The Research on the Action Modes of Laser Shock Wave Affected by Different Confinement Overlays

Yin Qun Hua; Rui Fang Chen; Yun Xia Ye; Hai Xia Liu

doi:10.4028/www.scientific.net/AMR.403-408.2667

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 403-408The Research on the Action Modes of Laser Shock...

The Research on the Action Modes of Laser Shock Wave Affected by Different Confinement Overlays

Abstract:

The liquid confinement medium (LCM) and the free confinement medium (FCM) made by ourselves were used as confinement overlays of laser shock processing (LSP) respectively, stainless steel 304 was shocked by Nd:Glass laser. The parameters of LSP are the wavelength of 1.06μm, the pulse duration of 20ns, and output energy of 35~40J. The laser was focused on a spot of Ф5mm. Firstly, the profiles of shocked regions of samples were measured by Taylor Hobson admeasuring apparatus, in which two different confinement mediums are used by LSP. Secondly, the ruinous behavior of the free confinement overlays induced by laser shock wave is observed and analyzed. Analyzed and compared with the experiments results, it is discovered that the effects of LSP are different with using different confinement mediums.

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Periodical:

Advanced Materials Research (Volumes 403-408)

Pages:

2667-2670

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.403-408.2667

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Online since:

November 2011

Authors:

Yin Qun Hua, Rui Fang Chen, Yun Xia Ye, Hai Xia Liu

Keywords:

Action Mode, Confinement Overlay, Free Confinement Medium, Laser Shock Processing (LSP), Laser Shock Wave, Liquid Confinement Medium

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