Microstructure and Properties of SiCp/Al Composite Materials Fabricated via Powder Packed Resistance Additive Manufacturing

作     者：Wang Wenqin Chen Jigen Yan Xiaosong Han Zhaoxian Lin Gang Chen Jie 王文琴;陈吉根;晏小松;韩召先;林刚;陈杰

作者机构：School of Mechanical and Electrical EngineeringNanchang UniversityNanchang 330031China Institute of Special Equipment Inspection and ResearchJiangxi General Institute of Testing and CertificationNanchang 330029China Jiangxi Sinohexaco Helicopter Co.LtdJingdezhen 333032China Jiangxi Haoyu Heavy Industry Co.LtdRuijin 341000China 

出 版 物：《稀有金属材料与工程》 (Rare Metal Materials and Engineering)

年 卷 期：2024年第53卷第11期

页      面：3035-3045页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：National Natural Science Foundation of China(52205375) Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province(20204BCJ23003) Jiangxi Provincial Natural Science Foundation(20224BAB214010,20232BAB204049,jxsq2019201118) 

主　　题：additive manufacturing resistance seam welding SiCp/Al hardness welding speed 

摘      要：SiC particle(SiCp)/Al composite materials were fabricated via powder packed resistance seam welding additive *** influence of welding speed on microstructure and mechanical properties of the specimen was investigated,elucidating the formation and fracture mechanism of single-pass multi-layer *** results demonstrate that a dense internal structure of the specimen characterized by uniformly dispersed SiCp embedded within the Al matrix is ***,particle agglomeration and porosity defects are *** porosity increases with the increase in welding speed,and the microstructure of the RSAM-24 specimen has the highest density,characterized by a density of 2.706 g/cm^(3)and a porosity of 1.672%.The mechanical properties of the specimens decrease as the welding speed *** mechanical properties are obtained when the welding speed is set as 24 cm/***,the average hardness,tensile strength and elongation values are 463.736 MPa,52.16 MPa and 2.2%,*** tensile specimens predominantly exhibit fracture along the interlayer bonding interface and the interface between the Al matrix and SiC particles,and the damage mode is ductile fracture.