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

Journal of Magnesium and Alloys 2020年第2期8卷 345-351页

作者： Daseul Lee Beomcheol Kim Soo-Min Baek Jisoo Kim Hyung Wook Park Jung Gu Lee Sung Soo Park School of Materials Science and Engineering Ulsan National Institute of Science and TechnologyUlsan 44919Republic of Korea School of Mechanical Aerospace and Nuclear EngineeringUlsan National Institute of Science and TechnologyUlsan 44919Republic of Korea School of Materials Science and Engineering University of UlsanUlsan 44610Republic of Korea

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 *** 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 *** 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,*** improved corrosion resistance was attributed to reduced cathodic activation,resulting from the surficial reduction of relatively noble Mg2Sn precipitates.

关键词： Magnesium alloy Mg2Sn Intermetallic compound pulsed electron beam treatment Corrosion

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Grade characteristics in surface layer of TC4 titanium alloy caused by pulsed electron beam treatment

Grade characteristics in surface layer of TC4 titanium alloy...

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第十届中俄双边新材料新工艺研讨会

作者： Yu.F.Ivanov N.N.Koval Institute of High-Current electronics SB RAS Academichesky ave.Tomsk634055Russia

＜正＞TC4 titanium alloy was employed to pulsed electron beam treated and the distribution along surface layer was investigated by Nano-indent analysis *** characteristics of grade characteristics were analyzed by studying the distribution of hardness and yield strength along surface layer of specimens which were electron beam treated specimens by *** correlation of hardness to microstructure was analyzed and the reason of forming grade fine grain microstructure was *** temperature grade or heat effect caused by pulsed electron beam treatment is the main reason to form grade fine grain microstructure in surface layer.

关键词： pulsed electron beam treatment grade characteristics nanoindent

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