评估航空铝合金剥蚀性能新方法的研究  

A NEW METHOD OF EVALUATING EXFOLIATION CORROSION OF AVIATION ALUMINUM ALLOYS

作　　者：何建平[1] 高亚东[1] 樊蔚勋[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,210016

出　　处：《腐蚀科学与防护技术》2003年第1期18-20,28,共4页Corrosion Science and Protection Technology

摘　　要：提出了一种新的评估航空铝合金剥蚀性能的电阻法 ,并结合LC4CS铝合金剥蚀性能和腐蚀电位的研究 。The exfoliation corrosion of aluminum alloys has a great effect on life length of aviation structure materials.The existing methods which studied the exfoliation behavior of aluminum alloys nearly laid emphasis on qualitative evaluation of the corrosion degree,except a few of which was of quantitative and indirect,and these methods couldn't well and truly forecast the residual life time of aluminum alloys corroded.The principle of measuring the metal corrosion rate with ohmic resistance methods had been described in various kinds of teaching books or monographs,however,after carefully analyzing the methods,it is showed that these methods cannot be used to determine the corrosion rate of aluminum alloys in situ.A new ohmic resistance method is brought forward in this paper,with the study on exfoliation corrosion behavior and corrosion potential of LC4CS aluminuni alloy,the feasibility of the method is further verified.

关 键 词：航空铝合金 剥蚀性能 电阻法 腐蚀速率 

分 类 号：V252.2[一般工业技术—材料科学与工程] TG174.21[航空宇航科学与技术—航空宇航制造工程]