PLASTIC-DEFORMATION OF THE INTERMETALLIC AL3TI

被引：15

作者：

MORRIS, DG

LERF, R

机构：

[1] Institute of Structural Metallurgy, University of Neuchǎtel, Neuchǎtel

来源：

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1991年 / 63卷 / 06期

关键词：

D O I：

10.1080/01418619108205577

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Samples based on the intermetallic compound Al3Ti have been made by mechanical alloying the elemental components and sintering. Intense deformation of the compound was achieved by extrusion at 600-degrees-C and the mechanisms of deformation are examined. A major mode of deformation under such conditions is ordered twinning of the type [112]{111} which does not disturb the D0(22) order. Significant deformation also occurs by single 1/2[110] dislocation motion on (001) planes, as well as some deformation by the movement of perfect 1/2[112] dislocations. The analysis of dislocation configurations and determination of various fault energies provides useful information in the search for more ductile Al3X alloys based on the availability of mechanisms of plasticity.

引用

页码：1195 / 1206

页数：12

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