| C标尺洛氏硬度试验的不确定度评定 |
| |
| 引用本文： | 叶志飞,黄显芝,李扬. C标尺洛氏硬度试验的不确定度评定[J]. 材料研究与应用, 2011, 5(2): 164-166 |
| |
| 作者姓名： | 叶志飞 黄显芝 李扬 |
| |
| 作者单位： | 广东省工业技术研究院(广州有色金属研究院),广东广州,510650 |
| |
| 摘 要： | 根据C标尺洛氏硬度试验中标准硬度块、硬度计及试样等影响不确定度的因素,提出一种试验室洛氏硬度测量值不确定度的评定的方法,即通过对产生不确定度的若干分量的计算,最后计算出扩展不确定度.被测试样的扩展不确定度U=0.62HRC,硬度值的相对偏差小于1%,表明不确定度对试验的影响在可接受范围之内.
|
| 关 键 词： | 不确定度 洛氏硬度 C标尺 |
Uncertainty evaluation of scale C rockwell hardness test |
| |
| YE Zhifei,HUANG Xianzhi,LI Yang. Uncertainty evaluation of scale C rockwell hardness test[J]. MATERIALS RESEARCH AND APPLICATION, 2011, 5(2): 164-166 |
| |
| Authors: | YE Zhifei HUANG Xianzhi LI Yang |
| |
| Affiliation: | Guangdong General Research Institute of Industrial Technology(Guangzhou Research Institute of Non-ferrous Metals,Guangdong Guangzhou 510650,China |
| |
| Abstract: | This paper proposes a method on the evaluation of uncertainty of scale C Rockwell hardness test,in which those uncertainties associated with hardness-reference blocks,hardness tester,and specimen are taken into account.In other words,the effect on the separated uncertainties is calculated to derive the expanded uncertainty.The expanded uncertainty of test piece U=0.62HRC,and the relevant deviation of hardness within 1% show that the effect of uncertainties on the experiment is acceptable. |
| |
| Keywords: | uncertainty rockwell hardness scale C |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《材料研究与应用》浏览原始摘要信息 |
|
点击此处可从《材料研究与应用》下载免费的PDF全文 |
|
