| Autor: |
Takeshi Watari, Yuta Kine, Masahiko Mitsubayashi, Yuki Kabeya, Takashi Kurita, Ryo Yoshimura, Katsuya Hirano, Toshiyuki Kawashima |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Results in Optics, Vol 15, Iss , Pp 100658- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2666-9501 |
| DOI: |
10.1016/j.rio.2024.100658 |
| Popis: |
The effect of laser peening-induced compressive residual stress on the fatigue strength improvement of A7075 specimens was investigated. Rotary bending fatigue tests and residual stress distribution measurements using the sequential polishing method were conducted on untreated, shot-peened, and laser-peened specimens. The results revealed that laser peening provides a deeper compressive stress and a deeper fracture origin, resulting in higher fatigue strength. Furthermore, controlling the laser parameters could extend the depth of the compressive stress layer by approximately 5 mm, indicating the possibility of applying laser peening to thicker materials to improve the fatigue strength. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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