添加Fe元素改善TiAl-Nb合金的显微组织和力学性能(英文)
发布时间:2021-06-06 08:29
为了提高TiAl-Nb合金的力学性能并优化合金成分,熔炼制备不同含Fe量(0,0.3,0.5,0.7,0.9和1.1,摩尔分数,%)Ti46Al5Nb0.1B合金试样,系统研究合金的宏观/显微组织及压缩力学性能。结果表明,Fe元素能细化晶粒、加重枝晶间的铝偏析并在枝晶间形成富铁B2相。室温压缩实验结果表明,合金Ti46Al5Nb0.3Fe0.1B具有最高的极限压缩强度和断裂应变,分别为1869.5 MPa和33.53%。晶粒细化及Fe元素的固溶强化能提高合金的压缩强度,γ相晶胞四方度降低及晶粒细化能提高合金的断裂应变;然而,添加过量Fe元素导致的铝偏析会降低合金的压缩强度和断裂应变。
【文章来源】:Transactions of Nonferrous Metals Society of China. 2020,30(05)EISCICSCD
【文章页数】:10 页
【文章目录】:
1 Introduction
2 Experimental
3 Results
3.1 Macrostructure of Ti46Al5Nb0.1B alloy with different Fe contents
3.2 Microstructure of Ti46Al5Nb0.1B alloy with different Fe contents
3.3 Compression properties and fractography
4 Discussion
5 Conclusions
【参考文献】:
期刊论文
[1]粉末冶金Ti-47Al-2Nb-2Cr-0.2W金属间化合物的高温动态力学行为(英文)[J]. 欧阳思慧,刘彬,刘咏,昝祥,梁霄鹏,李争. Transactions of Nonferrous Metals Society of China. 2019(06)
[2]Nb对选区激光熔化γ-TiAl基合金组织与性能的影响(英文)[J]. Adam Ismaeel,王存山. Transactions of Nonferrous Metals Society of China. 2019(05)
本文编号:3214000
【文章来源】:Transactions of Nonferrous Metals Society of China. 2020,30(05)EISCICSCD
【文章页数】:10 页
【文章目录】:
1 Introduction
2 Experimental
3 Results
3.1 Macrostructure of Ti46Al5Nb0.1B alloy with different Fe contents
3.2 Microstructure of Ti46Al5Nb0.1B alloy with different Fe contents
3.3 Compression properties and fractography
4 Discussion
5 Conclusions
【参考文献】:
期刊论文
[1]粉末冶金Ti-47Al-2Nb-2Cr-0.2W金属间化合物的高温动态力学行为(英文)[J]. 欧阳思慧,刘彬,刘咏,昝祥,梁霄鹏,李争. Transactions of Nonferrous Metals Society of China. 2019(06)
[2]Nb对选区激光熔化γ-TiAl基合金组织与性能的影响(英文)[J]. Adam Ismaeel,王存山. Transactions of Nonferrous Metals Society of China. 2019(05)
本文编号:3214000
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