| 固溶原子、析出相和变形对Al-Sc-Zr合金组织和性能的定量影响（英文） |
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| 引用本文： | 管仁国,金红梅,Wensen JIANG,王祥,王宇翔,李征,张俭,Huinan LIU.固溶原子、析出相和变形对Al-Sc-Zr合金组织和性能的定量影响（英文）[J].中国有色金属学会会刊,2019(5):907-918. |
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| 作者姓名： | 管仁国 金红梅 Wensen JIANG 王祥 王宇翔 李征 张俭 Huinan LIU |
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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先进润滑与密封材料研究中心;东北大学材料科学与工程学院;Materials Science and Engineering Program;Department of Bioengineering |
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| 基金项目： | Project(51674077) supported by the National Natural Science Foundation of China;Project(2018YFB2001800) supported by the National Research and Development Program of China |
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| 摘 要： | 为了研究固溶原子、析出相粒子和冷变形对Al-Sc-Zr合金组织和性能的影响,对连续流变挤压制备的Al-Sc-Zr合金进行形变热处理,采用电导率、强度、显微硬度测试以及光学显微镜、TEM、STEM对合金在不同处理状态下的显微组织和性能进行研究。建立固溶原子、析出相粒子和冷变形对合金导电率定量贡献的数学模型。结果表明:固溶、时效和冷变形都能使合金的强度得到显著的提升,而固溶原子、沉淀粒子和冷变形对Al合金导电率影响值分别是10.5%(IACS)、2.3%(IACS)和0.5%(IACS)。时效和冷变形处理是获得高强高导铝合金导线的关键。
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| 关 键 词： | Al-Sc-Zr合金 热处理 冷变形 力学性能 导电率 |
Quantitative contributions of solution atoms,precipitates and deformation to microstructures and properties of Al-Sc-Zr alloys |
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| Affiliation: | (Center of Advanced Lubrication and Seal Materials,State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi’an 710072,China;School of Material Science and Engineering,Northeastern University,Shenyang 110819,China;Materials Science and Engineering Program,University of California at Riverside,900 University Avenue,Riverside,California 92521,USA;Department of Bioengineering,University of California at Riverside,900 University Avenue,Riverside,California 92521,USA) |
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| Abstract: | In order to investigate the effects of solid solution atoms, precipitated particles and cold deformation on the microstructures and properties of Al-Sc-Zr alloys, the Al-Sc-Zr alloys prepared by continuous rheo-extrusion were treated by thermomechanical treatment, analyzed for conductivity and mechanical properties by tensile and microhardness testing, and characterized using optical microscope, TEM and STEM. A mathematical model was established to quantitatively characterize the contribution of solid solution atoms, precipitates and cold deformation to the conductivity of the alloy. The results show that the strength of Al alloy can be significantly improved by solid solution, aging and cold deformation, and the quantitative impacts of solution atoms, precipitates and cold deformation on the conductivity of Al alloy are 10.5%(IACS), 2.3%(IACS) and 0.5%(IACS), respectively. Aging and cold deformation treatments are the keys to obtain high-strength and high-conductivity aluminum alloy wires. |
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| Keywords: | Al Sc Zr alloy thermal treatment cold deformation mechanical properties conductivity |
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