Effects of Pressure Field on Structure and Properties of Lost Foam Casting ZL101 Alloy

Tang Bo; Fan Zitian; Zhao Zhong; Pan Di; Cheng Ping

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Effects of Pressure Field on Structure and Properties of Lost Foam Casting ZL101 Alloy
Vol. 29, Issue 7, Pages: 638-641(2009)
Published： 2009 ，
DOI：

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[1]唐波,樊自田,赵忠,潘迪,成平.压力场对ZL101铝合金消失模铸造性能的影响[J].特种铸造及有色合金,2009,29(07):638-641+585.

Tang Bo, Fan Zitian, Zhao Zhong, et al. Effects of Pressure Field on Structure and Properties of Lost Foam Casting ZL101 Alloy. [J]. Special Casting & Nonferrous Alloys 29(7):638-641(2009)
[1]唐波,樊自田,赵忠,潘迪,成平.压力场对ZL101铝合金消失模铸造性能的影响[J].特种铸造及有色合金,2009,29(07):638-641+585. DOI：

Tang Bo, Fan Zitian, Zhao Zhong, et al. Effects of Pressure Field on Structure and Properties of Lost Foam Casting ZL101 Alloy. [J]. Special Casting & Nonferrous Alloys 29(7):638-641(2009) DOI：

摘要

采用自行研制的压力凝固试验装置

研究了ZL101铝合金消失模铸造过程中

不同的压力和加压速率对铸件性能的影响。试验结果表明

随着外加压力的增加

铸件的密度和力学性能逐步提高

孔隙率显著降低

当外加压力达到0.5MPa以上时

ZL101消失模铸件的力学性能提高趋缓;加压时

不同的加压速率对消失模铸件的密度及性能影响很大

当加压速率为0.003～0.030MPa/s时

铝合金消失模铸件性能较好;由于在压力下凝固

ZL101铝合金消失模铸件针孔等缺陷减少、密度提高

铸件耐腐蚀性进一步提高。

Abstract

We have developed a set of pressurization solidification experimental apparatus to examine the effects of varied pressures and pressurization rate on mechanical properties of lost foam casting ZL101 aluminum alloy components. The results show that with increasing in applied pressure

the density and mechanical properties of the lost foam casting ZL101 alloy components are improved gradually

and porosity rate in the castings is greatly decreased

meanwhile

the mechanical properties of the castings exhibit slightly increasing tendency. With a fixed pressure

the density and properties of the casting are closely related to the pressurization rates. The lost foam casting ZL101 alloy components exhibit desirable performance at pressurization rate of 0.003 MPa

.03 MPa. In addition

corrosion resistance of the alloy components is further improved as a result of the increase of density and decrease of pin-hole defects in the components at pressurization solidification.