李美霞,罗骥,郭志猛,方哲成

• 1:北京科技大学材料科学与工程学院

摘要(Abstract)：

利用内氧化法制备出Al2O3弥散强化铜复合材料,通过场发射扫描电子显微镜(FE-SEM)结合X射线衍射等手段,对材料组织结构和性能进行了研究。结果表明:γ-Al2O3弥散相粒子在基体内均匀分布,尺寸约6nm,间距30～50nm;挤压态棒材(φ25mm)经99.8%变形量冷拉拔后,呈现均匀、连续的纤维组织,纤维长宽比大于20,抗拉强度达680MPa;挤压态棒材的电导率87%IACS,软化温度850℃。

关键词(KeyWords)： 弥散强化铜;大塑性变形;抗拉强度

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李美霞,罗骥,郭志猛,方哲成

DOI: 10.13289/j.issn.1009-6264.2010.04.003

参考文献(References)：

• [1]程建奕,汪明朴,李周,等.纳米Al2O3粒子弥散强化铜合金冷加工及退火行为[J].稀有金属材料与工程,2004,33(11):1178-1181.CHENG Jian-yi,WANG Ming-pu,LI Zhou,et al.Cold drawing and annealing behavior of nano-sized Al2O3dispersion strengthened copper[J].Rare Metal Materials and Engineering,2004,33(11):1178-1181.
• [2]宁爱林,申奇志,雷先明,等.弥散强化铜的研制现状与展望[J].邵阳高等专科学校学报.2001,3(14):165-166.NING Ai-lin,SHEN Qi-zhi,LEI Xian-ming,et al.Review in research and development of dispersion-strengthened copper[J].Journal of Shaoyang College,2001,3(14):165-166.
• [3]程建奕,汪明朴,李周,等.内氧化法制备的Al2O3-Cu合金的显微组织与性能[J].材料热处理学报,2003,24(1):23-27.CHENG Jian-yi,WANG Ming-pu,LI Zhou,et al.Properties and microstructure of Cu-Al2O3alloy produced by internal oxidation[J].Transaction of Materials and Heat Treatment,2003,24(1):23-27.
• [4]申玉田,崔春翔,孟凡斌,等.高强度高导电Cu-Al2O3复合材料的制备[J].金属学报,1999,35(8):888-892.SHEN Yu-tian,CUI Chun-xiang,MENG Fan-bin,et al.Fabrication of nanometer Al2O3-Cu composites with high strength and electric conductivity[J].Acta Metallurgica Sinica,1999,35(8):888-892.
• [5]申玉田,孙建忠.Cu-Al合金内氧化产物及分布的研究[J].粉末冶金技术,2004,22(3):131-134.SHEN Yu-tian,SUN Jian-zhong.Study on internal oxidation product of Cu-Al alloy and its distribution[J].Powder Metallurgy Technology,2004,22(3):131-134.
• [6]Li Guo-bin,Sun ji-bing.Fabrication of the nanometer Al2O3/Cu composite by internal oxidation[J].Journal of Materials Processing Technology,2005,170:336-340.
• [7]美国金属学会.金属手册[M].北京:机械工业出版社.1992:966-969.
• [8]Synk J E,Vadula K.Structure and mechanical behaviour of powder processed dispersion strengthened copper[J].Materials Science and Technology,1987,3:72-75.
• [9]刘平,赵冬梅,田保红.高性能铜合金及其加工技术[M].北京:冶金工业出版社,2005:128-131.
• [10]王占学.塑性加工金属学[M].北京:冶金工业出版社,1991:181-186.

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