连续球压痕测定常用叶轮材料力学性能的研究  

Research on the Measurement of Mechanical Properties of Common Impeller Materials through Continuous Ball Indentation Test

作　　者：苏成功[1,2,3] 王威强[1,2,3] 商显栋 张泰瑞 李剑锋[1,5] 

机构地区：[1]山东大学,山东济南250061 [2]山东省特种设备安全工程技术研究中心,山东济南250061 [3]山东大学特种设备安全保障与评价研究中心,山东济南250061 [4]山东省特种设备检验研究院,山东济南250101 [5]高效洁净机械制造教育部重点实验室,山东济南250061

出　　处：《流体机械》2015年第2期7-12,共6页Fluid Machinery

基　　金：国家重点基础研究发展(973)计划项目(2011CB013401);国家自然科学基金项目(51475269)

摘　　要：分析了连续球压痕法测试材料力学性能的原理,并以不同状态的压缩机叶轮常用钢材FV520B和KMN为对象,采用连续球压痕试验与常规拉伸试验相结合的方法,测定了材料抗拉强度和屈服强度等力学性能。总结出了连续球压痕测量FV520B和KMN屈服强度的拟合方程。论证了连续球压痕试验测定再制造修复后叶轮力学性能的可行性。The authors analyzed the principle of testing the mechanical properties of material bycontinuous ball indentation method,and the common material FV520 B and KMN with different statesused in compressor impeller were chosen to be tested,using continuous ball indentation method and conventional tensile testing method to determine the mechanical properties such as tensile strength and yield strength. The author summed up thefitting equation ofyield strength measured by continuous ball indentation method of FV520 B and KMN. And the feasibility of testing the remanufactured impeller mechanical properties isdemonstrated by continuous ball indentation method.

关 键 词：连续球压痕 力学性能 无损测试 叶轮材料 

分 类 号：TH452[机械工程—机械制造及自动化]