压痕间距对维氏硬度测量值的影响  

Effect of indentation spacing on measured value of Vickers hardness

作　　者：周思宇 蔡静[1] 张重远[1] 张宏阳 王健[1] 张健[1] ZHOU Siyu;CAI Jing;ZHANG Zhongyuan;ZHANG Hongyang;WANG Jian;ZHANG Jian(Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]中国科学院金属研究所,辽宁沈阳110016

出　　处：《物理测试》2023年第2期26-31,共6页Physics Examination and Testing

摘　　要：维氏硬度试验是静态硬度试验中最为精确的一种试验方法。但是在实际的维氏硬度试验操作过程中,会受到多种因素的干扰从而影响到试验结果。利用全自动维氏硬度试验设备,通过对多个标准片进行多组维氏硬度的平行试验,分析了压痕间距这一变量对测量结果的影响,根据GB/T 4340.1—2009计算试验值的不确定度,压痕间距越大不确定度越小,试验结果越准确。并选取试验材料,以验证上述结论。Vickers hardness test is the most accurate test method in static hardness test.However,in the actual operation of Vickers hardness test,it will be interfered by many factors,thus affecting the experimental results.Several groups of parallel tests for Vickers hardness test on multiple standard plates were conducted using automatic Vickers hardness test equipment.The influence of indentation spacing on the measurement results was analyzed.The uncertainty of tested results was calculated according to GB/T 4340.1⁃2009.It was found that the larger the indentation spacing was,the smaller the uncertainty was,and more accurate the test result was.Some testing materials were selected to verify the above conclu⁃sions.At present,there was a lack of research on the influence of indentation spacing on hardness value.

关 键 词：维氏硬度 不确定度 压痕间距 

分 类 号：TG115.5[金属学及工艺—物理冶金]