Open AccessMicrostructure and Physical Properties of Alloy Brazed with Filler by Mapping Scanning Analysis and Wettability Test
Author(s) -
Xiupeng Li,
Yunyue Elita Li,
Shengwen Zhong,
Yuanxun Shen,
Weimin Long,
Yinyin Pei,
Luyi Wang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2083/2/022086
Subject(s) - brazing , materials science , liquidus , solidus , wetting , filler metal , shear strength (soil) , microstructure , alloy , joint (building) , composite material , filler (materials) , metallurgy , phase (matter) , chemistry , structural engineering , welding , environmental science , arc welding , organic chemistry , soil science , engineering , soil water
In this paper, a new type of AlSiMgCuNiAg filler metal was developed. The solidus temperature of the filler metal is 509.1°C and the liquidus temperature is 531.3°C. The filler metal has a good wetting and spreading effect on the surface of 6061 aluminum alloy. The CuAl 2 phase in the brazing seam was greatly aggregated after brazed, while the CuAl 2 phase was reduced and Mg 2 Si strengthening phase was formed when the brazed joints with heat treatment. The average shear strength of the brazed joint without heat treatment was 47.1MPa, and the average shear strength of the brazed joint with heat treatment reached to 108.7Mpa. The strength of the brazed joint with heat treatment was increased by about 131% relative to the strength of the brazed joint without heat treatment.