苏娟华,周铁柱,任凤章,魏世忠,陈志强

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心
• 3:中国船舶重工集团公司第七二五研究所

摘要(Abstract)：

利用Gleeble-1500D热模拟试验机对锻态工业纯钛TA1进行高温拉伸试验,其变形温度为800~1050℃,变形速率为0.01~1 s-1,并对工业纯钛TA1进行变形抗力研究,分析了变形温度、应变速率和变形程度对变形抗力的影响。结果表明,变形抗力曲线主要以动态回复、再结晶软化为主要特征。温度对变形抗力的影响是以工业纯钛TA1相变点为界限。800和1000℃时,随应变速率增大,变形抗力先增大后减小;变形温度为850、900和1050℃时,变形抗力随应变速率增大而增大。变形抗力随变形程度增加,其变化呈两种趋势。

关键词(KeyWords)： 纯钛;变形抗力;数学模型

Abstract:

Keywords:

基金项目(Foundation): 河南省科技创新杰出人才支持计划项目(144200510009);; 长江学者和创新团队发展计划资助(IRT1234)

作者(Author): 苏娟华,周铁柱,任凤章,魏世忠,陈志强

DOI: 10.13289/j.issn.1009-6264.2015.05.037

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