Identifiying creep mechanisms at low stresses

被引：128

作者：

Langdon, TG ^{[1
]}

机构：

[1] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 283卷 / 1-2期

关键词：

creep; denuded zones; diffusion creep; grain boundary sliding; Harper-Dorn creep;

D O I：

10.1016/S0921-5093(00)00624-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

There are three possible mechanisms occurring in high temperature creep at Low stresses: diffusion creep. Harper-Dorn creep and grain boundary sliding. This paper examines the characteristics of these three processes and proposes two sets of measurements that may be used to give an unambiguous identification of the dominant creep mechanism. The approach is applied to published creep data and new measurements are reported for a Me-0.55%Zr alloy which per permit a clear distinction between diffusion creep and grain boundary sliding. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：266 / 273

页数：8

共 48 条

[1] GRAIN-BOUNDARY SLIDING DURING DIFFUSIONAL CREEP [J].

AIGELTINGER, EH ;

GIFKINS, RC .

JOURNAL OF MATERIALS SCIENCE, 1975, 10 (11) :1889-1903

[2] A DISLOCATION NETWORK THEORY OF HARPER-DORN CREEP .1. STEADY-STATE CREEP OF MONOCRYSTALLINE AL [J].

ARDELL, AJ ;

LEE, SS .

ACTA METALLURGICA, 1986, 34 (12) :2411-2423

[3] HIGH TEMPERATURE LOW STRESS CREEP OF AL AND AL + 0.5 PERCENT FE [J].

BARRETT, CR ;

NIX, WD ;

MUEHLEISEN, EC .

MATERIALS SCIENCE AND ENGINEERING, 1972, 10 (01) :33-+

[4]

Bilde-Sorensen JB, 1999, CREEP BEHAVIOR OF ADVANCED MATERIALS FOR THE 21ST CENTURY, P441

[5] REFUTATION OF THE RELATIONSHIP BETWEEN DENUDED ZONES AND DIFFUSIONAL CREEP [J].

BILDESORENSEN, JB ;

SMITH, DA .

SCRIPTA METALLURGICA ET MATERIALIA, 1994, 30 (03) :383-386

[6]

Bird J.E., 1969, QUANTITATIVE RELATIO, P255

[7]

Blum W, 1999, PHYS STATUS SOLIDI A, V171, P467, DOI 10.1002/(SICI)1521-396X(199902)171:2<467::AID-PSSA467>3.0.CO

[8]

2-8

[9] IN DEFENSE OF DIFFUSIONAL CREEP [J].

BURTON, B ;

REYNOLDS, GL .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 191 (1-2) :135-141

[10] LIMITS OF LINEAR RELATION BETWEEN STRESS AND STRAIN RATE IN CREEP OF COPPER AND COPPER-ZINC ALLOYS [J].

BURTON, B ;

GREENWOO.GW .

ACTA METALLURGICA, 1970, 18 (12) :1237-&

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