The effects of strain rate and carbon concentration on the dynamic strain aging of cold rolled Ni-based alloy in high temperature water

被引：26

作者：

Kuang, Wenjun ^{[1
]}

Was, Gary S. ^{[1
]}

机构：

[1] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA

来源：

SCRIPTA MATERIALIA | 2015年 / 107卷

关键词：

Cold rolling; Slow strain rate tensile test; Nickel alloys; Dynamic strain aging; Portevin-Le Chatelier effect; PERCENT-MG ALLOY; RATE SENSITIVITY; SERRATED FLOW; DEFORMATION; KINETICS; STEEL;

D O I：

10.1016/j.scriptamat.2015.05.033

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of strain rate on dynamic strain aging of cold-rolled Ni-based alloy was investigated. With decreasing strain rate, the stress amplitude of serrations first increased and then saturated. Compared with the solution-annealed condition, the thermally-treated condition produced smaller stress amplitudes that saturated at a lower strain rate. Observations are consistent with a mechanism in which the locking strength of solute atmospheres first increases with increasing solute atom arrival at dislocations and gradually saturates as solute reaches a critical level. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：107 / 110

页数：4

共 18 条

[1]

Angeliu T., 1991, P 5 INT C ENV DEGR M

[2]

Attanasio SA, 1999, PROCEEDINGS OF THE NINTH INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL DEGRADATION OF MATERIALS IN NUCLEAR POWER SYSTEMS-WATER REACTORS, P49

[3] The kinetics of the Portevin-Le Chatelier bands in an Al-5at%Mg alloy [J].

CHIHAB, K ;

ESTRIN, Y ;

KUBIN, LP ;

VERGNOL, J .

SCRIPTA METALLURGICA, 1987, 21 (02) :203-208

[4] Influence of Strain Rate and Temperature on Tensile Deformation and Fracture Behavior of Type 316L(N) Austenitic Stainless Steel [J].

Choudhary, B. K. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2014, 45A (01) :302-316

[5] Influence of strain rate and temperature on serrated flow in 9Cr-1Mo ferritic steel [J].

Choudhary, B. K. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 564 :303-309

[6] DISLOCATION THEORY OF YIELDING AND STRAIN AGEING OF IRON [J].

COTTRELL, AH ;

BILBY, BA .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION A, 1949, 62 (349) :49-62

[7] SOME ASPECTS OF SERRATED YIELDING IN SUBSTITUTIONAL SOLID-SOLUTIONS OF IRON [J].

CUDDY, LJ ;

LESLIE, WC .

ACTA METALLURGICA, 1972, 20 (10) :1157-&

[8] DISCONTINUOUS DEFORMATION IN AL-MG ALLOYS UNDER VARIOUS CONDITIONS [J].

FUJITA, H ;

TABATA, T .

ACTA METALLURGICA, 1977, 25 (07) :793-800

[9] Dynamic strain ageing in Ni-base superalloy 720Li [J].

Gopinath, K. ;

Gogia, A. K. ;

Kamat, Sn. ;

Ramamurty, U. .

ACTA MATERIALIA, 2009, 57 (04) :1243-1253

[10]

Hanninen H., 2005, P 12 INT C ENV DEGR, P1317

← 1 2 →