不同热处理工艺对AZ80D镁合金板材低周疲劳性能的影响  

Effect of Low Cyclic Fatigue Properties of AZ80D Magnesium Alloy Sheet through Different Heat Treatment Process

作　　者：孙颖[1] 王萍萍 Sun Ying;Wang Pingping(Shanxi Engineering Vocational College,Yangquan Shanxi 045000;Liaoning Universityof Science and Technology,Anshan Liaoning 114051)

机构地区：[1]山西工程职业技术学院,山西阳泉045000 [2]辽宁科技大学,辽宁鞍山114051

出　　处：《现代工业经济和信息化》2018年第13期24-27,共4页Modern Industrial Economy and Informationization

基　　金：山西省高等学校科技项目"高强度变形镁合金轧制成形性能研究"(项目号:201597)

摘　　要：通过低周疲劳实验,研究了不同热处理状态对轧制AZ80D镁合金板材低周疲劳性能的影响。结果表明:AZ80D镁合金板材在总应变幅值较高时呈现循环应变硬化,而在较低的外加总应变幅下,AZ80D镁合金板的循环应力响应行为受热处理状态的影响;轧制和时效AZ80D镁合金在疲劳变形初期表现出循环稳定性,在中间阶段,观察到循环应变硬化,而在固溶镁合金中,总是观察到循环硬化。从实验结果可以推出,固溶处理和时效处理都能在一定程度上改变AZ80D镁合金板的循环应力响应行为。Through the low cycle fatigue experiment, studied the effect of low cycle fatigue Properties ofAZ80D magnesium alloy plate by the different heat treatment process. Results show that AZ80D magnesiumalloy plate present cyclic strain hardening in total strain amplitude, and under the low and total strainamplitude, the cyclic stress response behavior of the AZ80D magnesium alloy plate influenced by theheat treatment condition. In the early stage of fatigue, deformation Rolling and aging AZ80D magnesiumalloy show that the cycle stability, in the middle stage, the cyclic strain hardening was observed, and insolid solution in the magnesium alloy, cycle hard always observed.Cyclic stress response behavior of AZ80Dmagnesium alloy plate can changed by Solid solution treatment and aging treatment To a certain extent.

关 键 词：镁合金 热处理 低周疲劳 

分 类 号：TG339[金属学及工艺—金属压力加工]