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! |