T6处理对ZK61M镁合金腐蚀性能的影响
Effects of T6 Treatment on Corrosion Properties of ZK61M Magnesium Alloy
- 2024年44卷第3期 页码:377-381
纸质出版日期: 2024-03-20
DOI: 10.15980/j.tzzz.2024.03.016
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纸质出版日期: 2024-03-20 ,
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付广艳,薛丰,张行,等. T6处理对ZK61M镁合金腐蚀性能的影响[J]. 特种铸造及有色合金,2024,44(3):377-381.
FU G Y,XUE F,ZHANG H,et al. Effects of T6 treatment on corrosion properties of ZK61M magnesium alloy[J]. Special Casting & Nonferrous Alloys,2024,44(3):377-381.
将挤压态ZK61M镁合金在450 ℃固溶24 h,然后进行180 ℃,保温4~10 h时效处理。分别采用析氢法、失重法、电化学测试法研究挤压态、固溶态及不同时间时效处理的镁合金的腐蚀性能。利用光学显微镜与扫描电镜对合金组织、腐蚀产物和腐蚀形貌进行观察,并使用能谱和XRD对其进行物相分析。结果表明,固溶及时效处理改变了ZK61M镁合金组织中第二相的大小与分布,进而提升合金的耐腐蚀性能。在时效4 h时合金晶界处析出颗粒状连续分布的第二相,降低了合金的腐蚀速度,合金耐蚀性能最好。随着时效时间延长,合金中第二相数量增加,并出现非均匀分布的块状、条状析出相,使合金的耐蚀性降低。
The extruded ZK61M magnesium alloy was solid soluted at 450 ℃ for 24 h, and then subjected to 180 ℃ aging treatment for 4~10 h. The corrosion properties of magnesium alloys in extrusion, solution and aging state at different time were investigated by hydrogen evolution method, weight loss method and electrochemical test method. The microstructure, corrosion products and corrosion morphology of the alloy were observed by optical microscope and scanning electron microscope, and phase constituent was analyzed by energy spectrum and XRD. The results indicate that the solution and aging treatment can change the size and distribution of the second phase in the structure of ZK61M magnesium alloy, and then improve the corrosion resistance of the alloy. With the alloy aged for 4 h, the continuous distribution of granular second phase is precipitated at the grain boundary of the alloy, which reduces the corrosion rate and presents the desirable corrosion resistance. With the increase of aging time, the number of the second phase in the alloy is increased, and the uneven distribution of massive and strip precipitates appear, which reduce the corrosion resistance of the alloy.
ZK61M时效时间显微组织耐腐蚀性能
ZK61M AlloyAging TimeMicrostructureCorrosion Resistance
ZHOU X, LIU C, GAO Y, et al. Mechanical properties of the Mg-Gd-Y-Zn-Zr alloys with different morphologies of long-period stacking ordered phases[J]. Journal of Materials Engineering and Performance, 2018, 27: 6 237-6 245.
杨清,刘燕平,许瑞高,等.钇基混合稀土对AZ91D镁合金耐腐蚀性及力学性能的影响[J].特种铸造及有色合金,2022,42(9):1 170-1 174.
CHEN B, ZHOU W M, LI S, et al. Hot compression deformation behavior and processing maps of Mg-Gd-Y-Zr alloy[J]. Journal of Materials Engineering and Performance, 2013, 22: 2 458-2 466.
METALNIKOV P, BEN-HAMU G, TEMPLEMAN Y, et al. The relation between Mn additions, microstructure and corrosion behavior of new wrought Mg-5Al alloys[J]. Materials Characterization, 2018, 145: 101-115.
LIU Y, CHENG W L, LIU Y H, et al. Effect of alloyed Ca on the microstructure and corrosion behavior of extruded Mg-Bi-Albased alloys[J]. Mater. Charact., 2020,163:110 292.
WANG S D, XU D K, WANG B J, et al. Influence of phase dissolution and hydrogen absorption on the stress corrosion cracking behavior of Mg-7Gd-5Y-1Nd-0.5 Zr alloy in 3.5% NaCl solution[J]. Corrosion Science, 2018, 142: 185-200.
张帅,李全安,朱宏喜,等.热处理对Mg-11Gd-3Y-0.6Ca-0.5Zr合金显微组织和腐蚀行为的影响[J].材料导报,2020,34(20):20 070-20 075.
庞浩,李全安,陈晓亚,等.热处理对Mg-Gd-Y-Zr稀土镁合金组织、性能和腐蚀行为的影响[J].中国稀土学报,2023, 41(2): 331-339.
彭建,李敏,杨江,等.时效处理对Mg-10Gd-3Y-0.5Zr合金组织和性能的影响[J].金属热处理,2018,43(1):62-66.
CHEN X H, HUANG X W, PAN F S, et al. Effects of heat treatment on microstructure and mechanical properties of ZK60 Mg alloy[J]. Transactions of Nonferrous Metals Society of China, 2011, 21(4): 754-760.
YANG F, LV F, YANG X M, et al. Enhanced very high cycle fatigue performance of extruded Mg-12Gd-3Y-0.5 Zr magnesium alloy[J]. Materials Science and Engineering, 2011, A528(6): 2 231-2 238.
LIU S J, YANG G Y, LUO S F, et al. Microstructure and mechanical properties of sand mold cast Mg-4.58 Zn-2.6 Gd-0.18 Zr magnesium alloy after different heat treatments[J]. Journal of Alloys and Compounds, 2015, 644: 846-853.
武晋翔,张正卫,许春香等.固溶温度对Mg-3Zn-1Mn-1Y合金组织和腐蚀性能的影响[[J].热加工工艺,2023(5): 1-5.
CHEN J, TAN L, YANG K. Effect of heat treatment on mechanical and biodegradable properties of an extruded ZK60 alloy[J]. Bioactive Materials, 2017, 2(1): 19-26.
CAI S,LEI T,LI N,et al. Effects of Zn on microstructure, mechanical properties and corrosion behavior of Mg-Zn alloys[J].Materials Science and Engineering, 2012, C32(8):2 570-2 577.
EKAHI A, RFAN M, HAKOOR A,et al.Effect of loading titanium dioxide on structural, electrical and mechanical properties of polyaniline nanocomposites[J].Journal of Alloys and Compounds, 2015, 651:328-332.
LED T, JEON C J, LEE K W, et al. Characterization of ternary (Ni,Co,Mn)3O4 thin films for microbolometer application[J].Journal of Alloys and Compounds, 2015, 650: 415-420.
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