Influence of alloy element partitioning on strength of primary α phase in Ti-6Al-4V alloy
查看参考文献37篇
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文摘
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The partitioning effect of Al (α-phase stabilizer) and V elements (β-phase stabilizer) on strength of the primary α phases in the α/β Ti-6Al-4V alloy with the bimodal microstructure was investigated. It was found that partitioning of Al and V elements took place in the Ti-6Al-4V alloy during the recrystallization process, leading to the variation of the content of Al andVelements in the primary αphases with changing the volume fraction of the primary α phase. Nanoindentation tests reveal a general trend that the strength of the primary α phases increases with decreasing the volume fraction of the primary α phases, and such trend is independent on the loading direction relative to the c-axis of the α phase. The enhanced strength is attributed to the increase of the content of Al element in the primary α phase, but it is not dominated evidently by the change of the V content. The solid solution strengthening contributed from both the elastic strain introduced by the solute atoms and the variation of the density of states was estimated theoretically. |
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来源
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Journal of Materials Science & Technology
,2018,34(5):782-787 【核心库】
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DOI
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10.1016/j.jmst.2017.07.016
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关键词
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Ti-6Al-4V
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Nanoindentation
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Strength
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Alloy element partitioning
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Crystallographic orientation
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地址
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1.
Institute of Metal Research, Chinese Academy of Sciences, Shenyang National Laboratory for Materials Science, Shenyang, 110016
2.
University of Chinese Academy of Sciences, Beijing, 100049
3.
School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016
4.
AVIC Commercial Aircraft Engine, Co., LTD, Shanghai, 200241
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1005-0302 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:6240450
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