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Erschienen in: Metallurgical and Materials Transactions A 5/2009

01.05.2009

Correlation of Microstructure with Hardness, Wear Resistance, and Corrosion Resistance of Powder-Injection-Molded Specimens of Fe-Alloy Powders

verfasst von: Chang-Young Son, Tae Shik Yoon, Sunghak Lee

Erschienen in: Metallurgical and Materials Transactions A | Ausgabe 5/2009

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Abstract

In this study, the powder injection molding (PIM) process was applied to Fe-alloy powders. Microstructure, hardness, wear resistance, and corrosion resistance of the PIM specimens were analyzed and compared with those of a conventional stainless steel, SS316L. When Fe-alloy powders were injection molded and then sintered at 1200 °C or 1250 °C, completely densified specimens with almost no pores were obtained. They contained 63 to 80 vol pct of hard (Cr,Fe)2B dispersed in the austenite or martensite matrix. Since these (Cr,Fe)2B borides were very hard, thermally stable, and corrosion resistant, hardness, high-temperature hardness, wear resistance, and corrosion resistance of the PIM specimens of Fe-alloy powders were 2 to 5 times as high as those of the stainless steel. Such property improvement suggested new applicability of the PIM products of Fe-alloy powders to structures and parts requiring excellent mechanical properties.

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ARMACOR is a trademark of Liquidmetal Technologies, Lake Forest, CA.
 
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Metadaten
Titel
Correlation of Microstructure with Hardness, Wear Resistance, and Corrosion Resistance of Powder-Injection-Molded Specimens of Fe-Alloy Powders
verfasst von
Chang-Young Son
Tae Shik Yoon
Sunghak Lee
Publikationsdatum
01.05.2009
Verlag
Springer US
Erschienen in
Metallurgical and Materials Transactions A / Ausgabe 5/2009
Print ISSN: 1073-5623
Elektronische ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-009-9809-1

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