Jitai NIU
,
Wei GUO
,
Qingchang MENG
,
Xinmei ZHANG
,
Xingqiu LIU
,
Guangtao ZHOU
材料科学技术（英）
The liquid-phase-impacting (LPI) diffusion welding mechanism and microstructure of welded joint of aluminum matrix composite SiCp/101A have been studied. It shows that by LPI diffusion welding, the interface state between SiC particle and matrix is prominent, the harmful microstructure or brittle phase can be restrained from the welded joint. Moreover, the density of dislocation in the matrix near the interface and in the matrix are all so higher than that of parent composite, the dislocation entwists each other intensively resulted in welding the composite successfully.
关键词:
Aluminum matrix composite
,
null
,
null
Wei GUO
,
Qingchang MENG
,
Jitai NIU
,
Xinmei ZHANG
材料科学技术（英）
In this paper, a new method for welding SiCp/101A was put forward. It is LPI (liquid-phase-impacting) diffusion welding. Through LPI diffusion welding SiCp/101A aluminum, the effect of welding parameters on the welded joint property was investigated, and the optimal welding parameters were brought forward at the same time. The microstructure of joint was analyzed by means of optical-microscope, scanning electron microscope in order to study the relationship between the macro-properties of joint and the microstructure. The results show that LPI diffusion welding could be used for welding aluminum matrix composites SiCp/101A successfully.
关键词:
Aluminum matrix composite
,
null
,
null
