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| 时效处理对高强耐热镁合金等温模锻件组织与性能的影响 | |
| 引用本文： | 张浩. 时效处理对高强耐热镁合金等温模锻件组织与性能的影响[J]. 宇航材料工艺, 2012, 42(1): 54-56,66 |
| 作者姓名： | 张浩 |
| 作者单位： | 1. 航天材料及工艺研究所,北京,100076 2. 哈尔滨工业大学,哈尔滨,150001 |
| 摘 要： | 采用锻后直接时效处理的方法研究了时效处理工艺对高强耐热镁合金等温模锻件的组织与性能的影响,分析了其时效强化过程中第二相的形成及时效处理制度相关的断裂行为,得出了其时效强化的内在机理及优化的锻后时效制度.研究表明优化的时效处理制度为200℃×63 h.在该时效制度下,材料的室温抗拉强度达到了371MPa,屈服强度达到243 MPa,伸长率达4.1％ |
| 关 键 词： | 镁合金 等温成形 时效处理 力学性能 |
Effect of Aging Treatment on Microstructure and Mechanical Properties of Forging Heat-Resisting Mg alloy |
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| Zhang Hao , Du Zhihui , Xie Fei , Zhou Xiaojian , Shan Debin. Effect of Aging Treatment on Microstructure and Mechanical Properties of Forging Heat-Resisting Mg alloy[J]. Aerospace Materials & Technology, 2012, 42(1): 54-56,66 | |
| Authors: | Zhang Hao Du Zhihui Xie Fei Zhou Xiaojian Shan Debin |
| Affiliation: | 1 Aerospace Research Institute of Materals & Processing Technology,Beijing 100076)(2 Harbin University of Science and Technology,Harbin 150001) |
| Abstract: | The effect of aging treatment on microstructure and mechanical properties of forging heat-resisting Mg alloy was studied by single aging treatment.The aging phase and fracture behavior were analized.Accroding to the experiment results the optimized treatment process and intrinsic mechanism were achived.After heat treatment at 200℃×63 h,the fracture strength reaches 371 MPa,the yield strength reaches 243 MPa and the elongation reaches 4.1%. |
| Keywords: | Magnisum alloy Isothermal forming Aging treatment Mechanical property |
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