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Modifications of Surface Microstructure and Properties Induced by High Current Pulsed Electron Beam (HCPEB) Treatments of Intermetallics

Published online by Cambridge University Press:  26 February 2011

Thierry Grosdidier ,
Jianxin Zou ,
Gang Ji ,
Kemin Zhang ,
Xiangdong Zhang ,
Shengzhi Hao  and
Chuang Dong
Thierry Grosdidier
Affiliation:
[email protected], Laboratoire d'Etude des Textures et Application aux Matériaux (LETAM), UMR CNRS 7078, Université de Metz, Ile du Saulcy, Metz, 57045, France
Jianxin Zou
Affiliation:
[email protected], LETAM, UMR CNRS 7078, Université Paul Verlaine Metz, Ile du Saulcy, Metz, 57045, France
Gang Ji
Affiliation:
[email protected], LETAM, UMR CNRS 7078, Université Paul Verlaine Metz, Ile du Saulcy, Metz, 57045, France
Kemin Zhang
Affiliation:
[email protected], LETAM, UMR CNRS 7078, Université Paul Verlaine Metz, Ile du Saulcy, Metz, 57045, France
Xiangdong Zhang
Affiliation:
[email protected], State key lab. of materials modification, Dalian University of Technology, Dalian, 116024, China, People's Republic of
Shengzhi Hao
Affiliation:
[email protected], State key lab. of materials modification, Dalian University of Technology, Dalian, 116024, China, People's Republic of
Chuang Dong
Affiliation:
[email protected], State key lab. of materials modification, Dalian University of Technology, Dalian, 116024, China, People's Republic of
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Abstract

High current pulsed electron beam (HCPEB) is a fairly new technique for surface modifications. The present contribution reviews some recent insights on the microstructure modifications encountered at the top surface of HCPEB treated (NiTi and FeAl) intermetallics. In particular, the potential of the technique for structure modifications associated with the use of the pulsed electron beam under “heating” and “melting” conditions is highlighted. The interesting surface modifications include the creation of an homogeneous protective layer under the melting mode while thermal stresses under the heating mode can induce surface hardening and stress enhanced rapid solid state alloying.

Keywords

electron irradiationrapid solidificationalloy
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 980: Symposium II – Advanced Intermetallic-Based Alloys , 2006 , 0980-II01-11
Copyright
Copyright © Materials Research Society 2007

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