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Title: Liquid-phase sintering of medical-grade P558 stainless steel using a new biocompatible eutectic additive
Authors: Ghaffari, Mohammad
Mashhadi, Sh. Bagheri
Salahinejad, E.
Hadianfard, M. J.
Okyay, A. K.
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2012
Source: Salahinejad, E., Hadianfard, M. J., Ghaffari, M., Mashhadi, S. B., & Okyay, A. K. (2012). Liquid-phase sintering of medical-grade P558 stainless steel using a new biocompatible eutectic additive. Materials Letters, 74, 209-212.
Series/Report no.: Materials letters
Abstract: One of the effective approaches to reduce residual pores in powder metallurgy parts is activated liquid-phase sintering process using proper additives. In this work, for the first time, a new biocompatible additive (Mn–11.5 wt.% Si, a eutectic alloy) is experimented for liquid-phase sintering of nanocrystalline/amorphous P558 stainless steel powders. It is realized that by increasing the sintering aid content and temperature, the density is effectively increased: a sharp densification progress when the sintering temperature increases from 1000 °C to 1050 °C and a slower densification rate when it exceeds 1050 °C. This preliminary study opens up the development of high-density medical-grade stainless steels produced by powder metallurgy, where suitable additives can lower sintering temperature and time, which is promising for retarding grain growth and commercial applications.
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2012.01.118
Fulltext Permission: none
Fulltext Availability: No Fulltext
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