碳纤维增强高铝锌合金复合材料制备及摩擦性能研究  

Study on preparation and friction properties of carbon fiber reinforced high-Al-Zn alloy

作　　者：钟斌 呼帅邦 于正洋 张林 周龙龙 梁靖松 ZHONG Bin;HU Shuaibang;YU Zhengyang;ZHANG Lin;ZHOU Longlong;LIANG Jingsong(College of Mechanical Engineering,Xi an University of Science and Technology,Xi an 710054,China)

机构地区：[1]西安科技大学机械工程学院,西安710054

出　　处：《功能材料》2021年第10期10098-10102,10109,共6页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51705416)。

摘　　要：针对碳纤维增强高铝锌合金复合材料制备过程中碳纤维与金属基体界面结合性以及提高复合材料的摩擦性能等问题,研究了碳纤维表面金属化工艺,并以高铝锌合金ZA27为研究对象,采用含量为3%(体积分数)表面金属化短切碳纤维为增强材料,通过冷压烧结技术,制备了一种新型高铝锌合金复合材料。借助扫描电子显微镜对表面金属化碳纤维及复合材料的微观形貌、物相组成进行表征,并利用直线往复式摩擦磨损试验机对复合材料进行摩擦学性能测试。结果表明,电镀铜层呈径向生长分布在碳纤维表面,将碳纤维完全包覆,并无明显脱落。镀铜碳纤维与基体材料结合紧密并整体弥散分布到基体材料中。碳纤维增强高铝锌合金复合材料优化了传统材料的摩擦性能具有比ZA27更低的摩擦系数。Aiming at the problems of carbon fiber and metal matrix interface bonding during the preparation of carbon fiber reinforced high-aluminum-zinc composites and improving the friction performance of the composites,the surface metallization process of carbon fiber is studied,and the high-aluminum-zinc alloy ZA27 is used as the research object.3 vol%surface metallized chopped carbon fiber is used as a reinforcing material,and a new type of high-aluminum-zinc alloy composite material is prepared through cold pressing sintering technology.The microscopic morphology and phase composition of the surface metallized carbon fiber and composite materials are characterized by scanning electron microscope,and the tribological properties of the composite materials are tested by a linear reciprocating friction and wear tester.The results show that the electroplated copper layer grows radially on the surface of the carbon fiber,completely covering the carbon fiber,and does not fall off significantly.The copper-plated carbon fiber is tightly combined with the matrix material and dispersed into the matrix material as a whole.Carbon fiber reinforced high aluminum zinc alloy optimizes the friction performance of traditional materials and has a lower friction coefficient than ZA27.

关 键 词：碳纤维 高铝锌合金 复合材料 纤维表面金属化 摩擦性能 

分 类 号：TF124[冶金工程—粉末冶金]