Journal
OPTICS AND LASER TECHNOLOGY
Volume 91, Issue -, Pages 116-119Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2016.12.032
Keywords
Metals and alloys; Laser processing; Indentation and hardness; Microstructure
Categories
Funding
- High Technology Research and Development Program of China [2014AA041701]
- National Natural Science Foundation of China [51171179, 51271174, 51331005, 51501219, 11332010]
- Natural Science Foundation of Liaoning Province in China [2015020115]
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Nanoindention tests and SEM microstructure observations were conducted on a single crystal nickel base superalloy after laser shock peening (LSP). Distinct surface hardening behavior was found to occur under the selected LSP technology. A large discrepancy in gamma' areas happened on laser shocked regions and the large plastic deformation embodied in gamma' phases' deformation brought a significant hardening effect.
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