Quantifying microstructurally small fatigue crack growth in an aluminum alloy using a silicon-rubber replica method

被引：50

作者：

Jordon, J. B. ^{[1
]}

Bernard, J. D. ^{[2
]}

Newman, J. C., Jr. ^{[3
]}

机构：

[1] Univ Alabama, Dept Mech Engn, Tuscaloosa, AL 35487 USA

[2] Mississippi State Univ, CAVS, Mississippi State, MS 39762 USA

[3] Mississippi State Univ, Dept Aerosp Engn, Mississippi State, MS 39762 USA

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2012年 / 36卷 / 01期

关键词：

Fatigue; Small cracks; Replica; Aluminum alloy; 7075-T651;

D O I：

10.1016/j.ijfatigue.2011.07.016

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A variation of the replica method is presented for quantifying microstructurally small fatigue crack growth rates in a rolled aluminum alloy. Repliset (R), a two-part silicon-rubber compound, was employed to make surface impressions on notched specimens subjected to interrupted cyclic loading. Employing the high resolution capability of the scanning electron microscope, this replication method characterized fatigue crack growth rates of the 7075-T651 aluminum alloy for cracks as small as 10 mu m in length. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：206 / 210

页数：5

共 15 条

[1]

Brown C.W., 1982, ADV CRACK LENGTH MEA, P41

[2] Environmentally influenced microstructurally small fatigue crack growth in cast magnesium [J].

Gall, K ;

Biallas, G ;

Maier, HJ ;

Horstemeyer, ME ;

McDowell, DL .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 396 (1-2) :143-154

[3] ELECTRICAL POTENTIAL MONITORING OF CRACK FORMATION AND SUBCRITICAL GROWTH FROM SMALL DEFECTS [J].

GANGLOFF, RP .

FATIGUE OF ENGINEERING MATERIALS AND STRUCTURES, 1981, 4 (01) :15-33

[4]

JORDON JB, 2009, MAT SCI ENG A-STRUCT, V15, P169

[5] An engineering model for propagation of small cracks in fatigue [J].

McDowell, DL .

ENGINEERING FRACTURE MECHANICS, 1997, 56 (03) :357-377

[6] Fatigue crack initiation and growth behavior of Ti-6Al-4V under non-proportional multiaxial loading [J].

Nakamura, H. ;

Takanashi, M. ;

Itoh, T. ;

Wu, M. ;

Shimizu, Y. .

INTERNATIONAL JOURNAL OF FATIGUE, 2011, 33 (07) :842-848

[7]

NEWMAN JC, 2008, AG AIRCR C PHOEN AZ

[8] Replica-based crack inspection [J].

Newman, John A. ;

Willard, Scott A. ;

Smith, Stephen W. ;

Piascik, Robert S. .

ENGINEERING FRACTURE MECHANICS, 2009, 76 (07) :898-910

[9]

Newman Jr J. C., 1988, AGARD Report No. 732

[10]

Newman Jr J. C., 1994, NASA Reference Publication, V1309

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