POSSIBLE FACTORS AFFECTING THE BRITTLENESS OF THE INTERMETALLIC COMPOUND TIAL .2. PEIERLS MANYVALLEY RELIEF

被引：142

作者：

GREENBERG, BF

ANISIMOV, VI

GORNOSTIREV, YN

TALUTS, GG

机构：

[1] USSR Acad of Sciences, Sverdlovsk, USSR, USSR Acad of Sciences, Sverdlovsk, USSR

来源：

SCRIPTA METALLURGICA | 1988年 / 22卷 / 06期

关键词：

TITANIUM METALLOGRAPHY - Lattice Defects;

D O I：

10.1016/S0036-9748(88)80064-4

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Models are proposed which account for the brittleness of the TiAl intermetallic. One of these models is based on the transformation of a glissile superdislocation into sessile non-planar configurations. The other is associated with the high Peierls stress that arises from directional bonds between Ti atoms. An adequate model should explain also the yield point temperature peak observed in TiAl. It has not yet been possible to choose an appropriate model on the basis of the experimental data available.

引用

页码：859 / 864

页数：6

共 7 条

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[2]

ANISIMOV VI, 1987, FIZ MET METALLOVED+, V63, P414

[3]

[Anonymous], ELECTRONIC STRUCTURE

[4] POSSIBLE FACTORS AFFECTING THE BRITTLENESS OF THE INTERMETALLIC COMPOUND TIAL .1. TRANSFORMATIONS OF DISLOCATIONS TO NON-PLANAR CONFIGURATIONS [J].

GREENBERG, BA ;

GORNOSTIREV, YN .

SCRIPTA METALLURGICA, 1988, 22 (06) :853-857

[5]

GREENBERG BA, 1987, PRISMA JTF, V13, P577

[6] NATURE AND DISSOCIATION OF THE DISLOCATIONS IN TIAL DEFORMED AT ROOM-TEMPERATURE [J].

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PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1986, 54 (01) :47-65

[7]

KAWABATA T, 1985, ACTA METALL, V33, P1335

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