Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 528, Issue 6, Pages 2899-2903Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2010.12.058
Keywords
Laser shock processing; Fatigue fracture; Aluminum alloy; Residual stress
Categories
Funding
- National Natural Science Foundation of China [50905080, 50735001]
- China Postdoctoral Science Foundation Funded Project [20100471385]
- Advanced Talent Foundation of Jiangsu University of China [10JDG066]
Ask authors/readers for more resources
The aim of this paper was to identify the effect of laser shock peening (LSP) on the fatigue crack initiation and propagation of 7050-T7451 aluminum alloy. The laser shocked specimen in which residual compressive stress is mechanically produced into the surface showed a very high dislocation density within the grains. This was evident throughout the LSP region. The spacing among the fatigue striations in the LSP region was narrow, which indicated that LSP had an obvious inhibitory action to fatigue crack initiation and growth. In contrast, the region without LSP exhibited an extremely low dislocation density. And LSP improved 7050-T7451 alloy specimens' fatigue intensity. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
