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Rapid surface alloying by Ti of AISI 316L stainless steel using. Low energy high current pulsed electron beam

Published online by Cambridge University Press:  06 May 2008

K. M. Zhang
Affiliation:
Laboratoire d'Étude des Textures et Applications aux Matériaux (LETAM), UMR-CNRS 7078, Université Paul Verlaine Metz, Ile du Saulcy, 57045 Metz, France
J. X. Zou*
Affiliation:
Laboratoire d'Étude des Textures et Applications aux Matériaux (LETAM), UMR-CNRS 7078, Université Paul Verlaine Metz, Ile du Saulcy, 57045 Metz, France State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, P.R. China
T. Grosdidier
Affiliation:
Laboratoire d'Étude des Textures et Applications aux Matériaux (LETAM), UMR-CNRS 7078, Université Paul Verlaine Metz, Ile du Saulcy, 57045 Metz, France State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, P.R. China
C. Dong
Affiliation:
State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, P.R. China
S. Weber
Affiliation:
Laboratoire de Physique des Matériaux (LPM), UMR-CNRS 7556, École des Mines, Parc de Saurupt, 54042 Nancy, France
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Abstract

This paper reports the first results of an ongoing research work on rapid surface alloying of an AISI 316L stainless steel by low energy, high current pulsed electron beam (LEHCPEB) with the aim of enhancing the corrosion resistance of this material against aggressive halide ions. A Ti powder layer was deposited on the substrate and in-corporate at the top surface by using LEHCPEB. Due to the rapid surface melting, liquid state mixing occurred and a Ti-rich layer formed. The alloyed layer contained a mixture of the $\alpha $ and γ phases because the addition of Ti favors the formation of α. The corrosion resistance of the AISI 316L stainless steel in the simulated body fluid was effectively improved after surface alloying by Ti.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 2008

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