CRYSTALLOGRAPHY AND MORPHOLOGY OF NEEDLE-LIKE ALPHA-FE PRECIPITATE PARTICLES IN A CU MATRIX

被引：49

作者：

FUJII, T

MORI, T

KATO, M

机构：

[1] Department of Materials Science and Engineering, Tokyo Institute of Technology, 227, 4259 Nagatsuta, Midori-ku, Yokoyama

来源：

ACTA METALLURGICA ET MATERIALIA | 1992年 / 40卷 / 12期

关键词：

D O I：

10.1016/0956-7151(92)90055-J

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nearly spherical alpha-Fe precipitate particles in a Cu matrix grow and elongate to become needle-like by prolonged annealing of a Cu-Fe alloy. The elongated particles exhibit the Kurdjumov-Sachs orientation relationship to the Cu matrix. Depending on the Kurdjumov-Sachs variants, two distinct elongation directions (growth direction), one parallel to [110] and the other parallel to [19 16 3] of the Cu matrix, are observed. The detailed observation of the particle cross section has revealed that the particle-matrix interface consists of several facets of low-index habit planes. It is found that these crystallographic and morphological features can be explained excellently by adopting the recently developed geometrical criteria for interface crystallography.

引用

页码：3413 / 3420

页数：8

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