γ → ε martensite transformation and twinning deformation in fcc cobalt during surface mechanical attrition treatment

被引：82

作者：

Wu, X ^{[1
]}

Tao, N

Hong, Y

Lu, J

Lu, K

机构：

[1] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China

[3] Univ Technol Troyes, LASMIS, F-10000 Troyes, France

来源：

SCRIPTA MATERIALIA | 2005年 / 52卷 / 07期

基金：

中国国家自然科学基金;

关键词：

martensite transformation; twinning; nanostructure; surface mechanical attrition treatment; cobalt;

D O I：

10.1016/j.scriptamat.2004.12.004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The deformation microstructure of face-centered cubic cobalt subjected to surface mechanical attrition treatment was studied as a function of strain levels. Strain-induced gamma --> epsilon transformation and twinning deformation were evidenced by transmission electron microscopy and were found to progress continuously in ultrafine and nanocrystalline grains as the strain increased. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：547 / 551

页数：5

共 24 条

[1]

[Anonymous], COBALT

[2]

Bibby MJ., 1963, COBALT, V20, P111

[3]

BIBRING H, 1958, I METALS, V87, P71

[4] Deformation twinning in nanocrystalline aluminum [J].

Chen, MW ;

Ma, E ;

Hemker, KJ ;

Sheng, HW ;

Wang, YM ;

Cheng, XM .

SCIENCE, 2003, 300 (5623) :1275-1277

[5] STACKING-FAULTS AND FCC (GAMMA)-]HCP (EPSILON) TRANSFORMATION IN 18-8-TYPE STAINLESS-STEEL [J].

FUJITA, H ;

UEDA, S .

ACTA METALLURGICA, 1972, 20 (05) :759-+

[6] THE EFFECTS OF DEFORMATION TWINS AND STRAIN-INDUCED EPSILON-MARTENSITE ON MECHANICAL-PROPERTIES OF AN FE-32MN-12CR-0.4C CRYOGENIC ALLOY [J].

HONG, SH ;

HAN, YS .

SCRIPTA METALLURGICA ET MATERIALIA, 1995, 32 (09) :1489-1494

[7]

HOUSKA CR, 1985, ACTA METALL, V33, P1293

[8] PHASE-TRANSFORMATION OF COBALT-INDUCED BY BALL-MILLING [J].

HUANG, JY ;

WU, YK ;

YE, HQ .

APPLIED PHYSICS LETTERS, 1995, 66 (03) :308-310

[9] Competing mechanisms and modeling of deformation in austenitic stainless steel single crystals with and without nitrogen [J].

Karaman, I ;

Sehitoglu, H ;

Maier, HJ ;

Chumlyakov, YI .

ACTA MATERIALIA, 2001, 49 (19) :3919-3933

[10] Optimization of strength and ductility in nanocrystalline and ultrafine grained metals [J].

Koch, CC .

SCRIPTA MATERIALIA, 2003, 49 (07) :657-662

← 1 2 3 →