Hybrid plasma surface alloying of austenitic stainless steels with nitrogen and carbon.

Date

2005-09-15

Advisors

Journal Title

Journal ISSN

ISSN

0921-5093

Volume Title

Publisher

Elsevier

Type

Article

Peer reviewed

Abstract

A hybrid plasma surface alloying process has been developed for austenitic stainless steels to improve their surface hardness, wear resistance and corrosion resistance. The process is carried out at temperatures below 450 °C and facilitates the simultaneous introduction of nitrogen and carbon into the surfaces of austenitic stainless steels, forming a dual layer structure with an extremely hard nitrogen-enriched layer on top of a hard carbon-enriched layer. Both nitrogen and carbon reside in the relevant layer forming a precipitation-free and supersaturated solid solution with expanded austenite structure, thus achieving much increased hardness and corrosion resistance. The present paper describes this novel process and the resultant structural and properties characteristics.

Description

Keywords

RAE 2008, UoA 28 Mechanical, Aeronautical and Manufacturing Engineering

Citation

Sun, Y. (2005) Hybrid plasma surface alloying of austenitic stainless steels with nitrogen and carbon. Materials Science and Engineering A, 404(1-2), pp. 124-129.

Rights

Research Institute

Institute of Engineering Sciences (IES)