The anomalous diffusion processes "dissolution-precipitation" of THE γ′ Phase Ni3Al in AN Fe-Ni-Al alloy during low-temperature deformation

被引：14

作者：

Sagaradze, V. V. ^{[1
]}

Shabashov, V. A. ^{[1
]}

Kataeva, N. V. ^{[1
]}

Kozlov, K. A. ^{[1
]}

Kuznetsov, A. R. ^{[1
]}

Litvinov, A. V. ^{[1
]}

机构：

[1] RAS, Mikheev Inst Met Phys, Ural Branch, Ekaterinburg 620990, Russia

来源：

MATERIALS LETTERS | 2016年 / 172卷

基金：

俄罗斯科学基金会;

关键词：

Fe-Ni-Al austenite; Intermetallics; Deformation-induced dissolution; Cryogenic temperatures; Mossbauer spectroscopy; SEVERE PLASTIC-DEFORMATION; SEVERE COLD DEFORMATION; HIGH-PRESSURE TORSION; IRON; TRANSFORMATIONS; DISLOCATIONS; KINETICS; FIELD;

D O I：

10.1016/j.matlet.2015.11.078

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An anomalous deformation-induced dissolution of the intermetallics Ni3Al in the matrix of austenitic Fe-Ni-Al alloy has been revealed in experiment at cryogenic temperatures (down to 77 K) under high pressure torsion. The observed phenomenon is explained as the result of deformation-stipulated migration of interstitial atoms from a particle into the matrix in the stress field of moving dislocations. With increasing the temperature of deformation, the dissolution is replaced by the deformation-induced precipitation of the intermetallics, which is accelerated due to a sufficient amount of point defects in the matrix, gained as well in the course of deformation at lower temperatures. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：207 / 210

页数：4

共 40 条

[1]

Belous M.V., 1961, FIZ MET METALLOVED, V12, P685

[2] MECHANICAL ALLOYING [J].

BENJAMIN, JS .

SCIENTIFIC AMERICAN, 1976, 234 (05) :40-49

[3] MARTENSITE LATTICE CHANGES DURING TEMPERING [J].

CHEN, PC ;

WINCHELL, PG .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1980, 11 (08) :1333-1339

[4] Multiscale modeling of crowdion and vacancy defects in body-centered-cubic transition metals [J].

Derlet, P. M. ;

Nguyen-Manh, D. ;

Dudarev, S. L. .

PHYSICAL REVIEW B, 2007, 76 (05)

[5] Extreme grain refinement by severe plastic deformation: A wealth of challenging science [J].

Estrin, Y. ;

Vinogradov, A. .

ACTA MATERIALIA, 2013, 61 (03) :782-817

[6]

Gavrilyuk V. G., 1987, DISTRIBUTION CARBON, p20R

[7] SHAPE CHANGE OF PRECIPITATES BY DIFFUSION IN STRESS FIELD OF DISLOCATIONS [J].

GLEITER, H .

ACTA METALLURGICA, 1968, 16 (03) :455-&

[8] Nanoindentation and mechanical properties of solids in submicrovolumes, thin near-surface layers, and films: A Review [J].

Golovin, Yu. I. .

PHYSICS OF THE SOLID STATE, 2008, 50 (12) :2205-2236

[9]

INDENBOM VL, 1970, PISMA ESKP TEOR FIZ, V12, P469

[10] Crowdion mobility and self-focusing in 3D and 2D nickel [J].

Iskandarov, A. M. ;

Medvedev, N. N. ;

Zakharov, P. V. ;

Dmitriev, S. V. .

COMPUTATIONAL MATERIALS SCIENCE, 2009, 47 (02) :429-431

← 1 2 3 4 →