金属材料洛氏硬度与抗拉强度的相关关系  

Relationship between Rockwell Hardness and Tensile Strength of Metal Materials

作　　者：吴芳堤 曹晶晶[1] WU Fangdi;CAO Jingjing(Shanghai Hailong Oil Pipe Research Institute, Shanghai 200949, China)

机构地区：[1]上海海隆石油管材研究所,上海200949

出　　处：《理化检验（物理分册）》2019年第5期301-304,337,共5页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：通过回归分析法研究了金属材料洛氏硬度与抗拉强度之间的关系。结果表明:金属材料洛氏硬度x(HRC)与抗拉强度y(MPa)之间的关系可以表示为y=496.55+14.704x;在生产条件固定的情况下,洛氏硬度检测快速、简便,对于某些不能进行拉伸试验也不方便进行布氏硬度试验和仪器压痕试验的材料,可以通过预先得到的回归方程估算其抗拉强度。The relationship between Rockwell hardness and tensile strength of metal materials was studied by regression analysis.The results show that the relationship between Rockwell hardness x(HRC)and tensile strength y(MPa)can be expressed as y=496.55+14.704 x.Rockwell hardness test is fast and simple under fixed production conditions.For some materials which cannot be tested by tensile test,Brinell hardness test and instrument indentation test,the tensile strength could be estimated by the regression equation obtained in advance.

关 键 词：金属材料 洛氏硬度 抗拉强度 回归分析 

分 类 号：TG115[金属学及工艺—物理冶金]