Open AccessAnalysis for anodized film blackening of aluminum alloy components
Author(s) -
Xiaohui Zou,
Chengjun Jiang,
LV Chao-jun,
Xueliang Sun,
Jing Luo,
Chen Shu-mao
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 - 10.1088/1742-6596/1885/3/032003
Subject(s) - anodizing , alloy , metallurgy , aluminium , materials science , sulfuric acid , corrosion , microstructure , heat resistance , alonizing , 6111 aluminium alloy , anodic oxidation , 6063 aluminium alloy , anode , composite material , electrode , chemistry
Sulfuric acid anodic oxidation is an important means to improve the corrosion resistance of aluminum alloy components. The blackening phenomenon of aluminum alloy components after sulfuric acid anodizing is analyzed by chemical composition test, mechanical property test, process parameters analysis, metallographic examination and other tests. The analysis results are compared with normal color components after anodized. The result shows that the unsufficient solid solution heat treatment is the main reason for anodized film blackening of the aluminum alloy components, which result in the abnormal microstructures. At last, the measure of secondary heat treatment is taken to solve this problem effectively.