Effect of Ni Concentrations and C/O Ratios on the Stability of Nonmetallic Inclusions in Ni-Rich Ti-Ni Alloys

被引：0
|
作者：
Yamashita F. [1 ,2 ]
Soejima Y. [3 ]
Akamine H. [3 ]
Nishida M. [3 ]
机构：
[1] Department of Applied Science for Electronics and Materials, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga
[2] Technology Development Department, Special Metals Division, Furukawa Techno Material Co., Ltd., Hiratsuka
[3] Department of Advanced Materials Science and Engineering, Faculty of Engineering Sciences, Kyushu University, Kasuga
来源：
Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals | 2021年 / 85卷 / 04期
基金：
日本学术振兴会;
关键词：
Carbon to oxygen ratio; Fabrication process; Medical device; Nickel-rich titanium-nickel alloy; Nonmetallic inclusion;
D O I：
10.2320/JINSTMET.J2020056
中图分类号：
学科分类号：
摘要：
The effects of Ni concentrations and carbon to oxygen (C/O) ratios on the phase formation during the commercial production process and morphology of nonmetallic inclusions were investigated in Ni-rich Ti-Ni alloys. In the process from casting to forging, a phase change from Ti(C,O) to Ti4Ni2OX occurred depending on the Ni concentration and C/O ratios. The phase change from Ti(C,O) to Ti4Ni2OX was easy to proceed in the alloys with low Ni concentrations and C/O ratios, whereas the Ti(C,O) was stable in the alloys with high Ni concentrations and C/O ratios. © 2021 The Japan Institute of Metals and Materials.
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页码：162 / 166
页数：4
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