TY - JOUR
T1 - Laser beam interaction with Ni-Mn-Ga ferromagnetic shape memory alloys
AU - Silva, Rui Jorge Cordeiro
AU - Braz Fernandes, Francisco Manuel
AU - Miranda, Rosa Maria Mendes
AU - Craciunescu, Corneliu Marius
PY - 2011/1/1
Y1 - 2011/1/1
N2 - 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.
AB - 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.
KW - Laser beam interaction
KW - Ferromagnetic shape memory alloys
KW - Ni-Mn-Ga system
KW - Pulsed Nd/YAG laser
U2 - 10.1016/j.optlaseng.2011.06.007
DO - 10.1016/j.optlaseng.2011.06.007
M3 - Article
SN - 0143-8166
VL - 49
SP - 1289
EP - 1293
JO - Optics and Lasers in Engineering
JF - Optics and Lasers in Engineering
IS - 11
ER -