TY - JOUR
T1 - Properties of aluminum alloy anodic films formed in three kinds of solutions
AU - Liu, Jian Hua
AU - Liu, Zhou
AU - Yu, Mei
AU - Li, Song Mei
AU - Chen, Gao Hong
PY - 2012/7
Y1 - 2012/7
N2 - The properties of anodic films formed in chromic, boric-sulfuric and adipic-sulfuric acid (CAA, BSAA and ASAA, respectively) on LY12 aluminum alloy were studied by morphology characterization, current-voltage response test, electrochemical impedance spectroscopy (EIS) and fatigue test methods. It is indicated that in contrast with BSAA film, CAA and ASAA films have less defects and a smoother periphery. All of three kinds of anodic films have perfect corrosion resistant after immersed in 5% NaCl solution for 80 d. The resistance value (R b) of the barrier layers of BSAA decreases in greatest, while the R b values of CAA and ASAA decrease by 75% and 78%, respectively. From fatigue test results, it is confirmed that CAA reduces the fatigue life of the matrix at a little, about 14%, ASAA, about 20%, and BSAA about 25%, indicating that BSAA has the greatest impact on the fatigue life of the matrix among the three treatments.
AB - The properties of anodic films formed in chromic, boric-sulfuric and adipic-sulfuric acid (CAA, BSAA and ASAA, respectively) on LY12 aluminum alloy were studied by morphology characterization, current-voltage response test, electrochemical impedance spectroscopy (EIS) and fatigue test methods. It is indicated that in contrast with BSAA film, CAA and ASAA films have less defects and a smoother periphery. All of three kinds of anodic films have perfect corrosion resistant after immersed in 5% NaCl solution for 80 d. The resistance value (R b) of the barrier layers of BSAA decreases in greatest, while the R b values of CAA and ASAA decrease by 75% and 78%, respectively. From fatigue test results, it is confirmed that CAA reduces the fatigue life of the matrix at a little, about 14%, ASAA, about 20%, and BSAA about 25%, indicating that BSAA has the greatest impact on the fatigue life of the matrix among the three treatments.
KW - Adipic- sulfuric acid anodization
KW - Anodic films
KW - Boric-sulfuric acid anodization
KW - Chromic acid anodization
KW - LY12 aluminum alloy
UR - https://www.scopus.com/pages/publications/84867283329
M3 - 文章
AN - SCOPUS:84867283329
SN - 1004-0609
VL - 22
SP - 2031
EP - 2039
JO - Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
JF - Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
IS - 7
ER -