Salahinejad, E.Hadianfard, M. J.Ghaffari, MohammadMashhadi, S. B.Okyay, Ali Kemal2016-02-082016-02-082012-05-101073-5623http://hdl.handle.net/11693/28176This 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 (105°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.EnglishAmorphous matricesEutectic alloysMechanically alloyedNano-structuredRietveldStainless steel powdersUniform distributionX-ray mappingAmorphous siliconAustenitic stainless steelLiquidsManganeseMechanical alloyingNanocrystalline alloysSiliconTransmission electron microscopyX ray diffractionSinteringArticle10.1007/s11661-012-1186-5