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Title: Boiling effect in crater development on magnesium surface induced by laser melting
Authors: Guan, Yingchun
Zhou, Wei
Li, Zhongli
Zheng, Hongyu
Keywords: Mg and Mg alloy
Nanosecond pulse laser
Boiling and bubble
Thermal effect
Issue Date: 2014
Source: Guan, Y., Zhou, W., Li, Z., & Zheng, H. (2014). Boiling effect in crater development on magnesium surface induced by laser melting. Surface and Coatings Technology, 252, 168-172.
Series/Report no.: Surface and Coatings Technology
Abstract: This paper demonstrated that micron-craters could be fabricated on both magnesium and Mg alloy surfaces by nanosecond pulsed laser processing. Experimental results revealed that the craters with broad distribution of dimension occurred after laser melting. Morphological difference at the irradiated surface between Mg and Mg alloy indicated that thermal properties, alloying elements and microstructure of irradiated materials were key factors responsible for crater formation. It was proposed that the craters were formed by combined effect of explosive volume boiling and generation of cavitation bubbles during laser melting. Thermal effect of nanosecond pulsed laser processing on Mg and Mg alloy as well as progressive formation of laser-induced crater was further discussed. Such phenomenon extended potential applications of Mg materials, which offered the potential for developing new types of Mg-based biomedical devices.
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2014.05.002
Rights: © 2014 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Surface and Coatings Technology, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles
SIMTech Journal Articles

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