吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (3): 853-858.doi: 10.13229/j.cnki.jdxbgxb201603026
谷诤巍, 吕萌萌, 赵立辉, 徐虹, 李欣, 陆冠含
GU Zheng-wei, LYU Meng-meng, ZHAO Li-hui, XU Hong, LI Xin, LU Guan-han
摘要： 以汽车用超高强钢22MnB5为研究对象,开发了一种压力可调的热成形淬火装置,采用二步染色金相分析技术及材料性能试验等对热成形淬火阶段工艺参数进行优化。结果表明:对于2 mm厚22MnB5,当以室温下的水为冷却介质时,热成形淬火阶段板料发生完全马氏体转变的临界压力为0.3 MPa;实际生产中,2 mm厚22MnB5热成形淬火阶段的最佳压力为1.0 MPa以上;板料从800 ℃开始冷却时,最佳的保压时间为8 s。
中图分类号:
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