| 往复挤压对Mg-0.85Zn-0.15Y-0.6Zr铸态组织和力学性能的影响 |
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| 引用本文： | 李安涛,王锦程,司 林,赖云亭,杨根仓.往复挤压对Mg-0.85Zn-0.15Y-0.6Zr铸态组织和力学性能的影响[J].稀有金属材料与工程,2011,40(3):515-518. |
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| 作者姓名： | 李安涛 王锦程 司 林 赖云亭 杨根仓 |
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| 作者单位： | 西北工业大学,凝固技术国家重点实验室,陕西,西安,710072 |
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| 基金项目： | 国家自然科学基金(50671083)及陕西省自然科学基金(2007E101)项目 |
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| 摘 要： | 研究了往复挤压对准晶增强Mg-0.85Zn-0.15Y-0.6Zr铸态合金显微组织及力学性能的影响。结果表明,往复挤压可大幅度细化Mg-0.85Zn-0.15Y-0.6Zr铸态合金组织,且使I相等相对均匀地分布在α-Mg基体中。同铸态合金相比,挤压后Mg-0.85Zn-0.15Y-0.6Zr合金的屈服强度、抗拉强度和延伸率分别提高了75.8%,43.2%和35%。
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| 关 键 词： | 往复挤压 微观组织 力学性能 |
| 收稿时间： | 2010/3/25 0:00:00 |
Effects of Reciprocating Extrusion on Microstructures and Mechanical Properties of as-Cast Mg-0.85Zn-0.15Y-0.6Zr Alloys |
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| Li Antao,Wang Jincheng,Si Lin,Lai Yunting and Yang Gencang.Effects of Reciprocating Extrusion on Microstructures and Mechanical Properties of as-Cast Mg-0.85Zn-0.15Y-0.6Zr Alloys[J].Rare Metal Materials and Engineering,2011,40(3):515-518. |
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| Authors: | Li Antao Wang Jincheng Si Lin Lai Yunting and Yang Gencang |
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| Affiliation: | Li Antao,Wang Jincheng,Si Lin,Lai Yunting,Yang Gencang(State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | Effects of reciprocating extrusion on the microstructures and mechanical properties of as-cast Mg-0.85Zn-0.15Y-0.6Zr alloys enforced by quasicrystal particles were investigated by OM,SEM and XRD.The results show that the reciprocating extrusion can greatly refine the microstructure of as-cast Mg-0.85Zn-0.15Y-0.6Zr alloy,and make I phase relatively uniformly distribute in the α-Mg matrix.Compared with that of the as-cast alloy,the yield strength,tensile strength and elongation of the Mg-0.85Zn-0.15Y-0.6Zr magnesium alloys after reciprocating extrusion are increased by 75.8%,43.2% and 35%,respectively. |
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| Keywords: | reciprocating extrusion (RE) microstructure mechanical properties |
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