Influences of Mo addition on mechanical properties and deformation behavior of β-type Ti alloys
Influences of Mo addition on mechanical properties and deformation behavior of β-type Ti alloys
复制标题
DOI：
10.1051/matecconf/202032105001
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
K. Cho;R. Morioka;H. Yasuda
中科院分区：
文献类型：
--
作者：
K. Cho;R. Morioka;H. Yasuda
研究了Mo添加对β型Ti-Mn合金拉伸性能和变形行为的影响，特别关注{332}变形孪晶。我们发现 Ti-7Mn 和 Ti-5Mo-3Mo 合金尽管具有相同的微观结构和 β 相稳定性，但表现出完全不同的拉伸性能。由于{332}变形孪晶引起的强加工硬化，Ti-5Mn-3Mo 合金比 Ti-7Mn 合金表现出更高的拉伸强度和更大的延展性。通过使用单晶的压缩试验测量了这些合金中{332}变形孪晶的临界分辨剪切应力（CRSS）。由此发现，添加Mo可有效降低Ti-Mn合金中{332}变形孪晶的CRSS。
The influences of Mo addition on the tensile properties and deformation behavior of β-type Ti-Mn alloys were investigated with particular focus on {332} deformation twinning. We found that Ti-7Mn and Ti-5Mo-3Mo alloys exhibit completely different tensile properties, despite having the same microstructure and stability of the β phase. The Ti-5Mn-3Mo alloy demonstrates higher tensile strength and larger ductility than the Ti-7Mn alloy due to its strong work hardening, caused by {332} deformation twinning. The critical resolved shear stress (CRSS) for {332} deformation twinning in these alloys was measured by compression tests using single crystals. It was thereby found that Mo addition is effective in decreasing the CRSS for {332} deformation twinning in Ti-Mn alloys.