Aceros de baja aleación y alto rendimiento

M. Campos; L. Blanco; J. Sicre-Artalejo; J. M. Torralba

doi:10.3989/revmetalm.2008.v44.i1.90

Authors

M. Campos Carlos III University, Department of Materials Science and Engineering
L. Blanco Carlos III University, Department of Materials Science and Engineering - Saintgobain Glass Solar Control S.L.
J. Sicre-Artalejo Carlos III University, Department of Materials Science and Engineering
J. M. Torralba Carlos III University, Department of Materials Science and Engineering

DOI:

https://doi.org/10.3989/revmetalm.2008.v44.i1.90

Keywords:

Powder metallurgy, Chromium and molybdenum steels, Manganese, High density systems

Abstract

A highly demanding automobile market requires an intensification of the efforts on increasing the performance and reducing costs of sintered steels, in order to stay in such a competitive market. Final properties of sintered parts and their cost depend on two main factors, density and the alloying system. The growing interest for Cr and Mn as alloying elements is due to both price, more suitable than Mo, and the excellent level of properties which are achieved in assintered parts as well as after the heat treatments. In this work, the possible techniques which lead to an enhancement of density are discussed, such as warm and high velocity compaction, or high temperature sintering; moreover it is important to study the synergy between the proposed techniques which may be compatible.

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