Surface Morphology Evolution of High Speed Steel Induced by High Current Pulsed Electron Beam Irradiation

Hui Zhao; Xiao Hui Wang

doi:10.4028/www.scientific.net/AMR.557-559.1954

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 557-559Surface Morphology Evolution of High Speed Steel...

Surface Morphology Evolution of High Speed Steel Induced by High Current Pulsed Electron Beam Irradiation

Abstract:

Electron beam source was applied to investigate the effect of current, voltage and the number of pulse on surface morphology evolution of high speed steel. It has been revealed that the same trend of the morphology can be acquired by varying different parameters because energy is the main influencing factor. Material own defects and electron back-scattering are the primary reason for the formation of the craters as a result of the eruption of phase boundary. Through the following self- and re-melting repairing, the craters become shallow and the holes disappear. And the planar stress wave justified by the multi-loop craters is the root of the appearance of micro-cracks and cavities.

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Advanced Materials Research (Volumes 557-559)

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1954-1959

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https://doi.org/10.4028/www.scientific.net/AMR.557-559.1954

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Online since:

July 2012

Authors:

Hui Zhao, Xiao Hui Wang

Keywords:

Crater, High-Current Pulsed Electron Beam (HCPEB) Irradiation, High-Speed Steel, Surface Modification, Surface Morphology

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