Microstructure and corrosion resistance of a Mg2Sn-dispersed Mg alloy subjected to pulsed electron beam treatment

Beomcheol Kim; Daseul Lee; Hyung Wook Park; Jisoo Kim; Jung Gu Lee; Soo-Min Baek; Sung Soo Park

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Microstructure and corrosion resistance of a Mg2Sn-dispersed Mg alloy subjected to pulsed electron beam treatment

Microstructure and corrosion resistance of a Mg2Sn-dispersed Mg alloy subjected to pulsed electron beam treatment

作者：

Beomcheol Kim Daseul Lee Hyung Wook Park Jisoo Kim Jung Gu Lee Soo-Min Baek Sung Soo Park

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Magnesium

alloy

Mg2Sn

Intermetallic

compound

Pulsed

electron

beam

treatment

CORROSION

摘要：

We report that the corrosion resistance of a Mg-Sn-based alloy with MgzSn precipitates can be considerably improved by surface modification using pulsed electron beam treatment.The alloy subjected to a pulse electron beam treatment showed a modified surface layer with a thickness of〜12 μm,appearing more resistant to corrosion attack than the bare surface of the alloy.In 0.6 M NaCl solution,the alloys with and without the surface modification exhibited average corrosion rates of 4.3 and 8.1 mm y^-1,respectively.The improved corrosion resistance was attributed to reduced cathodic activation,resulting from the surficial reduction of relatively noble Mg2Sn precipitates.

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篇名	Microstructure and corrosion resistance of a Mg2Sn-dispersed Mg alloy subjected to pulsed electron beam treatment
来源期刊	镁合金学报(英文)	学科	工学
关键词	Magnesium alloy Mg2Sn Intermetallic compound Pulsed electron beam treatment CORROSION
年，卷（期）	2020,（2）	所属期刊栏目
研究方向		页码范围	345-351
页数	7页	分类号	TG1
字数		语种
DOI