Development of Wear and Corrosion Resistant Metal Matrix Composites with hard Particles formed in Situ

✍ Scribed by S. Weber; H. Berns

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 489 KB
• Volume: 38
• Category: Article
• ISSN: 0933-5137
• DOI: 10.1002/mawe.200600096

✦ Synopsis

Abstract

Metal matrix composites (MMC) were developed, consisting of hardenable steel matrices and embedded particles of titanium nitride (TiN) or vanadium nitride (VN) formed in situ during the consolidation by hot isostatic pressing (HIP). Designing wear and corrosion resistant materials was the objective of this development. The materials were produced by means of powder metallurgy and are composed of a ferrritic stainless steel powder X4CrMo15–1 and crushed particles of ferro titanium or ferro vanadium, respectively. These powder mixtures were first heat treated in an N~2~‐atmosphere for alloying with nitrogen and subsequently consolidated to wear resistant MMC by HIP. This publication describes the necessary processing steps, taking into account thermodynamic equilibrium calculations with Thermo‐Calc.