水溶液中LC4铝合金的微生物腐蚀缓蚀杀菌剂.pdf

21 Vol.21Sup. 2000 4 ACT A AERONAUTICA ET AST RONAUT ICA SINICA Apr. 2000 : 1000-6893(2000) S0-0S48-05 4 LC , , , ( , 100083) STUDY ON INHIBITORS OF MICROBIOLOGICALLY INDUCED CORROSION 4 OF LC ALUMINUM ALLOY IN AN AQUEOUS SOLUTIONS IU Jian-hua, YA NG Ying-guang, WU Xiao-ling, I Song-mei (Depart ment of Mat erials Science and Engineering Beijing University of, Aeronautics and Astronautics, Beijing100083, China) : , C4 ( - , ) : sulfate reducing bacteria SRB SRB C4 , ; SRB , - SRB Cl C4 4 , BHA-2 , 1227 : C4 ; ; (SRB) ; :T G 172.7:A Abstract: T he behaviors of microbiologically induced corrosion of C4 aluminum alloy in 3. 5% NaCl solutions - ( ) w ith and w ithout sulfate reducing bacteria SRB under anaerobic conditions w ere invest igated by using electrochemical polarizat ion and surface analysis It w as found that the SRB could reduce the pitt ing corrosion. on t he surface of C4 aluminum alloy. At the same time, the corrosion att ack of C4 alum inum alloy was accelerated by SRB. T he corrosion of C4 aluminum alloy in the environment containing SRB was pitting. The efficiencies of inhibition and sterilization of four inhibitors BHA( -1, BHA-2, BHA-3, 1227) , w ere 4 . researched for C alloy corrosion in solutions containing SRB It w as demonstrated that the inhibit ors had the double funct ion of inhibition-sterilization, an