Microstructure and mechanical properties of Mg-Zn-Ca-Ce alloy processed by semi-continuous casting
Microstructure and mechanical properties of Mg-Zn-Ca-Ce alloy processed by semi-continuous casting
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DOI：
10.1016/j.msea.2013.06.027
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发表时间：
2013-10-10
期刊：
影响因子：
6.4
通讯作者：
Lv, X. Y.
中科院分区：
文献类型：
--
作者：
Du, Y. Z.;Zheng, M. Y.;Lv, X. Y.
研究了用半连续铸造法制备的Mg-5.3Zn-0.2Ca-0.5Ce(wt%)合金的组织和性能。铸态合金由a=0.57 nm，b=0.75 nm，c=1.00 nm的a=0.57 nm，b=0.75 nm，C=1.00 nm的α-Mg，Ca2Mg6Zn3和T‘(1)相组成。T‘(1)相主要分布在三重结晶处，而Ca2Mg6Zn3相主要分布在晶界。铸态合金具有较高的强度保持率，这是由于晶界存在稳定的Ca2Mg6Zn3和T‘(1)相。(C)2013爱思唯尔B.V.保留所有权利。
The microstructures and mechanical properties of Mg-5.3Zn-0.2Ca-0.5Ce (wt%) alloy fabricated by semi-continuous casting were investigated. The as-cast alloy consists of alpha-Mg, Ca2Mg6Zn3 and T'(1) phase with orthorhombic structure (a=0.57 nm, b=0.75 nm and c=1.00 nm). T'(1) phase mainly distributes at the triple conjunctions while the Ca2Mg6Zn3 at the grain boundaries. The as-cast alloy exhibits high strength retention due to the stable Ca2Mg6Zn3 and T'(1) phase at the grain boundaries. (C) 2013 Elsevier B.V. All rights reserved.