摘要
对6061铝合金、S45C碳钢、SS316不锈钢、SS304不锈钢和黄铜五种金属材料进行了仪器化压入测试,采用纯能量法和Oliver-Pharr方法计算得到各材料的弹性模量,并与标准单轴拉伸试验结果进行了对比。结果表明:采用纯能量法得到的五种金属弹性模量与拉伸试验结果的相对误差分别为7.65%,3.99%,3.25%,-1.12%和16.47%,比Oliver-Pharr方法具有更高的测试精度,可满足金属材料弹性模量测试的工程应用要求。
Instrumented indentation tests were applied to five metals, 6061 aluminum alloy, S45C carbon steel,SS316 stainless steel, SS3O4 stainless steel and brass, and then the elastic modulus of five metals were calculated by Energy-based method and and Oliver-Pharr method. The calculated results by two method were compared to that from standard uniaxial tensile test. The results show that the relative errors of elastic modulus between Energy-based method and tensile test were 7.65%, 3.99%, 3.25%, -- 1.12% and 16.47%, respectively. Compared with the Oliver-Pharr method, Energy-based method possessed higher precision and were better enough to satisfy the need of engineering application.
出处
《机械工程材料》
CAS
CSCD
北大核心
2015年第8期47-50,共4页
Materials For Mechanical Engineering
关键词
仪器化压入
弹性模量
测试精度
金属材料
instrumented indentation elastic modulus
measurement precision
metal material
