Surface modification of Ni (50.6 at.%) Ti by high current pulsed electron beam treatment
Surface modification of Ni (50.6 at.%) Ti by high current pulsed electron beam treatment
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DOI：
10.1016/j.jallcom.2006.08.278
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发表时间：
2007-05
影响因子：
6.2
通讯作者：
Kemin Zhang;J. Zou;J. Zou;T. Grosdidier;N. Gey;Dazhi Yang;S. Hao;C. Dong
中科院分区：
文献类型：
--
作者：
Kemin Zhang;J. Zou;J. Zou;T. Grosdidier;N. Gey;Dazhi Yang;S. Hao;C. Dong
A Ni (50.6at.%) Ti shape memory alloy having a grain size of 30–50μm, was subjected to high current pulsed electron beam (HCPEB) irradiation and the microstructure modifications were investigated in detail. The treatment induces superfast melting and solidification at the top surface. As a result, the top surface melted layer solidified into a 600nm fine grain austenite (B2) structure. A martensitic phase transformation occurred in the subsurface zone due to the high thermal stress induced by the HCPEB treatment. This transformation was avoided in the top surface melted layer.
