| 喷射成形Al-Zn-Mg-Cu合金的组织与性能研究 |
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| 引用本文： | 白朴存,张秀云,陈伟. 喷射成形Al-Zn-Mg-Cu合金的组织与性能研究[J]. 金属热处理, 2006, 31(6): 17-20 |
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| 作者姓名： | 白朴存 张秀云 陈伟 |
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| 作者单位： | 内蒙古工业大学,材料学院,内蒙古,呼和浩特,010062;中国兵器工业第52研究所,内蒙古,包头,014000 |
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| 基金项目： | 内蒙古高等学校科研项目 |
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| 摘 要： | 对喷射沉积制备的高zn（11．3wt％）Al-Zn-Mg-Cu合金进行挤压和热处理，并测试了力学性能。通过透射电镜和扫描电镜对拉伸试样的微观组织进行了研究，提出了合金的强化机制。结果表明，该喷射沉积Al-Zn-Mg-cu合金的抗拉强度、屈服强度和伸长率分别为849MPa、796MPa和3．3％。合金的强化主要来源于纳米晶强化、固溶强化以及沉淀强化。断口分析显示，合金的断裂方式主要为沿晶断裂。
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| 关 键 词： | 喷射成形 Al-Zn-Mg-Cu合金 微观组织 力学性能 |
| 文章编号： | 0254-6051（2006）06-0017-04 |
| 收稿时间： | 2005-11-22 |
| 修稿时间： | 2005-11-22 |
Microstructures and Properties of Spray-Formed Al-Zn-Mg-Cu Alloy |
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| BAI Pu-cun,ZHANG Xiu-yun,CHEN Wei. Microstructures and Properties of Spray-Formed Al-Zn-Mg-Cu Alloy[J]. Heat Treatment of Metals, 2006, 31(6): 17-20 |
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| Authors: | BAI Pu-cun ZHANG Xiu-yun CHEN Wei |
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| Affiliation: | 1. School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot Inner Mongolia 010062 ,China; 2. The 52th Institute of China Ordnance Industries ,Baotou Inner Mongolia 014000, China |
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| Abstract: | Spray formed Al-Zn-Mg-Cu alloy with high Zn content(11.3 wt%) was extruded and heat treated,and its mechanical properties were tested.Microstructures of the tension sample have been investigated by TEM and SEM,and strengthening mechanism of the experimental alloy was put forward also.The results show that ultimate tension strength,yield strength and elongation rate of the spray formed aluminum alloy is 849 MPa,796 MPa and 3.3% respectively.It could be confirmed that nano-scale grain,solid solution and precipitate phase are mainly responsible for strengthening of the Al-Zn-Mg-Cu alloy,and fracture mode of tensile sample is type of intergranular fracture according to the results of SEM analysis. |
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| Keywords: | spray forming Al-Zn-Mg-Cu alloy microstructures mechanical properties |
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