Enhanced strengthening by two-step progressive solution and aging treatment in AM50-4%(Zn,Y) magnesium alloy

作     者：Shuai DAI Feng WANG De-zhi MA Zhi WANG Zheng LIU Ping-li MAO 代帅;王峰;马德志;王志;刘正;毛萍莉

作者机构：School of Materials Science and EngineeringShenyang University of TechnologyShenyang 110870China 

基　　金：Project (201602548) supported by Liaoning Province Natural Science Foundation,China Project (1711800) supported by Shenyang Science and Technology Plan,China Project (LQGD2017032) supported by Youth Project of Liaoning Education Department,China Projects (51504153,51571145) supported by the National Natural Science Foundation of China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2018年第28卷第12期

页      码：2419-2426页

摘      要：AM50-4%(Zn,Y)alloy with a Zn/Y mole ratio of6:1was subjected to thermal analysis,and the results were used for designing a two-step progressive solution treatment *** effects of solution and aging treatments on the microstructure and mechanical properties of the AM50-4%(Zn,Y)alloy were investigated using OM,XRD,SEM/EDS,TEM,tensile test and hardness *** experimental results demonstrated that the two-step progressive solution treatment could make theΦandβphases sufficiently dissolve into the matrix which possessed higher supersaturated degree of the dissolved solute compared with the one-step solution *** resulted in a certain enhancement of the precipitation strengthening effect during the subsequent aging *** precipitation of theФphase had a greater impact on the comprehensive mechanical properties of the alloy thanβphase precipitation when the aging treatment was performed at180℃.The peak aging strength of the AM50-4%(Zn,Y)alloy which was subjected to the two-step progressive solution treatment process(345℃for16h and375℃for6h)was obtained after the aging treatment at180℃for12h.

主 题 词：AM50-4%(Zn,Y) alloy thermal analysis solution aging treatment microstructure strengthening mechanism 

学科分类：080503[080503] 08[工学] 0805[工学-能源动力学] 0802[工学-机械学] 080201[080201] 

核心收录：

D　O　I：10.1016/S1003-6326(18)64888-5

馆 藏 号：203420408...