Ratcheting strain in interstitial free steel

被引：46

作者：

Dutta, Krishna ^{[1
]}

Ray, K. K. ^{[2
]}

机构：

[1] Natl Inst Technol, Dept Met & Mat Engn, Rourkela 769008, India

[2] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 575卷

关键词：

Ratcheting; Interstitial free steel; Substructure; Tensile strength; LOW-CYCLE FATIGUE; 316L STAINLESS-STEEL; DEFORMATION-BEHAVIOR; ROOM-TEMPERATURE; CARBON-STEEL; MEAN STRESS; AISI; 316L; PLASTICITY; FAILURE; MODELS;

D O I：

10.1016/j.msea.2013.02.052

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This investigation illustrates ratcheting phenomenon, in-situ substructural variations during ratcheting and post-ratcheting tensile properties of interstitial free steel at ambient temperature (approximate to 300 K). The results highlight that the nature of strain accumulation is dependent on the magnitude of the employed combinations of mean stress (sigma(m)) and stress amplitude (sigma(a)); this phenomenon has been explained considering the asymmetry of loading cycles and substructural variations as delineated by TEM. Tensile strength increases while ductility decreases for ratcheted samples with increasing sigma(m) and/or sigma(a) and these variations in tensile properties are correlated with the induced cyclic hardening. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：127 / 135

页数：9

共 39 条

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