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基于热加工图的TiNiNb合金高温塑性研究
英文标题:Study of high temperature plasticity of TiNiNb alloy based on processing plan
作者:杨根林 李付国 赵伟 王二敏 韩劲 倪志铭 
单位:北京航空材料研究院 西北工业大学材料科学与工程学院 
关键词:TiNiNb合金 本构方程 变形特征 热加工图 
分类号:TG306
出版年,卷(期):页码:2010,35(3):139-143
摘要:

采用热模拟压缩试验研究铸态TiNiNb合金在变形温度为700~1050 ℃、应变速率为0.01~10 s-1条件下的热变形特征,基于试验结果建立了铸态TiNiNb合金的热变形本构方程。根据动态材料模型,计算并分析合金的热加工图。利用热加工图确定热变形的流变失稳区,并且获得了试验参数范围内热变形过程的最佳工艺参数,加热温度为750~880 ℃、应变速率为0.3~10 s-1,或者加热温度为880~950 ℃、应变速率为0.01~0.5 s-1

Hot deformation characteristics of as-cast TiNiNb alloy was studied by hot compression simulation tests under the strain rate range of 0.01-0.1 s-1 and the temperature of 700-1000 ℃. Based on the experiment data, hot deformation constitutive equation of as-cast TiNiNb was established. The processing plans were calculated and analyzed according to the dynamic materials model. The instability zones of flow behavior could be recognized by the plans. The optimum processing parameters of hot deformation in the range of this experiment could also be attained by the plans, in which the hot temperature was 750-880 ℃ and the strain rate was 0.310 s-1 or the hot temperature was 880-950 ℃ and the strain rate was 0.01-0.5 s-1.
 

基金项目:
“十一五”装备预先研究项目(51318040105)
作者简介:
参考文献:


[1]Kazuhiro Otsuka, Ren Xiaobing. Developments in the research of shape memory alloys[J]. Intermetallics,1999,7:511-528.
[2]赵连城,蔡伟,郑玉峰. 合金的形状记忆效应与超弹性[M]. 北京:国防工业出版社,2002.
[3]张红纲,何勇,刘雪峰,等.NiTi形状记忆合金热压缩变形行为及本构关系[J].金属学报,2007,43(9):930-936.
[4]王艳,王明家,蔡大勇,等.高强度奥氏体不锈钢的热变形行为及其热加工图[J].材料热处理学报,2005,26(4):65-69.
[5]Srinivasan N,Prasad Y V R K. Hot working characteristics of Nimonic 75, 80A and 90 superalloys: A comparison using processing maps[J].Journal of Materials Processing Technology,1995,51:171-192.
[6]张伟红,张士宏.NiTi合金热压缩实验数据的修正及其本构方程[J].金属学报,2006,42(10):1038.
[7]王蕊宁,奚正平,赵永庆,等.Zr-4合金的热变形和加工图[J].稀有金属材料与工程,2007,36(5):809-810.
[8]郑修麟.材料的力学性能[M].西安:西北工业大学出版社,2000.
[9]张鹏,李付国,李惠曲.SiC颗粒增强铝基复合材料的热成形性能与热加工图[J].稀有金属材料与工程,2009,38(1):9-14.
[10]莫华强,李聪,王丛林,等.NiTiNb形状记忆合金的组织研究[J].核动力工程,2003,24(6):560-561.
[11]王玉凤,李付国,赵伟,等.基于热加工图的钼金属热变形特征研究[J].稀有金属材料与工程,2009,38(8):1359-1360.

 

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