首页|锻造工艺对汽车减速器壳体用镁合金性能的影响

锻造工艺对汽车减速器壳体用镁合金性能的影响

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以纯镁为基材,Sn 和Pb 为改性元素,制备了汽车减速器壳体用镁合金样品.研究了锻造工艺对镁合金组织和力学性能的影响.结果表明:在变形量为35％和锻造温度为300 ℃时,镁合金能够获得最佳的性能:抗拉强度为 146.2 MPa,屈服强度为122.5 MPa,伸长率为6.12％.经过锻造后的镁合金样品,通过焊合气孔缺陷、细晶强化以及添加 Sn、Pb 元素后的弥散强化作用使得样品力学性能较铸态镁合金样品有较大提高.
Effect of Forging Process on Properties of Magnesium Alloy for Automobile Reducer Shell
Taking pure magnesium as matrix, Sn and Pb as modified element, the samples of magnesium alloy for automobile reducer shell were prepared. The influences of forging process on microstructure and mechanical properties of magnesium alloy were studied. The results show that when deformation is 35％ and forging temperature is 300 ℃, the magnesium alloy can achieve the best performance: the tensile strength is 146.2 MPa, yield strength is 122.5 MPa, and elongation is 6.12％. The mechanical properties of magnesium alloy samples after forging through welding porosity, fine grain strengthening and the dispersion strengthening effect by adding Sn and Pb elementare greatly improved compared with as cast magnesium alloy samples.

magnesium alloyreducer shellforging processmechanical propertiesmicrostructure

兰新武、岳大军

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湖南汽车工程职业学院, 湖南 株洲 412001

湖南农业大学 汽车学院, 湖南 长沙 410000

镁合金 减速器壳体 锻造工艺 力学性能 显微结构

湖南省职业教育与成人教育学会课题

XHB2015022

2017

10.14158/j.cnki.1001-3814.2017.03.039

热加工工艺
中国船舶重工集团公司热加工工艺研究所 中国造船工程学会船舶材料学术委员会

热加工工艺

CSTPCDCSCD北大核心
影响因子：0.55
ISSN：1001-3814
年,卷(期)：2017.46(3)
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