High-power laser shock-induced dynamic fragmentation of iron foils

2010 ◽  
Vol 82 (17) ◽  
Author(s):  
G. Morard ◽  
T. de Rességuier ◽  
T. Vinci ◽  
A. Benuzzi-Mounaix ◽  
E. Lescoute ◽  
...  
Keyword(s):  
High Power ◽  
Laser Shock ◽  
High Power Laser ◽  
Power Laser ◽  
Dynamic Fragmentation

Characteristics of High Power Laser Shock Waves and Their Cleaning Performance

2019 ◽  
Vol 11 (2) ◽  
pp. 41-46 ◽  
Author(s):  
Tae-Gon Kim ◽  
Young-Sam Yoo ◽  
Il-Ryong Son ◽  
Deoksuk Jang ◽  
Dongsik Kim ◽  
...  
Keyword(s):  
Shock Waves ◽  
High Power ◽  
Laser Shock ◽  
High Power Laser ◽  
Power Laser ◽  
Cleaning Performance

scholarly journals High Power Laser Developments with Femtosecond to Nanosecond Pulse Durations for Laser Shock Science and Engineering

2014 ◽  
Vol 42 (6) ◽  
pp. 441
Author(s):  
Hiromitsu KIRIYAMA ◽  
Michiaki MORI ◽  
Masayuki SUZUKI ◽  
Izuru DAITO ◽  
Hajime OKADA ◽  
...  
Keyword(s):  
High Power ◽  
Nanosecond Pulse ◽  
Laser Shock ◽  
High Power Laser ◽  
Power Laser ◽  
Science And Engineering

scholarly journals Toward the Fusion of High-Power Laser Shock and Material Sciences

2020 ◽  
Vol 30 (3) ◽  
pp. 216-224
Author(s):  
Norimasa OZAKI ◽  
Kento KATAGIRI ◽  
Yoshinori TANGE ◽  
Kohei MIYANISHI ◽  
Kei-ichi SUEDA ◽  
...  
Keyword(s):  
High Power ◽  
Laser Shock ◽  
High Power Laser ◽  
Power Laser ◽  
Material Sciences

Effect of Laser Glazing and Laser Shock Peening on Tribological Performance of 1080 Carbon Steel

2004 ◽  
Author(s):  
Saud Aldajah ◽  
Oyelayo O. Ajayi ◽  
George R. Fenske ◽  
Claude B. Reed ◽  
Zhiyue Xu
Keyword(s):  
Carbon Steel ◽  
High Power ◽  
Friction Reduction ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
High Power Laser ◽  
Laser Glazing ◽  
Power Laser ◽  
Microstructure And Properties ◽  
Shock Peening

High-power laser surface treatments in the form of glazing, shock peening, cladding, and alloying can significantly affect material tribology. In this paper, effects of laser glazing, laser shock peening, and their combination on the tribological behavior of 1080 carbon steel were investigated. Laser glazing is a process in which a high-power laser beam melts the top layer of the surface, followed by rapid cooling and resolidification. This results in a new surface layer microstructure and properties. Laser shock peening, on the other hand, is a mechanical process in which a laser generates pressure pulses on the surface of the metal, similar to shot peening. Five conditions were evaluated: untreated (baseline), laser shock peened only (PO), laser-glazed only (GO), laser-glazed then shock peened last (GFPL), and laser shock peened then glazed last (PFGL). In pin-on-disc testing, all laser-treated surfaces reduced dry friction, with the GFPL surface having maximum friction reduction of 43%. Under lubricated conditions, all laser-treated surfaces except the PO sample lowered friction. Similarly, all glazed samples reduced wear by a factor of 2–3, while the PO sample did not change wear significantly. These tribological results are associated with changes in the near-surface microstructure and properties.

scholarly journals High-power laser shock-induced dynamic fracture of aluminum and microscopic observation of samples

2015 ◽  
Vol 94 ◽  
pp. 02008
Author(s):  
Zhang Fan ◽  
Huang Xiuguang ◽  
Shu Hua ◽  
Xiao Dawu ◽  
He Lifeng ◽  
...  
Keyword(s):  
Dynamic Fracture ◽  
High Power ◽  
Microscopic Observation ◽  
Laser Shock ◽  
High Power Laser ◽  
Power Laser

Effect of Laser Surface Modifications Tribological Performance of 1080 Carbon Steel

2005 ◽  
Vol 127 (3) ◽  
pp. 596-604 ◽  
Author(s):  
S. H. Aldajah ◽  
O. O. Ajayi ◽  
G. R. Fenske ◽  
Z. Xu
Keyword(s):  
Carbon Steel ◽  
High Power ◽  
Laser Surface ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
High Power Laser ◽  
Laser Glazing ◽  
Power Laser ◽  
Microstructure And Properties ◽  
Shock Peening

High-power laser surface treatments in the form of glazing, shock peening, cladding, and alloying can significantly affect material surface properties. In this paper, effects of laser glazing, laser shock peening, and their combination on the tribological behavior of 1080 carbon steel were investigated. Laser glazing is a process in which a high-power laser beam melts the top layer of the surface, followed by rapid cooling and resolidification. This results in a new surface layer microstructure and properties. Laser shock peening, on the other hand, is a mechanical process in which a laser generates pressure pulses on the surface of the metal, similar to shot peening. Five conditions were evaluated: untreated (baseline), laser shock peened only (PO), laser glazed only, laser glazed then shock peened last, and laser shock peened then glazed last (PFGL). In pin-on-disc testing, all laser-treated surfaces reduced dry friction when sliding against alumina, with the PFGL surface having maximum friction reduction of 43%, especially in the early stage of testing. Under lubricated conditions, all laser-treated surfaces except the PO sample lowered friction against alumina. Similarly, all glazed samples showed reduced wear by a factor of 2–3, whereas the peening alone did not change wear significantly. These tribological results are associated with changes in the near-surface microstructure and properties.

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