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个人信息Personal Information
教授
招生学科专业:
材料科学与工程 -- 【招收硕士研究生】 -- 材料科学与技术学院
机械 -- 【招收硕士研究生】 -- 材料科学与技术学院
材料与化工 -- 【招收硕士研究生】 -- 材料科学与技术学院
性别:男
毕业院校:上海交通大学
学历:上海交通大学
学位:工学博士学位
所在单位:材料科学与技术学院
电子邮箱:
Effects of Al addition on the microstructure and mechanical properties of Mg-4Y alloys
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所属单位:材料科学与技术学院
发表刊物:MATERIALS SCIENCE AND TECHNOLOGY
关键字:Magnesium alloys Mg-4Y Al2Y microstructure mechanical properties
摘要:The effects of Al additions (<= 4 wt-%) on the microstructure and mechanical properties of Mg-4Y alloys were investigated. The microstructure of the as-cast Mg-4Y-1Al alloy consisted of an alpha-Mg matrix, together with Mg24Y5 and Al2Y phases. Al2Y formed preferentially when Al was added, replacing the Mg24Y5 phase by consuming Y solute. The eutectic reaction occurred, forming a-Mg and Mg24Y5 phases for Al contents below 2 wt-%; however, the pseudo-binary eutectic reaction occurred, forming alpha-Mg and Al2Y phases, for Al contents higher than 2 wt-%. The addition of Al improved mechanical properties. The Mg-4Y-4Al alloy exhibited the optimal ultimate tensile strength and yield strength, with values of 208 and 81 MPa, respectively.
ISSN号:0267-0836
是否译文:否
发表时间:2017-01-01
合写作者:尹涵,刘希琴,范汝友,刘洋,李健
通讯作者:刘子利