한국분말야금학회:학술대회논문집 (Proceedings of the Korean Powder Metallurgy Institute Conference)
- 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part 1
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- Pages.405-406
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- 2006
Nominally Equivalent Powders for P/M Steels: Analysis of Response to Sintering and Differences at Various C Content
- Bocchini, G. F. (P/M Consultant) ;
- Ienco, M. G. (Genoa University) ;
- Pinasco, M. R. (Genoa University) ;
- Stagno, E. (Genoa University) ;
- Baggioli, A. (Politecnico di Milano - Polo di Lecco) ;
- Gerosa, R. (Politecnico di Milano - Polo di Lecco) ;
- Rivolta, B. (Politecnico di Milano - Polo di Lecco)
- 발행 : 2006.09.24
초록
Raw materials from different sources, produced by a given process and having equal chemical composition, are supposed to be equivalent. The differences in sintering behavior have been investigated on P/M steels obtained from four diffusion-bonded powders (Fe + Ni + Cu + Mo) on atomized iron base, at the same alloy contents. Two levels of carbon and two sintering conditions have been investigated. Dimensional changes, C content, hardness, microhardness pattern, universal hardness, fractal analysis, pore features, microstructure features, and rupture strength have been compared to characterize different raw materials. The results show that the claimed equivalence is not confirmed by experimental data.