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Ti-45.5A1-2Cr-2Nb-0.15B合金热挤压组织与拉伸性能研究
刘仁慈; 王震; 刘冬; 柏春光; 崔玉友; 杨锐
2013-06-11
Source Publication金属学报
Issue6Pages:641-648
Abstract采用包套近等温热挤压得到Ti-45.5Al-2Cr-2Nb-0.15B合金棒材.结合有限元数值模拟,研究了挤压变形组织的形成及各部位差异,获得了棒材不同部位组织与室温拉伸性能的关系.结果表明,热挤压变形有效细化了片层晶粒尺寸,棒材轴向各部位组织和室温断后延伸率较为均匀,但径向芯部与边缘差别较大,且这种径向组织性能差异未能通过后续α单相固溶热处理消除,挤压棒材各部位片层晶粒尺寸随有效应变的增大而减小,本工作所得挤压棒材中有效应变大于2.25处具有细小均匀组织,而组织类型差异主要由变形过程中的坯料温度变化所致,其中尾部边缘坯料温度受低温模具激冷作用而迅速下降,相应亚稳α相分解析出γ片层并在后续变形...
description.department中国科学院金属研究所
KeywordΓ-tial基合金 包套热挤压 有限元数值模拟 全片层组织 拉伸性能
Language中文
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71842
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
刘仁慈,王震,刘冬,等. Ti-45.5A1-2Cr-2Nb-0.15B合金热挤压组织与拉伸性能研究[J]. 金属学报,2013(6):641-648.
APA 刘仁慈,王震,刘冬,柏春光,崔玉友,&杨锐.(2013).Ti-45.5A1-2Cr-2Nb-0.15B合金热挤压组织与拉伸性能研究.金属学报(6),641-648.
MLA 刘仁慈,et al."Ti-45.5A1-2Cr-2Nb-0.15B合金热挤压组织与拉伸性能研究".金属学报 .6(2013):641-648.
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