Fatigue crack growth behaviour of pulsed current gas tungsten arc, friction stir and laser beam welded AZ31B magnesium alloy joints

被引：28

作者：

Padmanaban, G. ^{[1
]}

Balasubramanian, V. ^{[1
]}

Reddy, G. Madhusudhan ^{[2
]}

机构：

[1] Annamalai Univ, Ctr Mat Joining & Res CEMAJOR, Dept Mfg Engn, Annamalainagar 608002, Tamil Nadu, India

[2] Def Met Res Lab, Solidificat Technol Div, Met Joining Grp, Hyderabad 500058, Andhra Pradesh, India

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2011年 / 211卷 / 07期

关键词：

Fatigue crack growth; Magnesium alloy; Welded joints; Residual stress; TENSILE PROPERTIES; ALUMINUM-ALLOY; MICROSTRUCTURE; INDUSTRY; FRACTURE;

D O I：

10.1016/j.jmatprotec.2011.02.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The laser beam welded joints offered better resistance against the growing fatigue cracks compared to friction stir welded and pulsed current gas tungsten arc welded AZ31B magnesium alloy joints. The formation of very fine grains in weld region, higher fusion zone hardness, uniformly distributed fine precipitates and favourable residual stress field of the weld region are the main reasons for superior fatigue performance of laser beam welded joints of AZ31B magnesium alloy. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1224 / 1233

页数：10

共 20 条

[1] Microstructure and tensile properties of friction stir welded AZ31B magnesium alloy [J].

Afrin, N. ;

Chen, D. L. ;

Cao, X. ;

Jahazi, M. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 472 (1-2) :179-186

[2]

BORREGO PL, 2001, J FRACT ENG MAT STRU, V24, P255

[3]

Bucci R.J., 1981, Fracture Mechanics, ASTM STP, V743, P28

[4] Fatigue behaviour of friction stir processed AZ91 magnesium alloy produced by high pressure die casting [J].

Cavaliere, P. ;

De Marco, P. P. .

MATERIALS CHARACTERIZATION, 2007, 58 (03) :226-232

[5] The evaluation of weldability for AZ31B-H24 and AZ91C-F Mg alloys in friction stir welding [J].

Chang, Woong-Seong ;

Kim, Heung-Ju ;

Noh, Joong-Suk ;

Bang, Han-Sur .

ADVANCED NONDESTRUCTIVE EVALUATION I, PTS 1 AND 2, PROCEEDINGS, 2006, 321-323 :1723-1728

[6] Microstructure and mechanical properties of magnesium alloy AZ31B laser beam welds [J].

Coelho, R. S. ;

Kostka, A. ;

Pinto, H. ;

Riekehr, S. ;

Kocak, M. ;

Pyzalla, A. R. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 485 (1-2) :20-30

[7] A study of small crack growth in aluminum alloy 7075-T6 [J].

Donnelly, E ;

Nelson, D .

INTERNATIONAL JOURNAL OF FATIGUE, 2002, 24 (11) :1175-1189

[8] Magnesium science, technology and applications [J].

Eliezer, D ;

Aghion, E ;

Froes, FH .

ADVANCED PERFORMANCE MATERIALS, 1998, 5 (03) :201-212

[9]

ERIPRET C, 1994, ESIS PUBL, V17, P685

[10] A NEW FRACTURE-MECHANICS METHOD TO PREDICT THE FATIGUE LIFE OF WELDED CRUCIFORM JOINTS [J].

GUHA, B .

ENGINEERING FRACTURE MECHANICS, 1995, 52 (02) :215-229

← 1 2 →