Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
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- Pages.81-82
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- 2006
Influence of Compositions of Sintered Ti-Ni Alloys on their Thermo-mechanical Properties
- Kyogoku, Hideki (Department of Mechanical Engineering, Kinki University) ;
- Ikeda, Tetsuya (School of Engineering, Kinki University) ;
- Komatsu, Shinichiro (Department of Mechanical Engineering, Kinki University)
- Published : 2006.09.24
Abstract
This paper presents the influence of the compositions of sintered Ti-Ni alloys on their thermo-mechanical properties. The Ti-Ni alloys having various compositions from 50at%Ni to 51at%Ni were sintered using elemental Ti and Ni powders by a pulse-current pressure sintering equipment. The deformation resistance in stress-strain curves increased with an increase in Ni content. In the case of Ti-50at%Ni, tensile strength and elongation were more than 500 MPa and 7%, respectively. The increase in Ni content also makes the transformation temperatures lower. The deformation resistance at a test temperature change from 293K and 353K in isothermal tensile test increased with elevating test temperature.
Keywords
- Shape memory alloy;
- Ti-Ni alloy;
- pulse-current pressure sintering;
- tensile strength;
- recovery stress