Fatigue Crack Growth Characterisation of RAFM Steel using Acoustic Emission Technique

被引：10

作者：

Babu, M. Nani ^{[1
]}

Mukhopadhyay, C. K. ^{[1
]}

Sasikala, G. ^{[1
]}

Dutt, B. Shashank ^{[1
]}

Venugopal, S. ^{[1
]}

Albert, Shaju K. ^{[1
]}

Bhaduri, A. K. ^{[1
]}

Jayakumar, T. ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Met & Mat Grp, Kalpakkam 603102, Tamil Nadu, India

来源：

6TH INTERNATIONAL CONFERENCE ON CREEP, FATIGUE AND CREEP-FATIGUE INTERACTION | 2013年 / 55卷

关键词：

RAFM Steels; fatigue crack growth rate; crack closure; acoustic emission; PROPAGATION;

D O I：

10.1016/j.proeng.2013.03.321

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This investigation was aimed to understand the different sub-stages seen by the crack during fatigue crack growth in Paris and threshold regimes using acoustic emission technique (AET). The AE signatures obtained from continuous monitoring during the entire test in different regimes of ECG curve have been examined. AE activity measured as counts per cycle and energy per cycle indicates discontinuities corresponding to (1) change from plane stress to plane strain condition, (2) onset of crack closure and (3) intergranular cracking in the transition regime. (C) 2013 The Authors. Published by Elsevier Ltd.

引用

页码：722 / 726

页数：5

共 12 条

[1]

[Anonymous], 2010, E647081 ASTM

[2] DETECTION OF FATIGUE-CRACK PROPAGATION WITH ACOUSTIC-EMISSION [J].

BASSIM, MN .

NDT & E INTERNATIONAL, 1992, 25 (06) :287-289

[3] STUDY OF FATIGUE-CRACK CHARACTERISTICS BY ACOUSTIC-EMISSION [J].

BERKOVITS, A ;

FANG, DN .

ENGINEERING FRACTURE MECHANICS, 1995, 51 (03) :401-&

[4] Fatigue crack growth mechanism in aged 9Cr-1Mo steel: threshold and Paris regimes [J].

Chaswal, V ;

Sasikala, G ;

Ray, SK ;

Mannan, SL ;

Raj, B .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 395 (1-2) :251-264

[5]

Elber W., 1970, Engineering Fracture Mechanics, V2, P37, DOI 10.1016/0013-7944(70)90028-7

[6] CONTINUOUS MONITORING OF FATIGUE-CRACK GROWTH BY ACOUSTIC-EMISSION TECHNIQUES [J].

HARRIS, DO ;

DUNEGAN, HL .

EXPERIMENTAL MECHANICS, 1974, 14 (02) :71-81

[7] ACOUSTIC-EMISSION MEASUREMENT OF FATIGUE-CRACK CLOSURE [J].

LEE, CS ;

RHYIM, YM ;

KWON, D ;

ONO, K .

SCRIPTA METALLURGICA ET MATERIALIA, 1995, 32 (05) :701-706

[8] Influence of microstructure on acoustic emission behavior during stage 2 fatigue crack growth in solution annealed, thermally aged and weld specimens of AISI type 316 stainless steel [J].

Moorthy, V ;

Jayakumar, T ;

Raj, B .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 212 (02) :273-280

[9] Mechanics and mechanisms of fatigue damage and crack growth in advanced materials [J].

Ritchie, RO ;

Gilbert, CJ ;

McNaney, JM .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2000, 37 (1-2) :311-329

[10] Fatigue life prediction based on crack propagation and acoustic emission count rates [J].

Roberts, TM ;

Talebzadeh, M .

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2003, 59 (06) :679-694

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