CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Porosity induced fatigue damage of laser welded 7075-T6 joints investigated via synchrotron X-ray microtomography
Wu, SC; Yu, C; Zhang, WH; Fu, YN; Helfen, L
2015
Source PublicationSCIENCE AND TECHNOLOGY OF WELDING AND JOINING
Volume20Issue:1Pages:11—19
Subtype期刊文献
AbstractThe interaction between the pores and the fatigue damage in 7075-T6 joints was characterised via high resolution synchrotron radiation X-ray microcomputed tomography. The spatial distribution and growth behaviour of the pores were investigated and quantified. The gas porosity inside 7075-T6 hybrid welds was found to play a significant role in the fatigue crack nucleation and propagation process. The volume fraction and the total number of pores increased slightly with increasing number of fatigue cycles, which provides a key indicator for the damage evolution. Experimental results indicate that the micropores grew and distorted during fatigue cyclic loading, eventually resulting in fatigue cracks. Under cyclic loads, the maximum micropore is usually not a favourable site, in terms of physical suitability, for fatigue crack initiation and propagation, and the diameter of the cracked pores is in the range of 10-100 mu m.
Keyword3-dimensional Visualization Aluminum-alloys Hydrogen Micropores Cast-aluminum Crack Tomography Behavior Deformation
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24535
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Wu, SC,Yu, C,Zhang, WH,et al. Porosity induced fatigue damage of laser welded 7075-T6 joints investigated via synchrotron X-ray microtomography[J]. SCIENCE AND TECHNOLOGY OF WELDING AND JOINING,2015,20(1):11—19.
APA Wu, SC,Yu, C,Zhang, WH,Fu, YN,&Helfen, L.(2015).Porosity induced fatigue damage of laser welded 7075-T6 joints investigated via synchrotron X-ray microtomography.SCIENCE AND TECHNOLOGY OF WELDING AND JOINING,20(1),11—19.
MLA Wu, SC,et al."Porosity induced fatigue damage of laser welded 7075-T6 joints investigated via synchrotron X-ray microtomography".SCIENCE AND TECHNOLOGY OF WELDING AND JOINING 20.1(2015):11—19.
Files in This Item:
File Name/Size DocType Version Access License
Porosity induced fat(565KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wu, SC]'s Articles
[Yu, C]'s Articles
[Zhang, WH]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wu, SC]'s Articles
[Yu, C]'s Articles
[Zhang, WH]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wu, SC]'s Articles
[Yu, C]'s Articles
[Zhang, WH]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Porosity induced fatigue damage of laser welded 7075-T6 joints investigated via synchrotron X-ray microtomography.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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