| 热处理对SCR成形Al-1.5Mg-0.3Sc合金线材性能的影响 |
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| 引用本文： | 张雪飞,李俊鹏,温景林.热处理对SCR成形Al-1.5Mg-0.3Sc合金线材性能的影响[J].材料研究学报,2006,20(3):281-286. |
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| 作者姓名： | 张雪飞 李俊鹏 温景林 |
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| 作者单位： | 东北大学材料与冶金学院,沈阳,110004 |
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| 基金项目： | 中国科学院资助项目;上海宝钢集团公司资助项目 |
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| 摘 要： | 采用单辊搅拌冷却技术（Shearing—Cooling-Rolling，简称SCR）和在线固溶处理方法制备了Al-1．5Mg-0．3Sc（wt％）合金线材，研究了不同在线固溶温度条件下时效处理对合金线材的微观组织和拉伸性能的影响．结果表明：SCR技术对合金线材具有剪切细化功能，在铝基体内产生大量位错，时效析出大量Al3Sc强化相粒子，与位错交互作用．随着在线固溶温度下降，合金线材时效析出沉淀相Al3Sc的弥散度增加，合金线材的抗拉强度和延伸率提高；随着过时效时间的延长，合金线材的抗拉强度下降，线材的延伸率提高，时效8h，延伸率达峰值．
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| 关 键 词： | Al-Mg-Sc合金 时效处理 单辊搅拌冷却(SCR)技术 力学性能 |
| 文章编号： | 1005-3093(2006)03-0281-06 |
| 收稿时间： | 09 9 2005 12:00AM |
| 修稿时间： | 02 28 2006 12:00AM |
Effect of aging treatment on property of Al-1.5Mg-0.3Sc alloy wire formed by SCR technology |
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| ZHANG Xuefei,LI Junpeng,WEN Jinglin.Effect of aging treatment on property of Al-1.5Mg-0.3Sc alloy wire formed by SCR technology[J].Chinese Journal of Materials Research,2006,20(3):281-286. |
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| Authors: | ZHANG Xuefei LI Junpeng WEN Jinglin |
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| Affiliation: | School of Material and Metallurgy, Northeastern University, Shenyang 110004 |
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| Abstract: | Al-1.5Mg-0.3Sc alloy wires were prepared by SCR process and on-line solution, the effects of aging treatment on the microstructure, tensile property of the alloy wires formed by shearing-cooling-rolling (SCR) under different on-line solution temperature were studied. The results show that the grain of the alloy wires is very fine, Al3Sc dispersoids precipitating from the supersaturated solid solution in the heating process can effectively pin dislocation .As the on-line solution temperature decrease, the degree of dispersion of precipitated phase (Al3Sc) increase, while the tensile strength and elongation of the alloy increase. However, the tensile strength decrease under over-aging, but the elongation still increase with the increase of aging time. The elongation can be up to peak value at aging 8 h. |
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| Keywords: | Al-Mg-Sc alloy aging treatment shearing-cooling-rolling(SCR) mechanical property |
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