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首页> 外文会议>International Symposium on State-of-the-Art Application of Surface and Interface Analysis Methods to Environmental Material Interactions: in Honor of James E.Castle's 65th Year, Mar 26-27, 2001, Washington D.C. >STUDY OF THE STRUCTURE AND FORMATION OF CHROMATE CONVERSION COATINGS ON THIN FILMS OF COPPER-CONTAINING INTERMETALLIC CONSTITUENTS IN AA2024-T3
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STUDY OF THE STRUCTURE AND FORMATION OF CHROMATE CONVERSION COATINGS ON THIN FILMS OF COPPER-CONTAINING INTERMETALLIC CONSTITUENTS IN AA2024-T3

机译：AA2024-T3含铜中间成分薄膜上铬酸盐转化膜的结构与形成研究

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摘要

This paper reports surface chemical and structural data obtained from Chromate Conversion Coatings (CCC) formed on different thin film Intermetallic Compounds (IMCs) coupled to thin films of AA2024-T3 matrix compositions. The Structural data indicates that the CCC contains predominantly the Cr mixed oxide compound and the CCC structure changes to a higher long range ordering with a 20 hr aging period. The surface chemical results shows that the CCC is heterogeneously distributed across the AA2024-T3 surface. The results indicate that the CCC formed on the Al_2Cu and Al_2CuMg thin film analogs are thinner than for CCC formed on AA2024-T3 and the Al_(20)Cu_2(MnFe), thin film analog. Furthermore, the retention of ferricyanide on the surface and the lack of aluminum in the thin film analogs might be the main factors limiting CCC formation.
机译：本文报道了从铬酸盐转化膜（CCC）获得的表面化学和结构数据，该铬酸盐转化膜形成于与AA2024-T3基质组合物薄膜耦合的不同薄膜金属间化合物（IMC）上。结构数据表明，CCC主要包含Cr混合氧化物，并且CCC结构随着20小时的老化时间变化到较高的长程有序。表面化学结果表明，CCC在AA2024-T3表面上分布不均。结果表明，在Al_2Cu和Al_2CuMg薄膜类似物上形成的CCC比在AA2024-T3和Al_（20）Cu_2（MnFe）薄膜类似物上形成的CCC薄。此外，铁氰化物在表面上的保留以及薄膜类似物中铝的缺乏可能是限制CCC形成的主要因素。

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