TY - GEN
T1 - High mechanical properties of cast quasicrystal-reinforced Mg-Alloys
AU - Yuan, Guangyin
AU - Ding, Wenjiang
AU - Amiya, Kenji
AU - Kato, Hidemi
AU - Inoue, Akihisa
PY - 2005/1/1
Y1 - 2005/1/1
N2 - Mg-8Zn-4Al-xY base alloys containing an icosahedral quasicrystal phase (i-phase) as a main strengthening phase were prepared by casting into a copper mould at moderate cooling rates. The Y addition was effective for decreasing the size of i-phase and the more homogeneousness of its dispersed state. The mechanical properties at room temperature were much superior to those of AZ91 alloy. The creep tests indicated a promising high temperature creep resistance of the quasicrystal-reinforced Mg-Zn-Al-Y cast alloy. The dislocation characteristic in crept specimens which containing i-phase and no i-phase was analyzed and strengthening mechanism was discussed.
AB - Mg-8Zn-4Al-xY base alloys containing an icosahedral quasicrystal phase (i-phase) as a main strengthening phase were prepared by casting into a copper mould at moderate cooling rates. The Y addition was effective for decreasing the size of i-phase and the more homogeneousness of its dispersed state. The mechanical properties at room temperature were much superior to those of AZ91 alloy. The creep tests indicated a promising high temperature creep resistance of the quasicrystal-reinforced Mg-Zn-Al-Y cast alloy. The dislocation characteristic in crept specimens which containing i-phase and no i-phase was analyzed and strengthening mechanism was discussed.
KW - High-temperature creep
KW - Mechanical properties
KW - Mg alloys
KW - Quasicrystals
UR - http://www.scopus.com/inward/record.url?scp=35148886439&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=35148886439&partnerID=8YFLogxK
U2 - 10.4028/0-87849-968-7.127
DO - 10.4028/0-87849-968-7.127
M3 - Conference contribution
AN - SCOPUS:35148886439
SN - 0878499687
SN - 9780878499687
T3 - Materials Science Forum
SP - 127
EP - 130
BT - Magnesium - Science, Technology and Applications, Mg - Proceedings of the International Conference on Magnesium - Science, Technology and Applications
PB - Trans Tech Publications Ltd
T2 - International Conference on Magnesium - Science, Technology and Applications
Y2 - 20 September 2004 through 24 September 2004
ER -