Optimisation of the mechanical properties of a Spark Plasma Sintered (SPS) magnesium alloy through a post-sintering in-situ precipitation treatment

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• 作者：Mathieu Mondet^a ; ^b ; ^{mathieu.mondet@gmail.com} ; Elodie Barraud^a ; Sé ; bastien Lemonnier^a ; Nathalie Allain^b ; ^c ; Thierry Grosdidier^b ; ^c ; ^{thierry.grosdidier@univ-lorraine.fr}
• 关键词：Magnesium alloy ; Powder metallurgy ; Spark Plasma Sintering ; Precipitation treatment ; Mechanical properties
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 March 2017
• 年：2017
• 卷：698
• 期：Complete
• 页码：259-266
• 全文大小：1921 K
• 卷排序：698

文摘

AZ91 powder was consolidated by a two stage “in-situ” SPS cycle. Longer sintering times at 360 °C improved material cohesion while keeping fine grains. Al12Mg17 precipitation was subsequently controlled by an in-situ treatment at 200 °C. The in-situ treatment induced continuous and discontinuous Al12Mg17 precipitations. Proper control of the two stage SPS treatment led to optimum properties.