Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
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- Pages.303-304
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- 2006
Sinter-hardening Process of P/M Steels and its Recent Developments
- Yi, Jianhong (State Key Laboratory for Powder Metallurgy, Central South University) ;
- Ye, Tuming (State Key Laboratory for Powder Metallurgy, Central South University) ;
- Peng, Yuandong (State Key Laboratory for Powder Metallurgy, Central South University) ;
- Xia, Qinglin (State Key Laboratory for Powder Metallurgy, Central South University) ;
- Wang, Hongzhong (State Key Laboratory for Powder Metallurgy, Central South University)
- Published : 2006.09.24
Abstract
The mechanical properties of ferrous powder metallurgy (P/M) materials are directly related to their microstructure. Ferrous P/M materials with sufficient hardenability will develop microstructures containing significant percentages of martensite in the as-sintered condition. Recently, sinter-hardening has developed into a highly cost effective production method through hardened P/M parts without the need for additional heat-treatments. This paper reviews the advances of sinter-hardening as well as some key processing parameters such as sintering temperature, cooling rate, tempering required to produce high quality sinter-hardened components. Specific topics including effect of alloying elements, alloying methods, and the Characterization and observation of microstructure are discussed.