TY - JOUR
T1 - Atmospheric and milling-device effects on the activation energy for crystallization of a partially amorphized Ni-Mo alloy
AU - Martínez-Sánchez, R.
AU - Estrada-Guel, I.
AU - Jaramillo-Vigueras, D.
AU - De La Torre, S. D.
AU - Gaona-Tiburcio, C.
AU - Guerrero-Paz, J.
PY - 2002
Y1 - 2002
N2 - The Ni-Mo system processed through mechanical alloying (MA) technique has been widely investigated. For the composition Mo-47 at % Ni partially amorphous phase was obtained after 36 h milling time. Fe contamination was detected in the samples milled in a stainless steel container. Longer milling times have an important effect in the crystallization temperature. The peak temperature was shifted to lower temperatures as increases the milling time. Milling device, milling container, Fe and oxygen have an important effect in the rate of amorphization and in the activation energy (Q) for crystallization. Q values for samples milled under air atmosphere are lower than those observed in samples milled in argon atmosphere.
AB - The Ni-Mo system processed through mechanical alloying (MA) technique has been widely investigated. For the composition Mo-47 at % Ni partially amorphous phase was obtained after 36 h milling time. Fe contamination was detected in the samples milled in a stainless steel container. Longer milling times have an important effect in the crystallization temperature. The peak temperature was shifted to lower temperatures as increases the milling time. Milling device, milling container, Fe and oxygen have an important effect in the rate of amorphization and in the activation energy (Q) for crystallization. Q values for samples milled under air atmosphere are lower than those observed in samples milled in argon atmosphere.
KW - Activation energy
KW - Mechanical alloying MA
KW - Ni-Mo alloys
KW - Partial amorphisation
UR - http://www.scopus.com/inward/record.url?scp=0036174262&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/msf.386-388.135
DO - 10.4028/www.scientific.net/msf.386-388.135
M3 - Artículo de la conferencia
AN - SCOPUS:0036174262
SN - 0255-5476
VL - 386-388
SP - 135
EP - 140
JO - Materials Science Forum
JF - Materials Science Forum
T2 - Proceedings of the International Symposium on Metastable, Mechanically Alloyed and Noncrystalline Materials (ISMANAM)
Y2 - 24 June 2001 through 29 June 2001
ER -