布氏硬度与抗拉强度的相关性在质控中的应用  

Application of correlation between Brinell hardness and tensile strength in quality control

作　　者：孙远东[1] SUN Yuandong(Ningbo Branch of Chinese Academy of Ordnance Science,Baotou 014034,China)

机构地区：[1]中国兵器科学研究院宁波分院,内蒙古包头014034

出　　处：《兵器材料科学与工程》2019年第2期92-95,共4页Ordnance Material Science and Engineering

摘　　要：研究检测结果的质量控制是保证试验质量水平的必要措施。采用基于相关性检验法、最小二乘法、方差检验法、回归预测法对某42CrMo调质钢布氏硬度和抗拉强度结果进行研究。结果表明:42CrMo调质钢的布氏硬度和抗拉强度之间存在较好的线性关系,回归的数学模型具有较好的显著性,通过统计学计算能实现对42CrMo调质钢室温拉伸试验中抗拉强度检测结果的质量控制。The quality control of the test results is a necessary measure to ensure laboratory quality level.The results of Brinell hardness and tensile strength of a 42CrMo tempered steel were studied by correlation test,least square method,variance test and regression prediction.The results show that there is a good linear relationship between Brinell hardness and tensile strength of 42CrMo tempered steel.The regression mathematical model has good significance.Through statistical calculation,the quality control of tensile strength test results of 42CrMo tempered steel in room temperature tensile test can be realized.

关 键 词：相关性检验 最小二乘法 回归预测 质量控制 42CRMO钢 布氏硬度 抗拉强度 

分 类 号：TS411.1[农业科学—烟草工业]