| 混合稀土对Cu-Al合金薄板内氧化组织和性能的影响 |
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| 引用本文： | 杨争,田保红,代永强,刘勇.混合稀土对Cu-Al合金薄板内氧化组织和性能的影响[J].热加工工艺,2009,38(18). |
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| 作者姓名： | 杨争 田保红 代永强 刘勇 |
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| 作者单位： | 1. 河南科技大学材料科学与工程学院,河南,洛阳,471003
2. 河南科技大学材料科学与工程学院,河南,洛阳,471003;河南有色金属材料科学与加工技术重点实验室,河南,洛阳,471003 |
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| 基金项目： | 河南省杰出青年科学基金资助项目，河南省高校创新人才培养工程 |
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| 摘 要： | 采用内氧化工艺,以工业N2中余氧为氧源,在950℃使Cu-Al-RE合金薄板内氧化成功制备了Al2O3/Cu复合材料,并对其显微硬度、电导率进行测试,用透射电子显微镜(TEM)对内氧化生成相和微观亚结构进行了分析.结果表明,与未添加混合稀土相比,Cu-Al-0.05(Ce+Y)合金950℃×2h内氧化层深度增加了22.8%,表现出明显的稀土催渗作用;TEM分析表明,在铜基体上弥散分布着大量细小均匀的γ-Al2O3颗粒;适晕添加混合稀土改善了合金的导电性,提高了合金的显微硬度,添加0.05%(Ce+Y)的Cu-Al-RE内氧化后综合性能最优.
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| 关 键 词： | 内氧化 混合稀土 微观组织 性能 |
Effect of Mixed Rare Earth on Microstructure and Properties of Cu-Al Alloy Sheet After Internal Oxidation |
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| YANG Zheng,TIAN Baohong,DAI Yongqiang,LIU Yong.Effect of Mixed Rare Earth on Microstructure and Properties of Cu-Al Alloy Sheet After Internal Oxidation[J].Hot Working Technology,2009,38(18). |
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| Authors: | YANG Zheng TIAN Baohong DAI Yongqiang LIU Yong |
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| Abstract: | Al_2O_3/Cu composite was prepared by internal oxidation for Cu-Al-RE alloy sheet with the retained oxygen of the commercial nitrogen gas at 950℃.The microhardness and the electric conductivity were measured.The microstructure of the composite was investigated by means of optics microscope and TEM.The results indicate that the depth of internal oxidation layer of Cu-Al-0.05 (Ce+Y) after internal oxidation at 950℃ for 2 h increases by 22.8% compared with without addition of the mixed rare rarth,which exhibits great catalysis of the rare earth for the internal oxidation processing of Cu-Al alloy.The TEM analysis shows that the fine γ-Al_2O_3 particles are dispersed in the copper matrix.The optimal addition of the mixed rare earth improves the electric conductivity and the microhardness of the internal oxidised Cu-Al alloy.The comprehensive properties of Cu-Al-RE with 0.05% (Ce+Y) after internal oxidation is best. |
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| Keywords: | Al2O3/Cu |
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