| 引用本文: | 张浩,张绪虎,杜志惠,单德彬,王少华,朱秉诚.镁合金多向转接头等温成形数值模拟及实验研究[J].材料科学与工艺,2013,21(4):123-126.DOI:10.11951/j.issn.1005-0299.20130422. |
| ZHANG Hao,ZHANG Xu-hu,DU Zhi-hui,SHAN De-bin,WANG Shao-hua,ZHU Bing-cheng.The numerical simulation and experiment study of multi-transfer-deviceby isothermal forming in magnesium alloy[J].Materials Science and Technology,2013,21(4):123-126.DOI:10.11951/j.issn.1005-0299.20130422. |
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| 镁合金多向转接头等温成形数值模拟及实验研究 |
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张浩1,2 ,张绪虎2 ,杜志惠2 ,单德彬3,王少华4,朱秉诚4
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(1.中国运载火箭技术研究院,北京 100076;2.航天材料及工艺研究所,北京 100076; 3.哈尔滨工业大学 材料科学与工程学院,哈尔滨 150001;4.空间物理重点实验室,北京 100076)
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| 摘要: |
| 采用数值模拟方法研究了高强耐热镁合金多向转接头的等温锻造过程,分析了导套形状、锻造方案对构件成形过程中金属流动行为的影响,根据模拟结果制定了圆形导套、两次下压的成形方案,并采用此方案成功锻造出高强耐热镁合金多向转接头模锻件。对该锻件进行了时效热处理工艺研究,得出最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411 MPa,屈服强度达到331 MPa,延伸率达7.3%。 |
| 关键词: 镁合金 等温成形 时效处理 力学性能 有限元 |
| DOI：10.11951/j.issn.1005-0299.20130422 |
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| 基金项目:国防基础科研计划资助项目（A0320110003） |
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| The numerical simulation and experiment study of multi-transfer-deviceby isothermal forming in magnesium alloy |
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ZHANG Hao1,2 ,ZHANG Xu-hu2 ,DU Zhi-hui2 ,SHAN De-bin3,WANG Shao-hua4,ZHU Bing-cheng4
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(1.China Acdemy of Launch Vehicle Technology,Beijing 100076,China;2.Aerospace Research Institute of Material & ProcessingTechnology,Beijing 100076,China;3.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;4.Science and Technology on Space Physics Laboratory,Beijing 100076,China)
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| Abstract: |
| The isothermal forming process of multi-transfer-device has been studied by numerical simulation and experiment. Accroding to the simulation results, the effects of guide sleeve shape and forming programme on metal flowing behavior is analized and the cylinder guide sleeve and two steps forming programme are chosen. After isothermal forming, the product was heat treated at 200 ℃×63 h. The fracture strength reaches 411MPa, the yield strength reaches 331MPa and the elongation reaches 7.3%. |
| Key words: magnisum alloy isothermal forming aging treatment mechanical property finite element |
