回火温度对冶金锯片用钢75Cr1回火组织及性能的影响  

INFLUENCE OF TEMPERING TEMPERATURE ON STRUCTURE AND PROPERTY OF 75Crl STEEL FOR METALLURGICAL SAW SHADE

作　　者：苑少强[1] 郭继富[2] 

机构地区：[1]唐山学院科研处,河北唐山063000 [2]唐山冶金锯片有限公司,河北唐山063020

出　　处：《河北冶金》2009年第5期17-18,共2页Hebei Metallurgy

基　　金：唐山市科学技术研究与发展计划(08160201A-1.1)资助

摘　　要：利用金相观察、力学性能测试等手段,在400～520℃温度范围内对冶金锯片用钢75Cr1进行了连续回火处理。结果显示：随着回火温度的升高,试样的组织由淬火马氏体逐渐转化为回火马氏体、回火马氏体＋回火索氏体; 试样的强度和硬度连续下降,冲击值、断面收缩率和延伸率逐渐提高。The continuous tempering treatment is done to 75Crl steel for metallurgical saw shade within temperature range of 400 ～ 520 ℃ with metallographic examination and mechanical property test. It is showed from the result that along with the tempering temperature raised, the structure of sample gradually changed from quenching martensite into tempering martensite and tempering martensite plus tempering sorbite; strength and hardness of sample got down; impact value, cross - section shrink ratio, elongation gradually raised.

关 键 词：回火温度 冶金锯片 75Cr1 回火组织 力学性能 

分 类 号：TG333.22[金属学及工艺—金属压力加工]