ANTIPHASE BOUNDARY ENERGIES AND THE TRANSITION FROM SHEARING TO LOOPING IN ALLOYS STRENGTHENED BY ORDERED PRECIPITATES

被引：38

作者：

ARDELL, AJ

HUANG, JC

机构：

[1] Univ of California, Los Angeles, CA,, USA, Univ of California, Los Angeles, CA, USA

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1988年 / 58卷 / 04期

关键词：

METALS AND ALLOYS - Microstructure - NICKEL ALUMINUM ALLOYS - Deformation;

D O I：

10.1080/09500838808214752

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The critical particle diameter for the transition from shearing to looping during deformation of alloys strengthened by strong ordered coherent precipitates is related to the antiphase boundary (APB) energy on the left brace 111 right brace plane of the precipitate phase. Theoretical analysis of this process predicts average APB energies of 0. 112 plus or minus 0. 030 and 0. 161 plus or minus 0. 024 J m** minus **2 for the delta prime (Al//3Li) and gamma PRM (Ni//3Al) phases respectively. The value for the delta PRM phase is about 25% lower than those determined by nearly all other methods, while that for the gamma PRM phase is about 15% higher.

引用

页码：189 / 197

页数：9

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