论文摘要
选用单一Vickers压头对被测材料实施压痕具有特殊位置关系的三次仪器化压入实验,根据第三次载荷-位移曲线和初次载荷-位移曲线提出一个独立的仪器化压入响应参数-第三次和初次仪器化压入比功之比[（We/Wt）3/（We/Wt）1]。基于量纲分析和有限元仿真,建立初次仪器化压入比功（We/Wt）1、第三次和初次仪器化压入比功之比[（We/Wt）3/（We/Wt）1]、初次仪器化压入名义硬度H0与材料弹塑性参数之间的无量纲函数关系,并以此为基础建立了金属材料弹塑性参数仪器化聚集式Vickers压入识别方法。该方法仅利用单一Vickers压头便可识别被测材料的应变硬化指数n、弹性模量E、条件屈服强度σ0.2和强度极限σb,并且通过实验验证了此方法的有效性。
论文目录
文章来源
类型: 期刊论文
作者: 石新正,陈伟,陈平,马德军,孙亮
关键词: 仪器化聚集式压入,金属材料,弹塑性参数
来源: 中国有色金属学报 2019年11期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 金属学及金属工艺
单位: 陆军装甲兵学院车辆工程系,陆军装甲兵学院基础部
分类号: TG115.5
DOI: 10.19476/j.ysxb.1004.0609.2019.11.15
页码: 2582-2593
总页数: 12
文件大小: 1373K
下载量: 26
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标签：仪器化聚集式压入论文; 金属材料论文; 弹塑性参数论文;