Publication Date:
2019
Description:
〈p〉Publication date: 5 November 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Journal of Alloys and Compounds, Volume 808〈/p〉
〈p〉Author(s): Yixiong Liu, Zhenxing Zheng, Mengdi Mao, Tiwen Lu, Genghua Cao, Dezhi Zhu, Weiping Chen〈/p〉
〈div xml:lang="en"〉
〈h5〉Abstract〈/h5〉
〈div〉〈p〉To investigate the effects of micron heterogeneous metal particles on the microstructure and mechanical properties of 7075Al hybrid composites, Ni based particles and Ti based particles in the same size were incorporated into SiC〈sub〉p〈/sub〉/7075Al composites using squeeze casting separately. The interfacial structure and mechanical property relationship of the hybrid composites was investigated using SEM, TEM, XRD and tensile tests. And the strengthening effects of heterogeneous metal particles were discussed. Results shown that different interfacial structures have been formed at the interface of the metal particles during the casting processes. Ni based particles formed low-temperature NiAl〈sub〉3〈/sub〉 intermetallic reaction layers. In contrast, only Ti–Al interdiffusion metallurgical bonding were detected at the interface of the Ti based particles. The composites incorporated with Ti based particles achieved higher tensile strength and plasticity of 573 MPa and 0.65%, respectively. The interdiffusion metallurgical bonding prove to be a more desired interfacial structure and would ensure the strengthening effects of metal particles.〈/p〉〈/div〉
〈/div〉
Print ISSN:
0925-8388
Electronic ISSN:
1873-4669
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
