Laser beam interaction with Ni-Mn-Ga ferromagnetic shape memory alloys

被引：12
|
作者：
Craciunescu, C. M. [1 ,3 ]
Miranda, R. M. [2 ]
Silva, R. J. C. [1 ]
Assuncao, E. [4 ]
Braz Fernandes, F. M. [1 ]
机构：
[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, CENIMAT I3N, P-2829516 Monte De Caparica, Portugal
[2] Univ Nova Lisboa, Fac Ciencias & Tecnol, Dept Engn Mecan & Ind, UNIDEMI, P-2829516 Monte De Caparica, Portugal
[3] Politehn Univ Timisoara, Timisoara 3006, Romania
[4] Cranfield Univ, Cranfield MK43 0AL, Beds, England
来源：
OPTICS AND LASERS IN ENGINEERING | 2011年 / 49卷 / 11期
基金：
英国工程与自然科学研究理事会;
关键词：
Ferromagnetic shape memory alloys; Ni-Mn-Ga system; Laser beam interaction; Pulsed Nd/YAG laser; MAGNETOSTRICTION; GROWTH;
D O I：
10.1016/j.optlaseng.2011.06.007
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Laser beam interaction with alloys belonging to the Ni-Mn-Ga ferromagnetic shape memory alloy group has been investigated in order to assess the possibilities to use laser radiation for processing these materials, as for machining, joining or surface modification. The brittleness of Ni-Mn-Ga alloys is, as expected, an important factor and the formation of cracks appears to be difficult to be avoided. The laser interaction leads to vaporization on the impact zone and the changes in the chemical composition have been analyzed with respect to the beam parameters for penetration and surface melting, respectively. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1289 / 1293
页数：5
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