Stress relaxation test: Issues in modelling and interpretation

被引：20

作者：

Krishnaswamy, Hariharan ^{[1
]}

Jain, Jayant ^{[2
]}

机构：

[1] Indian Inst Technol Madras, Mech Engn, Chennai 600036, Tamil Nadu, India

[2] Indian Inst Technol Delhi, Dept Mat Sci & Engn, New Delhi 110016, India

来源：

MANUFACTURING LETTERS | 2020年 / 26卷

关键词：

Repeated stress relaxation; Activation volume; Dislocation density; DISLOCATION VELOCITY; ACTIVATION VOLUME; DUCTILITY IMPROVEMENT; MOBILE DISLOCATIONS; STRAIN RELAXATION; DEFORMATION; TEMPERATURE; BEHAVIOR; DEPENDENCE; ALLOYS;

D O I：

10.1016/j.mfglet.2020.10.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The evolution of internal sub-structure during stress relaxation test complicates the estimation of rate dependent parameters. Some of the issues associated with the choice of appropriate model and its limitations are often ignored when inferring the results. In this paper, it is attempted to summarize the challenges present in modelling and interpreting the stress relaxation data. (C) 2020 Society of Manufacturing Engineers (SME). Published by Elsevier Ltd. All rights reserved.

引用

页码：64 / 68

页数：5

共 43 条

[1] Internal microstructure observation of enhanced grain-boundary sliding at room temperature in AZ31 magnesium alloy [J].

Ando, D. ;

Sutou, Y. ;

Koike, J. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 666 :94-99

[2] TEMPERATURE DEPENDENCE OF DISLOCATION VELOCITY - STRESS EXPONENT [J].

BALASUBRAMANIAN, N .

SCRIPTA METALLURGICA, 1969, 3 (01) :21-+

[3]

Bonneville J., 1995, High-Temperature Ordered Intermetallic Alloys VI. Symposium, P369

[4]

Caillard D, 2003, THERMALLY ACTICATED, V8

[5] Microstructural evolution and its influence on creep and stress relaxation in nanocrystalline Ni [J].

Cao, Z. H. ;

Wang, L. ;

Hu, K. ;

Huang, Y. L. ;

Meng, X. K. .

ACTA MATERIALIA, 2012, 60 (19) :6742-6754

[6] Mechanical Behavior and Deformation Kinetics of Aluminum Alloys Processed through Cryorolling and Subsequent Annealing [J].

Changela, Kandarp ;

Krishnaswamy, Hariharan ;

Digavalli, Ravi Kumar .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2020, 51 (02) :648-666

[7] RELATION BETWEEN DISLOCATION VELOCITY AND STRESS [J].

CHRISTIAN, JW .

SCRIPTA METALLURGICA, 1970, 4 (10) :811-+

[8] Ductility of 304 stainless steel under pulsed uniaxial loading [J].

Cullen, Graham W. ;

Korkolis, Yannis P. .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2013, 50 (10) :1621-1633

[9] ON THE USE OF LIS EQUATION IN STRESS-RELAXATION STUDIES [J].

DEMIRANDA, PEV ;

LEMAY, I ;

NEVESMONTEIRO, S .

SCRIPTA METALLURGICA, 1980, 14 (11) :1201-1205

[10] Activation volume in microcellular aluminium: Size effects in thermally activated plastic flow [J].

Diologent, F. ;

Goodall, R. ;

Mortensen, A. .

ACTA MATERIALIA, 2011, 59 (18) :6869-6879

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