Microscopic and crystallographic aspects of retained omega phase in shock-loaded zirconium and its formation mechanism
Microscopic and crystallographic aspects of retained omega phase in shock-loaded zirconium and its formation mechanism
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DOI：
10.1080/01418619508244356
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发表时间：
1995-02
影响因子：
1.6
通讯作者：
S. Song;G. Gray
中科院分区：
文献类型：
--
作者：
S. Song;G. Gray
研究了纯Zr在冲击载荷下的α→ω相变产物。压力释放后ω相的一部分作为亚稳相保留。两相之间的取向关系(0001)α//(101l)ω和[1010]α//[112 3]ω与Zr中先前报道的取向关系不同。基于这种取向关系，提出了一种新的转化机制。在保留的ω相中观察到的缺陷结构与根据新机制预测的缺陷结构吻合良好。
Abstract The α→ω phase transformation products in shock-loaded pure Zr have been investigated. A portion of the ω phase is retained as a metastable phase after the pressure release. The orientation relationship (0001)α//(101l)ω and [1010]α//[112 3]ω observed between the two phases differs from those previously reported in Zr. Based on this orientation relationship a new transformation mechanism is proposed. The defect structures observed in the retained ω phase are in good agreement with those predicted according to the new mechanism.