摘要
The effect of artificial ageing on the corrosion performance of 6005A Al alloy was investigated by hardness test, intergranular corrosion test, optical microscopy and TEM observation. The results show that the intergranular corrosion susceptibility of 6005A Al alloy is related to the artificial ageing time. The accelerated corrosion test reveals that the intergranular corrosion (IGC) of 6005A Al alloy is low susceptible to in the beginning of the artificial ageing after water quenched. However, IGC susceptibility increases with the increase of aging time, and reaches the peak value after artificial ageing for 12 h, while the hardness is the highest. The overageing reduces the IGC susceptibility, however, the slight pitting is produced. The increased IGC susceptibility is related to the grain boundary. The pitting susceptibility by over ageing is evolved due to coarsening of the Q'-phase particles.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 2174-2180 |
| 页数 | 7 |
| 期刊 | Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals |
| 卷 | 22 |
| 期 | 8 |
| 出版状态 | 已出版 - 8月 2012 |
| 已对外发布 | 是 |