摘要
采用球磨机械混粉的方法制备了锌基复合粉末,并通过真空烧结的方法制备了CNTs-Al-Zn复合材料,重点研究了球磨转速、压制压力、烧结温度等因素对复合材料的影响,进而获得最佳工艺。结果表明,最佳工艺条件为:球磨转速400 r/min,压制压力300 MPa,烧结温度480℃,在此工艺下制备的CNTs-Al-Zn复合材料的屈服强度、拉伸强度、拉伸率、烧结密度及显微硬度等性能都得到显著提高,且材料内部组织均匀致密,无明显孔隙现象。
In this study,zinc based composite powder was prepared by ball milling and mechanical mixing method,and CNTs-Al-Zn composites were prepared through the method of vacuum sintering.Effects of ball milling speed,pressure and temperature on the properties of CNTs-Al-Zn composites were mainly researched,and the best process was obtained.The results indicated that the optimal processes were as follows:milling speed was 400 r/min,pressing pressure was 300 MPa and sintering temperature was 480℃.The yield strength,tensile strength,tensile rate,sintered density and microhardness of the CNTs-Al-Zn composites were significantly improved,and the internal structure was homogeneous and dense without obvious pores.
作者
朱艳青
ZHU Yanqing(Department of Mechanical and Electrical Engineering,Yongcheng Vocational College,Yongcheng 476600,China)
出处
《电镀与精饰》
CAS
北大核心
2018年第9期24-28,共5页
Plating & Finishing
