Performance of Tannin/Glycerol-Chromate Hybrid Conversion Coating on Aluminium
نویسندگان
چکیده
منابع مشابه
Performance of Tannin/Glycerol-Chromate Hybrid Conversion Coating on Aluminium
A smart hybrid conversion coating has been developed. Modifications of coating solutions with poly-hydroxyl organic materials to reduce the usual mud cracking pattern characteristics of chromate conversion coatings (CCCs) and improve its ability to release inhibitors to corroding sites have been achieved. The smart functionalised chromate conversion coating (SFCCC), developed on aluminium subst...
متن کاملCORROSION BEHAVIOUR OF A 2219 ALUMINIUM ALLOY TREATED WITH A CHROMATE CONVERSION COATING EXPOSED TO A 3.5 % NaCl SOLUTION
This study investigates the formation of a chromate conversion coating at Al-Cu-Fe-Mn intermetallic sites of an Al2219 alloy and the corrosion initiation at these sites in a 3.5 % NaCl solution, using SEM, AES and EDX. Changes in the surface chemistry were monitored after progressive exposures to the solution up to 42 hours. The coating was found to be thinner and more defective on the intermet...
متن کاملLocalized Corrosion on 2219 Aluminium Alloy Coated with a Titanium Based Conversion Coating
High strength aluminium alloys are widely employed in aerospace applications. However specific environmental conditions may trigger corrosion and therefore these alloys require additional protection. Most current conversion coatings used for this purpose are Cr(VI) based, and thus environmentally undesirable. A possible replacement is a Ti based coating, Nabutan STI/310. The aim of this work is...
متن کاملMorphology and Corrosion Performance of Chromate Conversion Coatings on Different Substrates
The aqueous corrosion resistances of galvalume (FeAl+Zn) and steel galvanized (Fe-Zn) alloys, passivated by immersion in chromating solution with different immersion times (0, 10, 30 y 60 s) are compared. The electrochemical behaviour of various chromated and non-chromated coatings was investigated in 3 wt-% NaCl solution using polarization techniques. For comparison, AISI 1010 carbon steel sub...
متن کاملthe effects of planning on accuracy and complexity of iranian efl students’ written narrative task performance
this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Materials Science and Chemical Engineering
سال: 2015
ISSN: 2327-6045,2327-6053
DOI: 10.4236/msce.2015.37001