TY - JOUR
T1 - Devitrification of Ni-based glassy alloys containing noble metals in relation with the supercooled liquid region
AU - Louzguine, Dmitri V.
AU - Inoue, Akihisa
PY - 2004/7/1
Y1 - 2004/7/1
N2 - The formation of the supercooled liquid region and devitrification behavior of Ni-based glassy alloys were studied by using X-ray diffraction, transmission electron microscopy, differential scanning calorimetry and isothermal calorimetry. oC68 Ni10Zr7-type phase is primarily formed in the studied alloys in the initial stage of the devitrification process by nucleation and three-dimensional diffusion controlled growth. The replacement of Cu by Ni in Cu55Zr30Ti10Pd5 glassy alloy induces precipitation of oC68 Ni10Zr7 phase directly from the glassy phase. The reasons for such a behavior are discussed taking into account mixing enthalpy in a liquid state and the interval of the supercooled liquid region.
AB - The formation of the supercooled liquid region and devitrification behavior of Ni-based glassy alloys were studied by using X-ray diffraction, transmission electron microscopy, differential scanning calorimetry and isothermal calorimetry. oC68 Ni10Zr7-type phase is primarily formed in the studied alloys in the initial stage of the devitrification process by nucleation and three-dimensional diffusion controlled growth. The replacement of Cu by Ni in Cu55Zr30Ti10Pd5 glassy alloy induces precipitation of oC68 Ni10Zr7 phase directly from the glassy phase. The reasons for such a behavior are discussed taking into account mixing enthalpy in a liquid state and the interval of the supercooled liquid region.
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U2 - 10.1016/j.jnoncrysol.2004.03.124
DO - 10.1016/j.jnoncrysol.2004.03.124
M3 - Article
AN - SCOPUS:2942516203
SN - 0022-3093
VL - 337
SP - 161
EP - 165
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 2
ER -