IMR OpenIR
Effect of corrosive environment on fatigue property and crack propagation behavior of Al 2024 friction stir weld
Alternative TitleEffect of corrosive environment on fatigue property and crack propagation behavior of Al 2024 friction stir weld
Wang Lei; Hui Li; Zhou Song; Xu Liang; He Bo
2016
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume26Issue:11Pages:2830-2837
AbstractIn this investigation, 2024 aluminium alloy plates were friction stir welded, a sequence of experiments was performed including fatigue and crack propagation tests in air, under pre-corrosion and in a 3.5% NaCl solution, in combination with fractography analyses of near-threshold region, Paris region and finial fracture region with the aid of scanning electron microscopy (SEM). Results showed that the corrosive environment caused a dramatical decrease in fatigue lives of FS welds, the corrosion fatigue lives of FS welds were almost a half of those of the as-welded specimens. The crack growth rates in FS welds were higher than their counterparts in base materials, under the corrosive environment, the crack growth rate differences between base materials and FS welds become increasingly apparent with the increase of stress intensity factor range Delta K, but the pre-corrosion process had little effect on the FS welds' crack propagation behavior except for shortening the crack initiation lives greatly.
Other AbstractIn this investigation, 2024 aluminium alloy plates were friction stir welded, a sequence of experiments was performed including fatigue and crack propagation tests in air, under pre-corrosion and in a 3.5% NaCl solution, in combination with fractography analyses of near-threshold region, Paris region and finial fracture region with the aid of scanning electron microscopy (SEM). Results showed that the corrosive environment caused a dramatical decrease in fatigue lives of FS welds, the corrosion fatigue lives of FS welds were almost a half of those of the as-welded specimens. The crack growth rates in FS welds were higher than their counterparts in base materials, under the corrosive environment, the crack growth rate differences between base materials and FS welds become increasingly apparent with the increase of stress intensity factor range ΔK, but the pre-corrosion process had little effect on the FS welds' crack propagation behavior except for shortening the crack initiation lives greatly.
KeywordALUMINUM-ALLOY GROWTH PERFORMANCE JOINTS friction stir welding aluminium alloy fatigue crack growth rate corrosion
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [General Project of Scientific Research of Liaoning Provincial Education Department, China] ; [Natural Science Foundation of Liaoning Province, China]
CSCD IDCSCD:5874610
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/145626
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang Lei,Hui Li,Zhou Song,et al. Effect of corrosive environment on fatigue property and crack propagation behavior of Al 2024 friction stir weld[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2016,26(11):2830-2837.
APA Wang Lei,Hui Li,Zhou Song,Xu Liang,&He Bo.(2016).Effect of corrosive environment on fatigue property and crack propagation behavior of Al 2024 friction stir weld.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,26(11),2830-2837.
MLA Wang Lei,et al."Effect of corrosive environment on fatigue property and crack propagation behavior of Al 2024 friction stir weld".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 26.11(2016):2830-2837.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang Lei]'s Articles
[Hui Li]'s Articles
[Zhou Song]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang Lei]'s Articles
[Hui Li]'s Articles
[Zhou Song]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang Lei]'s Articles
[Hui Li]'s Articles
[Zhou Song]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.