理化检验-物理分册2025，Vol.61Issue(10)：18-22,5.DOI:10.11973/lhjy-wl240162
壁厚对T91钢里氏硬度与布氏硬度换算关系的影响
Effect of wall thickness on conversion relationship between Leeb hardness and Brinell hardness of T91 steel
摘要
Abstract
The hardness of base metal and weld of T91 steel small diameter tube with different wall thickness was tested by Leeb hardness tester and Brinell hardness tester respectively,and the effect of wall thickness on conversion relationship between Leeb hardness and Brinell hardness of T91 steel was studied.The results show that the error between the direct reading value and the measured value of the base metal decreased with the increase of the wall thickness.The error between the direct reading value and the measured value of the weld increased first and then decreased with the increase of the wall thickness,and finally tended to be stable.Based on regression analysis,a new conversion relationship between Leeb hardness and Brinell hardness of T91 steel small diameter thin-walled tube base metal and weld with different wall thickness was established.The absolute error between the calculated value and the measured value was 0-6 HB.关键词
T91钢小径管/里氏硬度计/布氏硬度计/壁厚/换算关系Key words
T91 steel small diameter tube/Leeb hardness tester/Brinell hardness tester/wall thickness/conversion relationship分类
通用工业技术引用本文复制引用
鲁志兵,徐国正,张子扬,樊传琦..壁厚对T91钢里氏硬度与布氏硬度换算关系的影响[J].理化检验-物理分册,2025,61(10):18-22,5.基金项目
安徽省住建厅科学技术项目(2024-YF106) （2024-YF106）
