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首页> 外文会议>International Symposium on Designing, Processing and Properties of Advanced Engineering Materials(ISAEM 2003) pt.1; 20031105-20031108; Jeju Island; KR >Precipitation Behavior of Mg-Y-Nd-Zr Alloy
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Precipitation Behavior of Mg-Y-Nd-Zr Alloy

机译：Mg-Y-Nd-Zr合金的析出行为

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The precipitation behavior of Mg-Y-Nd-Zr alloy was investigated by using transmission electron microscopy. The precipitation sequence of Mg-Y-Nd-Zr alloy was confirmed as follows ; Supersaturated solid solution→ β″ → β′→ β. The β″ phase was identified Mg_3Nd having DO_(19) structure with the lattice constant of a = 2a_(Mg) = 0.64nm and c = C_(Mg) = 0.52nm. The β′ precipitate was identified as Mg_(12)NdY having base centered orthorhombic structure with the lattice constants a, b and c of 0.64, 2.23 and 0.52 nm, respectively. The β phase was confirmed as equilibrium phase having the fcc structure with the lattice constant of a = 2.22 nm.
机译：利用透射电子显微镜研究了Mg-Y-Nd-Zr合金的析出行为。 Mg-Y-Nd-Zr合金的析出顺序如下：过饱和固溶体→β″→β′→β。 β”相被鉴定为具有DO_（19）结构的Mg_3Nd，其晶格常数为a ＝ 2a_（Mg）＝ 0.64nm和c ＝ C_（Mg）＝ 0.52nm。 β'沉淀被鉴定为具有碱心正交结构的Mg_（12）NdY，其晶格常数a，b和c分别为0.64、2.23和0.52nm。确认β相为具有fcc结构且晶格常数为a ＝ 2.22nm的平衡相。

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