王爱琴,田捍卫,韩辉辉,谢敬佩

• 1:河南科技大学材料学院
• 2:有色金属共性技术河南省协同创新中心

摘要(Abstract)：

采用粉末冶金法制备Sip/Al基复合材料,利用光学显微镜及万能拉伸试验机对Sip/Al复合材料中Si相形貌演变规律和力学性能进行了研究,用奥斯特瓦尔德熟化机制解释了Si颗粒长大机理。研究表明:随着烧结温度的提高,Sip/Al复合材料中Si元素先脱溶析出形成细小的Si颗粒后聚集长大。Sip/Al基复合材料热挤压后,基体中分布着弥散的Si颗粒,固溶处理后,Si颗粒形态发生钝化变得圆整,而固溶处理4 h后,Si颗粒聚集长大并出现搭接现象。Sip/Al基复合材料抗拉强度随着固溶时间的延长先增加后降低,在固溶处理2 h时达到最大值228.1 MPa。

关键词(KeyWords)： Sip/Al基复合材料;粉末冶金法;固溶处理;Si相形貌演变;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51371077)

作者(Author): 王爱琴,田捍卫,韩辉辉,谢敬佩

DOI: 10.13289/j.issn.1009-6264.2017-0218

参考文献(References)：

• [1]张克武,赵海东,欧阳晓贤,等.不同挤压力下凝固的Al-Si-Cu-T4的组织与性能[J].中国有色金属学报,2009,19(4):625-632.ZHANG Ke-wu,ZHAO Hai-dong,OUYANG Xiao-xian,et al.Microstructures and mechanical properties of Al-Si-Cu-T4 solidified at different squeeze pressures[J].The Chinese Journal of Nonferrous Metals,2009,19(4):625-632.
• [2]李沛勇,戴圣龙,于海军.快速凝固/粉末冶金铝合金的研究进展和应用前景[J].中国有色金属学报,2002,12:37-42LI Pei-yong,DAI Sheng-long,YU Hai-jun.Developments and application prospects of rapidly solidified powder metallurgy aluminum alloys[J].The Chinese Journal of Nonferrous Metals,2002,12:37-42.
• [3]徐映坤,宋治鉴.Si相尺寸对快凝Al-20Si-1.3Cu-1Mg合金机械性能的影响[J].材料科学与工艺,1994(1):59-63.XU Ying-kun,SONG Zhi-jian.Effect of Si phase particle size on the mechanical properties of rapidly solidified Al-20Si-1.3Cu-1Mg alloy[J].Materials Science and Technology,1994(1):59-63.
• [4]杨伏良,甘卫平,陈招科,等.快速凝固/粉末冶金制备高硅铝合金材料的组织与力学性能[J].中国有色金属学报,2004,14(10):1717-1722.YANG Fu-liang,GAN Wei-ping,CHEN Zhao-ke,et al.Microstructures and mechanical properties of high-silicon aluminum alloy fabricated by rapid solidification/powder metallurgy[J].The Chinese Journal of Nonferrous Metals,2004,14(10):1717-1722.
• [5]王艳丽,张建波,王杰芳.固溶处理对共晶Al-Si合金中硅相的影响[J].轻合金加工技术,2011,39(2):47-50.WANG Yan-li,ZHANG Jian-bo,WANG Jie-fang.Effect of solution heat treatment on silicon phase of eutectic Al-Si alloy[J].Light Alloy Fabrication Technology,2011,39(2):47-50.
• [6]梁红玉,毛协民,胡志恒.过共晶Al-Si合金快速凝固组织演变[J].中国有色金属学报,2006,16(11):1924-1930.LIANG Hong-yu,MAO Xie-min,HU Zhi-heng.Microstructure evolution of hypereutectic Al-Si alloy during rapid solidification[J].The Chinese Journal of Nonferrous Metals,2006,16(11):1924-1930.
• [7]孙瑜,陈晋,孙国雄.铝硅合金硅相演变及其对力学性能的影响[J].特种铸造及有色合金,2001(6):1-3.SUN Yu,CHEN Jin,SUN Guo-xiong.Evolution of Si phase in Al-Si alloy and its effect on mechanical properties[J].Special-cast and Non-ferrous Alloys,2001(6):1-3.
• [8]郑子樵.材料科学基础[M].长沙:中南大学出版社,2005.
• [9]Jayanth C S,Nash P.Factors affecting particle-coarsening kinetics and size distribution[J].Journal of Materials Science,1989,24(9):3041-3052.
• [10]唐鹏钧,何晓磊,王兴元,等.快速凝固/粉末冶金Al-20Si-7.5Ni-3Cu-1Mg-0.25Fe合金的显微组织与力学性能[J].航空材料学报,2013,33(3):12-17.TANG Peng-jun,HE Xiao-lei,WANG Xing-yuan,et al.Microstructure and mechanical properties of Al-20Si-7.5Ni-3Cu-1Mg-0.25Fe alloy prepared by rapidly solidified powder metallurgy[J].Journal of Aeronautical Materials,2013,33(3):12-17.

文章评论(Comment)：