Author(s)

G. Scavino, E. Angelini, M. Rosso & F. Rosalbino

Abstract

Comparison of corrosion resistance properties of PM steels G. Scavino, E. Angelini, M. Rosso, F. Rosalbino Department of Material Science and Chemical Engineering, Polytechnic of Torino, Torino, Italy ABSTRACT The corrosion behaviour of industrially produced P.M. AISI 304L and AISI 316L austenitic stainless steels sintered in different conditions, was studied in sulphuric acid solution as a function of several parameters. The samples sintered in dissociated ammonia atmosphere show better mechanical properties but lower corrosion resistance with respect to samples sintered in vacuum because of the precipitation of chromium rich phases. INTRODUCTION Sintered stainless steels are extensively employed in aggressive environments in petrochemical, chemical and nuclear plants; they show well-recognized advanta- geous properties but the contemporary presence of high surface area and possible incorrect steps in the sintering cycle may negatively

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