Caution regarding ambiguities in similar expressions of orientation relationships

Caution regarding ambiguities in similar expressions of orientation relationships
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注意方向关系的类似表达中的歧义

DOI:
10.1107/s160057671502169x
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发表时间:
2016-02
影响因子:
6.1
通讯作者:
Shi Zhang-Zhi
Shi Zhang-Zhi
中科院分区:
材料科学3区
文献类型:
--
作者:
Du Juan;Zhang Wen-Zheng;Dai Fu-Zhi;Shi Zhang-Zhi

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两相间的取向关系是表征多相晶体材料微观结构的重要参数。在定义OR的众多方法中,在晶格平面之间和来自不同相的方向之间的平行度方面的表达式(被称为{hkl}/Hkuvw}表达式)是最常用的。然而,这种表达方案可能会产生误导,因为由于表达的相似性,完全不同的OR可能会被错误地视为等效OR。本文通过对平行元素对称性的分析,阐明了产生这三种情况的条件。也就是说,两个相似的表达式可以描述两个不同的OR,唯一OR的两个变体或完全相同的OR。这种分析不仅有助于避免由{hkl}/uvw表达式引起的歧义,而且还有助于指定如何相对于不同的基质相定义变体。根据分析结果,给出了不同基体相的Kurdjumow-Sachs和Nishiyama-Wassermann面心立方系统和体心立方系统的OR变量表达式。并结合赤平投影举例说明了不同的情况。
The orientation relationship (OR) between two phases is an essential parameter to characterize microstructure in multiphase crystalline materials. Among the numerous ways to define an OR, the expression in terms of the parallelism between lattice planes and between directions from different phases, referred to as the {hkl}/〈uvw〉 expression, is the most commonly used. However, this expression scheme may be misleading because completely different ORs could be mistakenly regarded as equivalent ORs owing to the similarity of the expressions. In this article, the symmetries of the parallel elements were analyzed to clarify the conditions causing three cases. Namely, two similar expressions may describe two different ORs, two variants of a unique OR or exactly the same OR. This analysis helps not only to avoid ambiguities caused by the {hkl}/〈uvw〉 expression but also to specify how variants are defined with respect to a different matrix phase. Based on the result of the analysis, the expressions of variants for the Kurdjumow–Sachs and Nishiyama–Wassermann ORs between face-centred cubic and body-centred cubic systems for different matrix phases are provided. Examples are given together with stereographic projections to demonstrate different cases.
DOI: 10.1016/s1359-6462(97)00395-3
发表时间: 1997-12
期刊: Scripta Materialia
影响因子: 6
作者:
Mingxing Zhang;P. Kelly
通讯作者: Mingxing Zhang;P. Kelly
DOI: 10.1016/s0036-9748(88)80339-9
发表时间: 1988
期刊: Scripta Metallurgica
影响因子: --
作者:
S. W. Thompson;P. Howell
通讯作者: S. W. Thompson;P. Howell
DOI: 10.1016/0001-6160(62)90108-6
发表时间: 1962-09
期刊: Acta Metallurgica
影响因子: --
作者:
W. Pitsch
通讯作者: W. Pitsch
DOI: 10.1016/s1359-6454(01)00014-3
发表时间: 2001-07
期刊: Acta Materialia
影响因子: 9.4
作者:
Y. Wen;Long-Qing Chen;P. Hazzledine;Y. Wang
通讯作者: Y. Wen;Long-Qing Chen;P. Hazzledine;Y. Wang
DOI: 10.1107/s0021889895004067
发表时间: 1995-10
影响因子: 6.1
作者:
M. Humbert;F. Wagner;H. Moustahfid;C. Esling
通讯作者: M. Humbert;F. Wagner;H. Moustahfid;C. Esling