Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.07d
- /
- Pages.1901-1903
- /
- 1999
Effects of Co Addition in High Strength and Low Thermal Expansion Invar Alloy
고강도 저열팽창 인바합금에 있어서 CO 첨가의 영향
- Kim, Bong-Seo (Korea Electrotechnology Research Institute) ;
- Jo, Yeong-Am (Korea Electrotechnology Research Institute) ;
- Yoo, Kyung-Jae (Pukyong National University) ;
- Kwon, Hae-Woong (Pukyong National University) ;
- Lee, Hui-Ung (Korea Electrotechnology Research Institute) ;
- Kim, Byung-Geol (Korea Electrotechnology Research Institute)
- 김봉서 (한국전기연구소) ;
- 조영암 (한국전기연구소) ;
- 유경재 (부경대학교 재료공학과) ;
- 권해웅 (부경대학교 재료공학과) ;
- 이희웅 (한국전기연구소) ;
- 김병걸 (한국전기연구소)
- Published : 1999.07.19
Abstract
To investigate invar alloy as a core material for increased capacity over-head transmission line which have high strength and low thermal expansion coefficient, hardness and thermal expansion coefficient of Fe-Ni-Co alloy have been studied. It is necessary that invar alloy have low thermal expansion coefficient and high strength for increased capacity over-head transmission line. In this paper. we tried to find out the effect of Ni and Co which has ferromagnetic properties and high saturation magnetization. It was found that Ni decrease thermal expansion coefficient and hardness, Co decrease thermal expansion coefficient but increase hardness in Fe-xNi-Co system. In Fe-(29-x)Ni-Co system, the material has no low thermal expansion properties substituting Co instead of Ni in concentration range of
Keywords