Mechanisms of deformation-induced destruction of long-range order related to the generation of antiphase boundaries and point defects in alloys with the L12 superstructure

被引：0

作者：

Starenchenko, VA ^{[1
]}

Pantyukhova, OD ^{[1
]}

Starenchenko, SV ^{[1
]}

Kolupaeva, SN ^{[1
]}

机构：

[1] Tomsk State Univ Architecture & Civil Engn, Tomsk 634003, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2001年 / 91卷 / 01期

关键词：

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Destruction of long-range order because of the generation of antiphase boundaries (APBs) and point defects in the ordered alloy in the process of plastic deformation is considered. A relationship is obtained that permits one to estimate the changes in the average value of the long-ranee order parameter (as determined by X-ray scattering) that are related to the multiplication of APBs. Estimates are given For the intensity of multiplication of APBs for the mechanisms related to (a) the deformation-induced multiplication of thermal APBs; (b) the generation of APB tubes by jogs moving conservatively along screw dislocations; and (c) climb of edge superdislocations. Changes in the degree of long-range order are considered that are related to the introduction ("deposition") of interstitial atoms generated by deformation into vacant sites. Correspondingly, intensities are estimated of changes in the long-range order parameter in alloys with the L1(2) superstructure upon plastic deformation.

引用

页码：85 / 93

页数：9

共 19 条

[1] ABZAEV YA, 1987, IZV VUZ FIZ, P65
[2] Friedel J., 1964, Dislocations, DOI DOI 10.1016/C2013-0-02250-5
[3] Gorelik S.S., 1970, X-Ray and Electro-Optical Analysis
[4] KONEVA NA, 1973, IZV VUZ FIZ+, P136
[5] KOSEVICH AM, 1978, DISLOKATSII TEORII U
[6] ORDER-DISORDER TRANSFORMATION IN CO30PT70 ALLOY - EVIDENCE OF WETTING FROM THE ANTIPHASE BOUNDARIES
LEROUX, C
LOISEAU, A
CADEVILLE, MC
BRODDIN, D
VANTENDELOO, G
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (15) : 3479 - 3495
[7] POPOV LE, 1978, IZV VUZ FIZ+, P90
[8] POPOV LE, 1984, PLASTICHESKAYA DEFOR
[9] POPOV LE, 1966, IZV VUZ FIZ, P55
[10] Smirnov A. A., 1966, MOLEKULYARNO KINETIC

← 1 2 →