摘要
通过Leica DM 2500光学显微镜和MICROMET 5104维氏硬度计研究了不同热处理工艺对拉拔0Cr13钢丝显微组织和硬度的影响。结果表明:试验用冷拔0Cr13不锈钢丝750~830℃加热2 min可以完成再结晶,而845~880℃加热时1 min就能完成再结晶。可见,随着加热温度的升高,材料发生再结晶的时间逐渐变短。但是当加热温度超过920℃后空冷过程中容易形成马氏体,且随加热温度的升高马氏体含量增加。试验用材料的最佳热处理工艺为845~880℃加热1 min。试验条件下,再结晶完成后,材料硬度为130~140 HV0.1。
Effect of heat treatment process on the microstructure and hardness of 0Cr13 cold-drawn wire was studied by Leica DM2500 optical microscope and MICROMET 5104 Vickers hardness tester.The results reveal that the cold-drawn 0Cr13 stainless steel wire is recrystallized after heating at 750-830℃for 2 min,and the recrystallization is completed after heating at 845-880℃for 1 min.So with the increase of holding temperature,the recrystallization time shortens gradually.But the martensite is prone to form during the air cooling when holding at up to 920℃,and the content of martensite is increased with the increase of heating temperature.The optimum heat treatment process is holding for 1 min at 845-880℃,and the hardness of the tested material is about 130-140 HV0.1 when the crystallization is finished.
作者
段路昭
崔娟
Duan Luzhao;Cui Juan(Xingtai Iron&Steel Co.,Ltd.,Xingtai Hebei 054027,China;Hebei Engineering Research Center for Wire Rod,Xingtai Hebei 054027,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2020年第7期97-100,共4页
Heat Treatment of Metals
