PRISMATIC GLIDE IN DIVALENT HCP METALS

被引：52

作者：

COURET, A ^{[1
]}

CAILLARD, D ^{[1
]}

PUSCHL, W ^{[1
]}

SCHOECK, G ^{[1
]}

机构：

[1] INST FESTKORPERPHYS,A-1090 VIENNA,AUSTRIA

来源：

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1991年 / 63卷 / 05期

关键词：

D O I：

10.1080/01418619108213936

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In situ transmission electron microscopy observations have been made in magnesium and beryllium of the glide process in the prismatic plane. The observations are in accordance with a jog-pair mechanism at high temperatures and a locking-unlocking cross-slip mechanism at low temperatures. Improved calculations of the corresponding activation energy and activation volume are reported which take full account of anisotropy. Agreement with the experimental values in Mg can only be reached when it is assumed that the log in the glide process has twice the elementary height.

引用

页码：1045 / 1057

页数：13

共 31 条

[1]

BACON DJ, 1978, PROG MATER SCI, V23, P51

[2] PRISMATIC SLIP IN BERYLLIUM .2. THE ORIGIN OF THE STRENGTH ANOMALY [J].

COURET, A ;

CAILLARD, D .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1989, 59 (04) :801-819

[3] PRISMATIC SLIP IN BERYLLIUM .1. THE CONTROLLING MECHANISM AT THE PEAK TEMPERATURE [J].

COURET, A ;

CAILLARD, D .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1989, 59 (04) :783-800

[4] AN INSITU STUDY OF PRISMATIC GLIDE IN MAGNESIUM .2. MICROSCOPIC ACTIVATION PARAMETERS [J].

COURET, A ;

CAILLARD, D .

ACTA METALLURGICA, 1985, 33 (08) :1455-1462

[5] MICROSCOPIC OBSERVATIONS OF GLIDE IN NON CLOSE-PACKED PLANES IN ALUMINUM, AND COMPARISON WITH MAGNESIUM [J].

COURET, A ;

CAILLARD, D .

ACTA METALLURGICA, 1988, 36 (09) :2515-2524

[6]

COURET A, 1989, THESIS U TOULOUSE

[7]

COURET A, 1985, ACTA METALL, V33, P447

[8]

COURET A, 1991, IN PRESS J PHYSIC, V3

[9]

Duesbery M.S., 1967, DISLOCATION DYNAMICS, P57

[10] THERMAL ACTIVATION OF DEVIATIONS IN WEAK STRESSES IN BCC AND HCP STRUCTURES [J].

ESCAIG, B .

PHYSICA STATUS SOLIDI, 1968, 28 (02) :463-&

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