TY - GEN
T1 - Effects of Y on the microstructure and mechanical properties of Mg-Zn-Y-Zr magnesium alloys
AU - Wang, Dayu
AU - Du, Zhiming
AU - Zhang, Hongjuan
AU - Chen, Lihua
AU - Wang, Changshun
N1 - Publisher Copyright:
© 2017 Trans Tech Publications, Switzerland.
PY - 2017
Y1 - 2017
N2 - Mg-Zn-Zr-Y billets with different mass fraction of Y (wt%(Y)=0.2%, 0.5%, 1.0%, 1.5%, 2.0%) was prepared by permanent mold casting. The increase in Y content has shown grain refinement effects on the microstructure morphologies of Mg–Zn–Y–Zr alloys. When the content of Y achieves 1.0 wt%, the grain refinement effect of the Y is most obvious than any more contents of the Y content. In the test result of XRD, the type of precipitated phase in Mg-Zn-Zr-Y alloys is related to atomic ratio of Y/Zn. With content of Y increases, atomic ratio of Y/Zn increases,the precipitated phase in alloy is changed from Phase I to Phase W. Tensile strength and extension rate of alloy increase with the increasing of Y content; When Y content reaches 1.0%, mechanical property reaches maximum value. When content of Y exceeds 1.0%, with the increasing of Y content, mechanical property of alloy declines gradually.
AB - Mg-Zn-Zr-Y billets with different mass fraction of Y (wt%(Y)=0.2%, 0.5%, 1.0%, 1.5%, 2.0%) was prepared by permanent mold casting. The increase in Y content has shown grain refinement effects on the microstructure morphologies of Mg–Zn–Y–Zr alloys. When the content of Y achieves 1.0 wt%, the grain refinement effect of the Y is most obvious than any more contents of the Y content. In the test result of XRD, the type of precipitated phase in Mg-Zn-Zr-Y alloys is related to atomic ratio of Y/Zn. With content of Y increases, atomic ratio of Y/Zn increases,the precipitated phase in alloy is changed from Phase I to Phase W. Tensile strength and extension rate of alloy increase with the increasing of Y content; When Y content reaches 1.0%, mechanical property reaches maximum value. When content of Y exceeds 1.0%, with the increasing of Y content, mechanical property of alloy declines gradually.
KW - Magnesium alloys
KW - Mechanical properties
KW - Precipitated phase
KW - Y ttrium
UR - https://www.scopus.com/pages/publications/85028970537
U2 - 10.4028/www.scientific.net/MSF.904.29
DO - 10.4028/www.scientific.net/MSF.904.29
M3 - 会议稿件
AN - SCOPUS:85028970537
SN - 9783035711929
T3 - Materials Science Forum
SP - 29
EP - 35
BT - Metallurgy Technology and Materials V - 5th ICMTM
A2 - Harun, Zawati
PB - Trans Tech Publications Ltd
T2 - 5th International Conference on Metallurgy Technology and Materials, ICMTM 2017
Y2 - 15 April 2017 through 16 April 2017
ER -