铸造技术2017，Vol.38Issue(12)：2847-2850,4.DOI:10.16410/j.issn1000-8365.2017.12.015
5CrNiMo模具钢的强韧化热处理工艺研究
Study on Strengthening-Toughening Heat Treatment Process of 5CrNiMo Die-steel
摘要
Abstract
The 5CrNiMo die-steel was analyzed under different quenching temperature of 820～940 ℃.The effect of the temperature on the microstructure,wear resistance and impact toughness were studied.The results show that under the quenching temperature of 820～880 ℃,the matrix of twin martensite and retained austenite reduce gradually with increase of quenching temperature,while plate strip martensite and granular carbides increase gradually,wear resistance and toughness increase gradually,fracture morphologies form small deep dimple gradually.When the quenching temperature reaches 880 ℃,the lath martensite and granular carbide distribute uniformly in the matrix.Wear resistance and toughness show the best performance.Within the range of 900～920 ℃ quenching temperature,with increase of quenching temperature,the retained austenite matrix increase gradually,the granular carbides reduce gradually,wear resistance and impact toughness become worse.关键词
5CrNiMo模具钢/淬火温度/组织/性能Key words
5CrNiMo die-steel/quenching temperature/microstructure/properties分类
矿业与冶金引用本文复制引用
李涛,王向杰..5CrNiMo模具钢的强韧化热处理工艺研究[J].铸造技术,2017,38(12):2847-2850,4.基金项目
湖北省教育厅科学技术研究资助项目(B2014032) （B2014032）
