摘要
提出一种挤压头与板件截面积之比小于1的复合材料制备工艺方法,对浸渗过程进行了分析,并探究了不同工艺参数对浸渗质量的影响。优选的工艺参数:浇注温度为950℃,预热温度为560℃、挤压压力为35 MPa。采用此参数制备了浸渗良好的环形薄板件。所制备的复合材料密度比基体合金降低了14.8%,抗拉强度为125 MPa,比基体提高了58%。
A method for preparing composites with the cross-sectional area ratio of punch to sheet less than 1 was pro⁃posed.The infiltration process was analyzed,and effects of different process parameters on infiltration quality were investigated.The optimized process parameters were presented as follows:pouring temperature of 950℃,preheating temperature of 560℃and extrusion pressure of 35 MPa,which were used to prepare well-impregnated ring-shaped thin sheet.The density of fabricated composites is 14.8%lower than that of the matrix alloy,and the tensile strength is 125 MPa,which is 58%higher than that of the matrix.
作者
贠康
李小博
周计明
齐乐华
YUN Kang;LI Xiaobo;ZHOU Jiming;QI Lehua(School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072;Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials,Xi’an 710072)
出处
《特种铸造及有色合金》
CAS
北大核心
2024年第10期1297-1301,共5页
Special Casting & Nonferrous Alloys
基金
国家自然科学基金资助项目(52231004)。
关键词
液固挤压浸渗
碳纤维铝基复合材料
板件
挤压头
Liquid-solid Extrusion Infiltration
Carbon Fiber Aluminum Matrix Composite
Sheet
Punch
