TY - JOUR
T1 - Kinetic study of embrittlement of Ti- and Zr-based metallic glasses caused by annealing-induced structural relaxation
AU - Seki, I.
AU - Kimura, H.
AU - Inoue, A.
PY - 2009/1/1
Y1 - 2009/1/1
N2 - We have clarified relation between embrittlement behavior and crystallization or structural relaxation behavior of Zr55Cu 30Al10Ni5 and Ti47.4Cu 42Zr5.3TM5.3(TM Ni, Co, Fe) metallic glasses. The embrittled samples were prepared by isothermal annealing at various temperatures and times. The embrittlement behavior of the metallic glasses was compared with the crystallization and structural relaxation behavior estimated by kinetic calculation. In the present study, we have clarified as follows, (1) The Zr55Cu30Al10Ni5 metallic glass becomes brittle with precipitation of crystal, and the behavior agrees with the kinetic calculation of crystallization. (2) The Ti47.4Cu 42Zr5.3Ni5.3 metallic glass is embrittled with structural relaxation, and the behavior agrees with the kinetic calculation using DSC-heat flow of glass transition. (3) The Ti47.4Cu 42Zr5.3TM5.3(TMCo, Fe) metallic glasses are also embrittled with structural relaxation, although embrittlement behavior of these glasses is influenced more sensitively by the structural relaxation compared with the Ti47.4Cu42Zr5.3Ni 5.3metallic glass.
AB - We have clarified relation between embrittlement behavior and crystallization or structural relaxation behavior of Zr55Cu 30Al10Ni5 and Ti47.4Cu 42Zr5.3TM5.3(TM Ni, Co, Fe) metallic glasses. The embrittled samples were prepared by isothermal annealing at various temperatures and times. The embrittlement behavior of the metallic glasses was compared with the crystallization and structural relaxation behavior estimated by kinetic calculation. In the present study, we have clarified as follows, (1) The Zr55Cu30Al10Ni5 metallic glass becomes brittle with precipitation of crystal, and the behavior agrees with the kinetic calculation of crystallization. (2) The Ti47.4Cu 42Zr5.3Ni5.3 metallic glass is embrittled with structural relaxation, and the behavior agrees with the kinetic calculation using DSC-heat flow of glass transition. (3) The Ti47.4Cu 42Zr5.3TM5.3(TMCo, Fe) metallic glasses are also embrittled with structural relaxation, although embrittlement behavior of these glasses is influenced more sensitively by the structural relaxation compared with the Ti47.4Cu42Zr5.3Ni 5.3metallic glass.
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U2 - 10.1088/1742-6596/144/1/012003
DO - 10.1088/1742-6596/144/1/012003
M3 - Article
AN - SCOPUS:64549109808
VL - 144
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
M1 - 012003
ER -