| File | |
| Title |
Femtosecond laser peening of 2024 aluminum alloy without a sacrificial overlay under atmospheric conditions
|
| Creator |
Sano Tomokazu
Eimura Takayuki
Kashiwabara Ryota
Matsuda Tomoki
Isshiki Yutaro
Hirose Akio
Tsutsumi Seiichiro
Hashimoto Tadafumi
Masaki Kiyotaka
Sano Yuji
|
| Source Title |
Journal of Laser Applications
|
| Volume | 29 |
| Issue | 1 |
| Start Page | 012005-1 |
| End Page | 012005-7 |
| Journal Identifire |
ISSN 1042346X
|
| Descriptions |
Other
The authors have successfully performed femtosecond laser peening on a 2024 aluminum alloy without any sacrificial overlays. Laser pulses were directly irradiated to the surface of specimens in the air without water film as a plasma confinement medium during the peening treatment. The fatigue life was improved as much as 38 times in comparison with base material at a stress amplitude of 195 MPa. The fatigue strength of the peened specimen after 2 × 10^6 cycles was 58 MPa larger than that of the base material. The femtosecond laser peening process has a great potential to be applied in various fields where conventional peening methods cannot be used, as this process can be performed under ambient conditions without the use of a plasma confinement medium such as water or transparent materials.
|
| Subjects |
femtosecond laser peening
femtosecond laser-driven shock wave
laser peening
atmospheric conditions
sacrificial overlay
2024 aluminum alloy
|
| Language |
eng
|
| Resource Type | journal article |
| Publisher |
Laser Institute of America
|
| Date of Issued | 2017-02 |
| Rights |
© 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). [http://dx.doi.org/10.2351/1.4967013]
|
| Publish Type | Version of Record |
| Access Rights | open access |
| Relation |
[DOI]
10.2351/1.4967013
[NCID]
AA11040115
|
