Influence of pulse duration on mechanical properties and dislocation density of dry laser peened aluminum alloy using ultrashort pulsed laser-driven shock wave

Yoshida, Masayuki; Nishibata, Itsuki; Matsuda, Tomoki et al.

Journal of Applied Physics, 2022, 132(7), 075101

Number of Access:1,960（2025-08-14 10:43 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89440

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Title
Influence of pulse duration on mechanical properties and dislocation density of dry laser peened aluminum alloy using ultrashort pulsed laser-driven shock wave
Creator
CreatorName
Yoshida, Masayuki ; 吉田, 雅幸
CreatorName
Nishibata, Itsuki ; 西端, 樹
NRID
1000030756333 1000030756333
ORCID
0000-0002-3978-0118 0000-0002-3978-0118
researchmap permalink
tomokimatsuda tomokimatsuda
Scopus Author ID
56430312900 56430312900
CreatorName
Matsuda, Tomoki ; 松田, 朋己
NRID
1000090843227 1000090843227
CreatorName
Ito, Yusuke ; 伊藤, 佑介
NRID
1000070372406 1000070372406
CreatorName
Sugita, Naohiko ; 杉田, 直彦
NRID
1000060707446 1000060707446
CreatorName
Shiro, Ayumi ; 城, 鮎美
NRID
1000090425562 1000090425562
CreatorName
Shobu, Takahisa ; 菖蒲, 敬久
NRID
1000030294367 1000030294367
CreatorName
Arakawa, Kazuto ; 荒河, 一渡
NRID
1000070144433 1000070144433
CreatorName
Hirose, Akio ; 廣瀬, 明夫
NRID
1000030314371 1000030314371
ORCID
0000-0003-2624-5092 0000-0003-2624-5092
researchmap permalink
read0068627 read0068627
Scopus Author ID
7402240743 7402240743
CreatorName
Sano, Tomokazu ; 佐野, 智一
Description
Yoshida M., Nishibata I., Matsuda T., et al., Journal of Applied Physics, 132(7), 075101 (2022) https://doi.org/10.1063/5.0083511
Abstract
This study aims to investigate the influence of the pulse duration on the mechanical properties and dislocation density of an aluminum alloy treated using dry laser peening (DLP), which is a laser peening technique that uses ultrashort pulsed laser-driven shock wave to eliminate the need for a sacrificial overlay under atmospheric conditions. The results of the micro-Vickers hardness test, residual stress measurement, and dislocation density measurement demonstrate that over a pulse duration range of 180 fs to 10 ps, the maximum peening effects are achieved with a pulse duration of 1 ps. Moreover, the most significant DLP effects are obtained by choosing a pulse duration that achieves a laser intensity that simultaneously generates the strongest shock pressure, suppresses optical nonlinear effects, and realizes the least thermal effects, which weaken the shock effects. Shock temperature calculations based on thermodynamic equations also suggest that a laser intensity driving a shock pressure less than 80 GPa, as in the case of a pulse duration of 1 ps in this study, maintains the solid state of the material throughout the process, resulting in significant DLP effects.
Publisher
American Institute of Physics
Source Title
Journal of Applied Physics
Volume (Issue)
132(7)
Page
075101
Date of Issued
2022-08-21
Language
English
Handle URL
https://hdl.handle.net/11094/89440
PISSN
00218979
eISSN
10897550
NCID
AA11868165
AA00693547
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1063/5.0083511
Access Rights
open access
CopyRight
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Yoshida M., Nishibata I., Matsuda T., et al. Influence of pulse duration on mechanical properties and dislocation density of dry laser peened aluminum alloy using ultrashort pulsed laser-driven shock wave. Journal of Applied Physics, 132(7), 075101 and may be found at https://doi.org/10.1063/5.0083511.
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Version of Record
Category
学術雑誌論文 Journal Article