Personal Information
- (Associate Professor)
Name (Pinyin):
wangjingzhongSchool/Department:
冶金工程学院Education Level:
Postgraduate (Doctoral)Gender:
MaleContact Information:
Wzjxjd2003@sina.comDegree:
Doctoral degreeProfessional Title:
Associate ProfessorStatus:
EmployedAcademic Titles:
副教授Alma Mater:
钢铁研究总院Discipline:
Materials Processing Engineering
Other Contact Information
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Email:
Paper Publications
40CrNiMo钢的热变形特征及变形抗力模型
- Release time:2024-08-09
- Hits:
-
Affiliation of Author(s):
冶金工程学院 -
Journal:
机械工程材料 -
Key Words:
40CrNiMo钢;流变应力;变形抗力;显微组织; -
Abstract:
采用Gleeble-3500型热模拟试验机对40CrNiMo钢进行了单道次热压缩试验,得到了其在应变速率0.1 5 0s -1 、变形温度800 1 100℃下的应力-应变曲线,观察了变形后的显微组织并分析了热变形特征;建立了该钢的变形抗力模型并进行了试验验证。结果表明:较高的变形温度或较低的应变速率更有利于40CrNiMo钢的完全动态再结晶;变形温度为800℃时,应变速率增大使动态再结晶晶粒增多;应变速率为10s -1 条件下,当变形温度由800℃升至900℃时,动态再结晶晶粒增多,变形温度为1 000℃时,40CrNiMo钢发生了完全动态再结晶,变形温度为1 100℃时,动态再结晶晶粒长大;计算得到40CrNiMo钢的动态再结晶激活能为322.53kJ·mol -1 ;由周纪华-管克智模型计算得到的变形抗力与试验值的平均相对误差为4.82%,模拟精度较高。 -
First Author:
Jane,duzhongze,wangjingzhong -
Indexed by:
Journal paper -
Correspondence Author:
李科元,刘阿娇 -
Discipline:
Engineering -
Volume:
中文核心期刊:57-61+66,6 -
ISSN No.:
1000-3738 -
Translation or Not:
no -
Date of Publication:
2018-07-20