Formation Mechanism of Layered Structure Near Fusion Boundary in Dissimilar-Filler Welding of Aluminum Alloys

2021 ◽  
Vol 52 (4) ◽  
pp. 1174-1179
Author(s):  
Qipeng Dong ◽  
Xiaming Chen ◽  
Hiromi Nagaumi ◽  
Qingyu Zhang ◽  
Xiaonan Wang ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Formation Mechanism ◽  
Layered Structure ◽  
Fusion Boundary

scholarly journals The Formation Mechanism of a Self-Organized Periodic-Layered Structure at the Solid-(Cr, Fe)2B/Liquid-Al Interface

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3869
Author(s):  
Mengmeng Wang ◽  
Jiang Ju ◽  
Jingjing Li ◽  
Yang Zhou ◽  
Haiyang Lv ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Formation Mechanism ◽  
Layered Structure ◽  
Electron Backscatter Diffraction ◽  
Reaction Products ◽  
Phase Layer ◽  
Transmission Electron ◽  
Potential Formation ◽  
Backscatter Diffraction ◽  
Periodic Layered Structure

A periodic-layered structure was observed in solid-(Cr, Fe)2B/liquid-Al diffusion couple at 750 °C. The interface morphology, the reaction products, and the potential formation mechanism of this periodic-layered structure were investigated using an electron probe microanalyzer (EPMA), scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), transmission electron microscopy (TEM), and energy-dispersive spectroscopy (EDS). The results indicate that the reaction between (Cr, Fe)2B and liquid Al is a diffusion-controlled process. The formation of intermetallics involves both the superficial dissolution of Fe and Cr atoms and the inward diffusion of Al at the interface. The layered structure, as characterized by various experimental techniques, is alternated by a single FeAl3 layer and a (FeAl3 + Cr3AlB4) dual-phase layer. A potential mechanism describing the formation process of this periodic-layered structure was proposed based on the diffusion kinetics based on the experimental results.

Morphology and formation mechanism of equiaxed grains along the fusion boundary in Al–Li alloy weld seam

2018 ◽  
Vol 5 (11) ◽  
pp. 116523 ◽  
Author(s):  
Ling Xia ◽  
Xiaohong Zhan ◽  
Haisong Yu ◽  
Peiyun Xia ◽  
Xiaosong Feng ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Weld Seam ◽  
Fusion Boundary ◽  
Equiaxed Grains ◽  
Alloy Weld

scholarly journals Formation mechanism of giant intermetallic compounds in 7N01 aluminum alloys.

1994 ◽  
Vol 44 (12) ◽  
pp. 715-720
Author(s):  
Katsuyuki YOSHIKAWA ◽  
Yuichi ANDO ◽  
Toshimasa SAKAMOTO ◽  
Kenzo IIZUKA
Keyword(s):  
Aluminum Alloys ◽  
Intermetallic Compounds ◽  
Formation Mechanism

Formation mechanism of periodic layered structure in Ni3Si/Zn system

2014 ◽  
Vol 24 (12) ◽  
pp. 4053-4058 ◽  
Author(s):  
Ya LIU ◽  
Zhen DONG ◽  
Yuan-yuan SONG ◽  
Xu-ping SU ◽  
Hao TU
Keyword(s):  
Formation Mechanism ◽  
Layered Structure ◽  
Periodic Layered Structure
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