| DUAN Guan-wen,LI Jin-fu,WANG Yong-jun,XU Zhi-xiong.Research of Micro-arc Oxidation of Aluminum Alloy[J],36(3):30-33 |
| Research of Micro-arc Oxidation of Aluminum Alloy |
| Received:February 05, 2007 Revised:June 10, 2007 |
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:Aluminum alloy Micro-arc oxidation Ceramic coating α-Al203 γ-Al203 |
| Author | Institution |
| DUAN Guan-wen |
Yantai Branch of No. 52 Institute of China Ordnance Industry, Yantai , China |
| LI Jin-fu |
Yantai Branch of No. 52 Institute of China Ordnance Industry, Yantai , China |
| WANG Yong-jun |
Yantai Branch of No. 52 Institute of China Ordnance Industry, Yantai , China |
| XU Zhi-xiong |
Yantai Branch of No. 52 Institute of China Ordnance Industry, Yantai , China |
|
| Hits: |
| Download times: |
| Abstract: |
| Ceramic coating was obtained by micro-arc oxidation on LY12 aluminum alloy in sodium silicate and sodium hydroxide electrolyte, and examined by SEM and TEM. The regulations of current and voltage were studied. Results show that a compact ceramic coating with thickness of 200p4m is obtained by micro-arc oxidation on Al surface, nano-crystalloid emerges in the joint that lies between the coating and Al. The results show that both the voltage and the current play very important roles in the thickness, hardness and surface roughness of the ceramic coating. Comparing the ceramic coating attrition tested by steel ball and ceramic ball, the attrition with the steel ball is adhesion attrition, and the attrition with ceramic ball is abrasive attrition. |
| Close |
|
|
|