temperature. When vibration-stop temperature is below liquidus temperature, primary α phase is transformed into isotropic rosette and near spherical structure. Furthermore, the lower the vibration-stop temperature is, the finer the structure is. Coarse dendritic α-Al phase is transformed into fine spherical one with ultrasonic power of approximately 200W at 540～620℃.关键词：Zn-Al Alloy;Solidification Structure;Vibration Refinement;Ultrasonic Vibration
- 2
- |
- 173
- |
- 2
发布时间：2023-12-18 - 摘要：Effects of different Sn additions on microstructure and mechanical properties of free-cutting Bi brass were investigated by Philips-XL30 SEM （scanning electron microscope） and HY-1080 electron tensile testing machine, and the cutting performance of the alloy was examined by C6136 horizontal lathe. The results show that Sn can effectively improve the property of the alloy by changing the distribution of Bi distribution to make Bi to move from the phase boundary into the α phase. However, when Sn content exceeds 2%, CuZnSn phase , a brittle electron compound, can be created in the alloy, resulting in the deterioration of mechanical properties. The cutting performance of the alloy is improved with increasing in Sn content.关键词：Free-cutting;Bi Brass;Microstructure;Mechanical Properties
- 2
- |
- 109
- |
- 2
发布时间：2023-12-18 - 摘要：Thermodynamic free energy of forming Cu2Mg phase in Cu-Zn-Mg alloy during melting casting process was calculated. The results reveal that the Gibbs free energy of forming Cu2Mg phase is lower than that of forming MgZn2 and CuMg2 phase between reaction of Cu and Mg in Cu60Zn37.64Mg2.36 alloy, leading to the easier creation of Cu2Mg phase. The experimental results are well in agreement with calculated ones.关键词：Cu-Zn-Mg Alloy;Cu2Mg Phase;Thermodynamics
- 2
- |
- 139
- |
- 4
发布时间：2023-12-18 - 摘要：<正>五台山铜塔（见下页）明万历年铸铸铜高8m现存于山西五台山显通寺五台山为中国佛教四大名山之一,是文殊菩萨的道场。五台山现存多处著名寺院、其中的显通寺以保存有明代铸造的铜殿和铜塔闻名于世。
- 2
- |
- 145
- |
- 0
发布时间：2023-12-18 - 摘要：<正>《特种铸造及有色合金》杂志是对国内外公开发行的中文核心期刊。为保证期刊的高水平和高质量,特对稿件提出如下要求:1.总体要求文章要遵循"科学性、先进性、实用性"的原则,做到主
- 3
- |
- 40
- |
- 0
发布时间：2023-12-18
- Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19
京公网安备11010802024621 - It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
- Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
0