The effect of small amount gallium (up to 0.06%) on the corrosion behavior of pure aluminum (99.99%,4N) in chloride solution was investigated using a potentiodynamic polarization technique.It has been found that the open circuit corrosion potential and the pitting potential shifted in the active (negative) direction with increasing gallium content,while corrosion rate and pitting occurrence factor for aluminum increased.The effect of gallium on the degradation of corrosion resistance is rather small while the gallium content is below 0.03mass%.The gallium content should be kept less than 0.03mass% in the pure aluminum.
参考文献
| [1] | A.Mance;D.Cerovie;A.Mihajlovic .[J].Journal of Applied Electrochemistry,1985,15:415. |
| [2] | C.B.Breslin;W.M.Carroll .[J].Corrosion Science,1992,33:1735. |
| [3] | H.A.El Shayeb;F.M.Abd El Wahab;S.Zein El Abedin .[J].Corrosion Science,2001,43:643. |
| [4] | A.R.Despic;R.M.Stevanovic;A.M.Vorkapic'e.A new method of obtaining electrochemically active aluminum[A].Extended Abstracts,Berkeley,CA,1984:2-19. |
| [5] | Z.Szklarska-Smialowska.Pitting Corrosion of Metals[M].NACE,Houston,Texas,1986 |
| [6] | JT Reading;JJ Newport .[J].Materials Protection,1966,5:15. |
| [7] | Osami Seri;Yuuki Hoshi .Effect of EDTA on corrosion behavior of 1100 pure aluminum[J].Japanese Journal of Institute of Light Metals,2006,56(08):435-440. |
| [8] | DO Flamini;L Cunci;SB Saidman .Electrochemical characterization of gallium-aluminum amalgams[J].Materials Chemistry and Physics,2008,108:33-38. |
| [9] | C.D.S.Tuck;J.A.Hunter;G.M.Scamans .[J].Journal of the Electrochemical Society,1987,134:2970. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%