摘要
在电站锅炉实际检测中,通常会将现场检测的里氏硬度转换成布氏硬度,但现有的换算关系缺乏材料针对性,且硬度范围也较窄。对P22钢进行了顶端淬火和整体热处理试验,获得硬度范围更宽、分布更均匀的里氏硬度与布氏硬度,然后建立里氏硬度与布氏硬度之间的转换关系。结果表明:P22钢的里氏硬度与布氏硬度之间呈二次回归关系,其转换关系为HBW=00.016H_(LD)^(2)-06.6H_(LD)+155.7。
In the inspection of power plant boiler,the Leeb hardness detected on site is usually converted into Brinell hardness.However,the existing conversion relationship does not make a detailed distinction between different materials,and the range of hardness is not wide enough.The end-quenching and integral heat treatment experiments of P22 steel were carried out.The hardness values of Leeb and Brinell with wider hardness range and more uniform distribution were obtained,and then the conversion relationship between Leeb hardness and Brinell hardness was established.The results show that there was a quadratic regression relationship between the Leeb hardness and Brinell hardness,and the conversion relationship is HBW=0.0016 H_(LD)^(2) -0.66 H_(LD)+155.7.
作者
张启礼
金学峰
翟孟杰
诸美杏
黄耀杰
张凤林
ZHANG Qili;JIN Xuefeng;ZHAI Mengjie;ZHU Meixing;HUANG Yaojie;ZHANG Fenglin(Guangdong Institute of Special Equipment Inspection and Research,Foshan 528251,China;School of Mechanical and Electronic Engineering,Guangdong University of Technology,Guangzhou 510006,China)
出处
《理化检验（物理分册）》
CAS
2021年第10期18-22,26,共6页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
基金
广东省质量技术监督局科技项目(2018CT16)。
关键词
P22钢
热处理
里氏硬度
布氏硬度
转换关系
P22 steel
heat treatment
Leeb hardness
Brinell hardness
conversion relationship
