采用等离子体电解氧化技术(Plasma Electrolysis Oxidation,PEO)在铸造铝硅合金表面制备了陶瓷层,电解液为磷酸盐系列.利用PEO自动采集控制系统对工作电流、电压进行实时采集,利用表面轮廓仪、SEM对陶瓷层的粗糙度和表面形貌进行了研究.结果表明:PEO过程中存在四个典型阶段性特征.所制备陶瓷层存在孔洞和微裂纹,尺寸随处理时间延长而增大.瞬态伏安特性研究表明,PEO存在阳极氧化和击穿放电两个重要特征,陶瓷的生长主要在击穿放电阶段,其陶瓷化过程为击穿放电、高温烧结、微弧熄灭、氧化物冷凝.
参考文献
| [1] | A. L. Yerokhin;X. Nie;A. Leyland;A. Matthews;S. J. Dowey .Plasma electrolysis for surface engineering[J].Surface & Coatings Technology,1999(2/3):73-93. |
| [2] | 关永军,夏原.等离子体电解沉积的研究现状[J].力学进展,2004(02):237-250. |
| [3] | 吴振强,夏原,张春杰,李光.钢基铝镀层转化为陶瓷层的演变规律研究[J].无机材料学报,2007(03):534-538. |
| [4] | Krishtal M M .Effect of structure os aluminium-silicon alloys on the process of formation and charateristcs of oxide layer in microarc oxidizing[J].Metal Science and Heat Treatment,2004,46(9-10):377-384. |
| [5] | Nykyforchyn HM.;Posuvailo VM.;Klapkiv MD. .Properties of synthesised oxide ceramic coatings in electrolyte plasma on aluminium alloys[J].Surface & Coatings Technology,1998(1/3):219-221. |
| [6] | N. M. Chigrinova;V. E. Chigrinov;A. A. Kukharev .FORMATION OF COATINGS BY ANODIC MICROARC OXIDATION AND THEIR OPERATION IN THERMALLY-STRESSED ASSEMBLIES[J].Powder Metallurgy and Metal Ceramics,2001(5/6):213-220. |
| [7] | Wang L;Nie X .Silicon effects on formation of EPO oxide coatings on aluminum alloys[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2006(1/2):211-218. |
| [8] | Wenbin Xue;Xiuling Shi;Ming Hua;Yongliang Li .Preparation of anti-corrosion films by microarc oxidation on an Al-Si alloy[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2007(14):6118-6124. |
| [9] | 薛文斌,王超,陈如意,李永良.ZL101铸造铝合金微弧氧化陶瓷层的组织和性能[J].材料热处理学报,2003(02):20-23. |
| [10] | 张永君,李文芳,王福会.高Si压铸Al合金ADC12的微弧氧化表面改性[J].金属学报,2005(12):1289-1292. |
| [11] | 罗胜联,周海晖,陈金华,旷亚非.ZL系列铸铝合金的微弧氧化[J].中国有色金属学报,2002(03):491-495. |
| [12] | O.P. Terleeva;V.I. Belevantsev;A.I. Slonova .Types of Discharges in Electrochemical Microplasma Processes[J].Protection of Metals,2003(1):50-54. |
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%