Measurement of free surface velocity in laser shock peening with photonic Doppler velocimetry

2012 ◽  
Vol 42 (8) ◽  
pp. 861-868
Author(s):  
ChenGuang HUANG ◽  
XianQian WU ◽  
HongWei SONG ◽  
YanPeng WEI ◽  
Jian WANG ◽  
...  
Keyword(s):  
Free Surface ◽  
Laser Shock Peening ◽  
Surface Velocity ◽  
Doppler Velocimetry ◽  
Laser Shock ◽  
Free Surface Velocity ◽  
Shock Peening ◽  
Photonic Doppler Velocimetry

scholarly journals Laser Shock Peening: Toward the Use of Pliable Solid Polymers for Confinement

Metals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 793 ◽  
Author(s):  
Corentin Le Bras ◽  
Alexandre Rondepierre ◽  
Raoudha Seddik ◽  
Marine Scius-Bertrand ◽  
Yann Rouchausse ◽  
...  
Keyword(s):  
Fatigue Behavior ◽  
Extensive Study ◽  
Laser Shock Peening ◽  
Surface Velocity ◽  
Laser Shock ◽  
Solid Polymers ◽  
Laser Breakdown ◽  
Element Simulation ◽  
Shock Peening

This paper presents the first extensive study of the performances of solid polymers used as confinement materials for laser shock applications such as laser shock peening (LSP) as opposed to the exclusively used water-confined regime up to now. The use of this new confinement approach allows the treatment of metal pieces needing fatigue behavior enhancement but located in areas which are sensitive to water. Accurate pressure determination in the polymer confinement regime was performed by coupling finite element simulation and experimental measurements of rear free-surface velocity using the velocity interferometer system for any reflector (VISAR). Pressure could reach 7.6 and 4.6 GPa for acrylate-based polymer and cross-linked polydimethylsiloxane (PDMS), respectively. At 7 and 4.7 GW/cm 2 , respectively, detrimental laser breakdown limited pressure for acrylate and PDMS. These results show that the pressures produced were also as high as in water confinement, attaining values allowing the treatment of all types of metals with LSP and laying the groundwork for future determination of the fatigue behavior exhibited by this type of treated materials.

Effect of laser shock peening on microstructure and hot corrosion of TC11 alloy

2018 ◽  
Vol 335 ◽  
pp. 32-40 ◽  
Author(s):  
Zhaopeng Tong ◽  
Xudong Ren ◽  
Yunpeng Ren ◽  
Fengze Dai ◽  
Yunxia Ye ◽  
...  
Keyword(s):  
Hot Corrosion ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Shock Peening

Micro dents fabrication by laser shock peening on surfaces of metal parts

2021 ◽  
Author(s):  
D. S. Shtereveria ◽  
A. A. Volkova ◽  
A. A. Kholopov ◽  
M. A. Melnikova ◽  
D. M. Melnikov
Keyword(s):  
Laser Shock Peening ◽  
Laser Shock ◽  
Metal Parts ◽  
Shock Peening

Numerical modeling of the confined laser shock peening of the OFHC copper

2016 ◽  
Vol 108-109 ◽  
pp. 104-114 ◽  
Author(s):  
Cheng Wang ◽  
Xiaogui Wang ◽  
Yangjian Xu ◽  
Zengliang Gao
Keyword(s):  
Numerical Modeling ◽  
Laser Shock Peening ◽  
Ofhc Copper ◽  
Laser Shock ◽  
Shock Peening

Laser shock peening of copper poly- and single crystals

2021 ◽  
Vol 174 ◽  
pp. 111037
Author(s):  
Jiří Kubásek ◽  
Orsolya Molnárová ◽  
Jaroslav Čapek ◽  
Kristína Bartha ◽  
Jakub Čížek ◽  
...  
Keyword(s):  
Single Crystals ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Shock Peening
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