陈明和
Professor
Education Level:南京航空航天大学
Degree:Doctoral Degree in Engineering
School/Department:College of Mechanical and Electrical Engineering
Discipline:Aeronautical and Astronautical Manufacturing Engineering. Material Process Engineering
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Affiliation of Author(s):机电学院
Journal:中国有色金属学报
Key Words:TA12钛合金;高温流变行为;本构模型;
Abstract:为了研究TA12钛合金高温流变行为,构建能准确描述其高温流变行为的本构模型,对TA12钛合金进行了温度范围为700～850℃,应变速率为0.001～0.1 s -1 的高温拉伸试验。结果表明:在所研究的变形条件下,流变应力随应变的增加而逐渐增大,达到峰值应力后又逐渐减小,直至材料发生断裂,并在850℃、0.001 s -1 的变形条件下出现了稳态流动应力。综合考虑应变硬化效应、应变速率硬化效应和热软化效应的影响,提出一种修正的JC本构模型,可准确地描述TA12钛合金的高温流变行为。
Translation or Not:no
Date of Publication:2019-04-15
Co-author:叶建华,王宁,wangning,xls
Correspondence Author:cmh
