黄建娜;王璇;

• 1:河南工业职业技术学院机械工程学院

摘要(Abstract)：

为研究腐蚀损伤对7050铝合金性能的影响,用恒载荷应力环、拉伸试验机、电化学工作站建立拉应力与塑性损失和耐蚀性间的关系。结果表明:随载荷从0提高到400 MPa,强度和塑性下降明显,抗拉强度降幅高达25.5%。腐蚀速率随载荷增大而增大,腐蚀电流密度由3.32×10~(-7)A/cm增至2.12×10~(-6)A/cm,且腐蚀后合金表面点蚀坑与裂纹增多,在拉伸断口边缘由韧窝向解离面转变。

关键词(KeyWords)： 7050铝合金;恒载荷;腐蚀

Abstract:

Keywords:

基金项目(Foundation): 河南省高等学校青年骨干教师培养计划项目(2017GGJS231)

作者(Author): 黄建娜;王璇;

Email:

DOI: 10.14024/j.cnki.1004-244x.20200911.002

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