Effects of Processing Parameters on Microstructure and Mechanical Properties of Die Casting AZ91-RE Alloy

Su Zaijun; Yang Shuzhong; Pu Jian; Deng Weike; Yuan Ming

doi:10.15980/j.tzzz.2018.04.003

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Effects of Processing Parameters on Microstructure and Mechanical Properties of Die Casting AZ91-RE Alloy
Vol. 38, Issue 4, Pages: 356-358(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.04.003

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[1]苏再军,杨树忠,普健,邓维克,袁明.工艺参数对压铸AZ91-RE合金组织及性能的影响[J].特种铸造及有色合金,2018,38(04):356-358.

Su Zaijun, Yang Shuzhong, Pu Jian, et al. Effects of Processing Parameters on Microstructure and Mechanical Properties of Die Casting AZ91-RE Alloy. [J]. Special Casting & Nonferrous Alloys 38(4):356-358(2018)
[1]苏再军,杨树忠,普健,邓维克,袁明.工艺参数对压铸AZ91-RE合金组织及性能的影响[J].特种铸造及有色合金,2018,38(04):356-358. DOI： 10.15980/j.tzzz.2018.04.003.

Su Zaijun, Yang Shuzhong, Pu Jian, et al. Effects of Processing Parameters on Microstructure and Mechanical Properties of Die Casting AZ91-RE Alloy. [J]. Special Casting & Nonferrous Alloys 38(4):356-358(2018) DOI： 10.15980/j.tzzz.2018.04.003.

摘要

采用正交试验

研究了压铸温度、模具温度和压射速度等工艺参数对高强耐热压铸AZ91-0.5Nd-0.3Y-0.3La合金显微组织与力学性能的影响。结果表明

压铸工艺参数对合金力学性能的影响由大到小依次为:压铸温度、模具温度和压射速度。最佳压铸工艺方案:压铸温度为685℃

模具温度为240℃

压射速度为4.0m/s。在此压铸工艺参数下

合金的抗拉强度、屈服强度、伸长率分别达到292 MPa、186 MPa、9.7%。

Abstract

The effects of die casting processing parameters

such as pouring temperature

mold temperature and injection speed

on microstructure and mechanical properties of AZ91-0.5 Nd-0.3 Y-0.3 La alloy were investigated based on orthogonal experiment.The results show that the order of important factor is followed as:pouring temperature

mold temperature and injection velocity.The optimized die casting process parameters of alloy are presented as:pouring temperature of 685 ℃

mold temperature of 240℃ and injection velocity of 4.0 m/s

where the ultimate tensile strength

yield strength and elongation reach 292 MPa、186 MPa and 9.7%

respectively.