首页 | 本学科首页   官方微博 | 高级检索  
     


Intergranular corrosion behavior of the 7075-T6 aluminum alloy under different annealing conditions
Authors:Amjad Saleh El-Amoush
Affiliation:Al-Balqa Applied University, College of Engineering, Materials and Metallurgical Eng Dept, Al-Salt 19117, P.O. Box 7181, Jordan
Abstract:The effect of annealing conditions producing various grain sizes on the intergranular corrosion behavior of high-strength aluminum alloy type 7075-T6 was investigated using electrochemical polarization techniques. Aluminum alloy specimens with large grain size exhibited lower breakdown potentials in deaerated 0.5 M NaCl solution. The breakdown potentials decreased with increasing grain size. Microscopic observations of the exposed surfaces during potentiostatic polarization testing showed that the coarse grain structure promotes intergranular crack growth.
Keywords:Corrosion   Annealing   EDS   SEM
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号