Article Dans Une Revue Metallurgical and Materials Transactions A Année : 2012

Fabrication of Nanostructured Medical-Grade Stainless Steel by Mechanical Alloying and Subsequent Liquid-Phase Sintering

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This article focuses on the microstructure of medical-grade P558 (ASTM F2581) stainless steel produced by mechanical alloying and liquid-phase sintering. Rietveld X-ray diffraction and transmission electron microscopy reflect that the mechanically alloyed stainless steel powder is a nanocrystal dispersed amorphous matrix composite. Mn-11.5 wt pct Si eutectic alloy as additive improves densification of the synthesized P558 alloy via liquid-phase sintering mechanism. X-ray mapping shows that after sintering at 1323 K (1050 °C) for 1 hour, a uniform distribution of dissolved Mn and Si is achieved. Moreover, the development of a nanostructured, fully austenitic stainless steel after sintering at the same temperature is realized by X-ray diffraction and transmission electron microscopy.

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hal-05444340 , version 1 (06-01-2026)

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Erfan Salahinejad, Mohammad J Hadianfard, Mohammad Ghaffari, Shirazeh Bagheri Mashhadi, Ali K Okyay. Fabrication of Nanostructured Medical-Grade Stainless Steel by Mechanical Alloying and Subsequent Liquid-Phase Sintering. Metallurgical and Materials Transactions A, 2012, 43 (8), pp.2994 - 2998. ⟨10.1007/s11661-012-1186-5⟩. ⟨hal-05444340⟩
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