SiC_(p)体积分数对SLM成形SiC_(p)/AlSi10Mg复合材料组织及力学性能的影响  

Effect of SiC_(p)Volume Fraction on Microstructure and Mechanical Properties of SiC_(p)/AlSi10Mg Composites by SLM

作　　者：陈焱 张昭 党博[1] 许军锋[1] 坚增运[1] CHEN Yan;ZHANG Zhao;DANG Bo;XU Junfeng;JIAN Zengyun(School of Materials Science and Chemical Engineering,Xi’an Technological University,Xi’an 710021,China)

机构地区：[1]西安工业大学材料与化工学院,西安710021

出　　处：《西安工业大学学报》2023年第4期362-368,共7页Journal of Xi’an Technological University

基　　金：国家自然科学基金项目(51971166)。

摘　　要：为了解SiC_(p)体积分数对SLM成形SiC_(p)/AlSi10Mg复合材料的力学性能的影响规律,本文通过改变SiC_(p)/AlSi10Mg复合材料中SiC_(p)的体积分数,研究了不同SiC_(p)体积分数下复合材料的显微组织及力学性能变化规律。研究结果表明:随着SiC_(p)体积分数的增加,复合材料的中的冶金孔洞的增多及Si形貌的改变是其力学性能降低的主要原因。当SiC_(p)体积分数为3%时,复合材料的抗拉强度及延伸率最高,分别达到417.3MPa和4.9%。The paper studies how the change in the SiC_(p)volume fraction influences the microstructure and the mechanical properties of SiC_(p)/AlSi10Mg composites fabricated by SLM.The results show that increasing SiC_(p)volume fraction causes an increase in metallurgical pores and a change in Si morphology,which are the major contributor to the degradation of the mechanical properties of the composites.When the SiC_(p)volume fraction is 3%,its tensile strength and ductility reach the maximum values of 417.3 MPa and 4.9%respectively.

关 键 词：激光选区熔化 SiC_(p)/AlSi10Mg复合材料 体积分数 抗拉强度 

分 类 号：TB333[一般工业技术—材料科学与工程]