苏娟华,韩亚玮,任风章,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

摘要(Abstract)：

为了实现工业纯钛TA1的数值模拟,制定合理的自由锻工艺参数,利用Gleeble-1500D热模拟实验机对工业纯钛TA1在变形温度为700、800、900和950℃和应变速率为0.01、0.1、1和5 s-1条件下的流变应力行为进行研究,最大变形程度为真应变0.7。结果表明:工业纯钛TA1在热压缩变形过程中,出现了动态回复与再结晶;流变应力随温度的升高而降低,随变形速率的减小而降低;在高的变形温度与低的应变速率下,工业纯钛TA1容易出现软化;求得了热变形激活能(Q)和双曲正弦形式的Arrhenius本构方程。

关键词(KeyWords)： 工业纯钛TA1;变形行为;热压缩;激活能;本构方程

Abstract:

Keywords:

基金项目(Foundation): 河南省科技创新杰出人才支持计划项目(144200510001);; 长江学者和创新团队发展计划资助(IRT1234)

作者(Author): 苏娟华,韩亚玮,任风章,魏世忠,陈志强

DOI: 10.13289/j.issn.1009-6264.2014.05.037

参考文献(References)：

• [1]Boyer R R.An overview on the use of titanium in the aerospace industry[J].Material Science and Engineering A,1996,213(1):103-114.
• [2]Chichili D R,Ramesh K T,Hemker K J.The high-strain-rate response of alpha-titanium:Experiments,deformation mechanisms and modeling[J].Acta Mater,1998,46(3):1025-1043.
• [3]Nemat-Nasser S,Guo W G,CHENG J Y.Mechanical properties and deformation mechanisms of a commercially pure titanium[J].Acta Mater,1999,47(13):3705-3720.
• [4]周伟,杨英丽,周振涛,等.工业纯钛TA2的高温变形机制研究[J].稀有金属,2003,27(6):721-724.ZHOU Wei,YANG Ying-li,ZHOU Zhen-tao,et al.Study on high temperature deformation mechanism of TA2[J].Chinese Journal of Rare Metals,2003,27(6):721-724.
• [5]Zeng Z P,Jonsson S,Zhang Y S.Constitutive equations for pure titanium at elevated temperatures[J].Materials Science and Engineering A,2009,505:116-119.
• [6]刘晓燕,赵西成,杨西荣,等.120°模具室温ECAP制备工业纯钛的热压缩变形行为[J].稀有金属材料与工程,2012,41(4):667-671.LIU Xiao-yan,ZHAO Xi-cheng,YANG Xi-rong.Hot compression deformation behavior of as-ECAPed CP-Ti at room temperature with 120°die[J].Rare Metal Materials and Engineering,2012,41(4):667-671.
• [7]刘晓燕,赵西成,杨西荣,等.120°模具室温ECAP制备工业纯钛的压缩变形本构关系[J].中国有色金属学报,2012,22(5):1292-1297.LIU Xiao-yan,ZHAO Xi-cheng,YANG Xi-rong,et al.Constitutive relationship of compression deformation of ultrafine-grained commercially pure titanium processed by ECAP at room temperature with 120°die[J].The Chinese Journal of Nonferrous Metals,2012,22(5):1292-1297.
• [8]崔忠圻,覃耀春.金属学与热处理[M].北京:机械工业出版社,2007.
• [9]周计明,齐乐华,陈国定.热成形中金属本构关系建模方法综述[J].机械科学与技术,2005,24(2):212-215.ZHOU Ji-ming,QI Le-hua,CHEN Guo-ding.Investigation on the constitutive relationship of materials forming in high temperature[J].Mechanical Science and Technology,2005,24(2):212-215.
• [10]李德军,刘平,董企铭,等.Mg-3Al-1Zn-0.8Nd合金热压缩变形流变应力的研究[J].材料热处理学报,2008,29(5):26-30.LI De-jun,LIU ping,DONG Qi-ming,et al.Study on flow stress of Mg-3Al-1Zn-0.8Nd alloy at hot compression[J].Transactions of Materials and Heat Treatment,2008,29(5):26-30.
• [11]李伟,高家诚.Mg-6.5Y-2.5Nd-0.6Zr合金热压缩变形流变应力行为[J].材料热处理学报,2011,32(3):40-45.LI Wei,GAO Jia-cheng.Flow stress behavior of Mg-6.5Y-2.5Nd-0.6Zr alloy during hot compression deformation[J].Transactions of Materials and Heat Treatment,2011,32(3):40-45.
• [12]王俊峰,贾淑果,陈少华,等.变形量对Cu-Ni-Si合金再结晶行为的影响[J].河南科技大学学报:自然科学版,2012,33(1):5-7.WANG Jun-feng,JIA Shu-guo,CHEN Shao-hua,et al.Effect of deformation on recrystallization behavior of Cu-Ni-Si alloy[J].Journal of Henan University of Science and Technology:Natural Science,2012,33(1):5-7.
• [13]王立民,张红,吕成林,等.0Cr11Ni2MoVNb钢高温压缩变形的流变应力[J].金属热处理,2008,33(10):74-76.WANG Li-min,ZHANG Hong,LCheng-lin,et al.Compress deform action of flow stress of 0Cr11Ni2MoVNb alloy at high temperature[J].Heat Treatment of Metals,2008,33(10):74-76.

文章评论(Comment)：