journal article·2018-05

Improved two-step Brytal process for electropolishing of aluminum alloys

M. Sepúlveda, D. Quintero, J.G Castaño, F. Echeverría

Corrosion Science· Volume 136
Publisher page

Abstract

Abstract Three aluminum alloys (5N, 1100 and 8005) were electropolished with an environmentally friendly Brytal process in order to evaluate the influence of the substrate and the operating parameters in the roughness and reflectivity of the specimens. Electropolishing was implemented in two-step, allowing lower roughness than those reported in the one-step process. Morphology and second-phase particles on electropolished samples were analyzed by SEM, roughness was measured by means of AFM and reflectivity was measured with a UV–vis spectrophotometer getting a high reflectivity for high purity aluminum and for two aluminum alloys in which reflectivity decreased due to second phase particles.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Anodic Oxide Films and Nanostructures · Aluminum Alloy Microstructure Properties · Corrosion Behavior and Inhibition

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (30)

Show source-provided references
1. Hatch · 1984
2. The effects of electropolishing on the nanochannel ordering of the porous anodic alumina prepared in oxalic acid10.1007/s10008-008-0550-2 ↗
3. The chemical polishing of aluminium10.1080/00202967.1973.11870258 ↗
4. Anodic oxidation of aluminium and its alloys
5. Wernick · 1987
6. Large-area self-ordered aluminium sub-micrometre dot arrays prepared by electropolishing on polycrystalline aluminium at constant current10.1016/j.corsci.2011.05.028 ↗
7. Electroluminescence of aluminium during electropolishing in nitric acid10.1016/S1388-2481(00)00084-9 ↗
8. A study of the morphology and optical properties of electropolished aluminum in the Vis-IR region10.1016/S1452-3981(23)15124-8 ↗
9. Analysis of nanopore arrangement of porous alumina layers formed by anodizing in oxalic acid at relatively high temperatures10.1016/j.apsusc.2014.03.154 ↗
10. Pit-free electropolishing of aluminum and its application for process chamber10.1116/1.581258 ↗
11. Aluminum and sulfur impurities in electropolishing baths10.1016/j.physc.2006.03.063 ↗
12. Fabrication of nanocrystalline Si:H nanodot arrays with controllable porous alumina membranes10.1016/j.tsf.2005.07.318 ↗
13. Effects of ordering quality of the pores on the photoluminescence of porous anodic alumina prepared in oxalic acid10.1016/j.jlumin.2009.11.035 ↗
14. Preparation of transparent anodic alumina with ordered nanochannels by through-thickness anodic oxidation of aluminum sheet10.1016/j.matchemphys.2007.03.019 ↗
15. Anodic coatings for temperature control in space vehicles
16. Near-infra-red diffuse reflectivities of natural and man-made materials10.1088/0022-3727/2/2/308 ↗
17. Palik · 1998
18. Anodic dissolution of titanium in NaCl-containing ethylene glycol10.1016/j.electacta.2007.11.074 ↗
19. Anodic dissolution of titanium in chloride-containing ethylene glycol solution10.1016/j.electacta.2009.08.047 ↗
20. Characterization of second-phase particles in two aluminium foil alloys10.1016/j.jallcom.2015.11.111 ↗
21. Vander Voort · 2004
22. Mondolfo · 1976
23. Role of intermetallic phases in localized corrosion of AA508310.1016/j.electacta.2006.12.072 ↗
24. Role of second phase particles in pitting corrosion of 3003 Al alloy in NaCI solution10.1002/maco.200905308 ↗
25. Surface morphological changes of aluminium alloys in alkaline solution: Effect of second phase material10.1016/S0010-938X(98)00188-7 ↗
26. Pitting corrosion of aluminum10.1016/S0010-938X(99)00012-8 ↗
27. Electropolishing of high-purity aluminium in perchloric acid and ethanol solutions10.1016/j.corsci.2009.01.030 ↗
28. Deguchi · Development of electropolishing method of titanium materials(4th report), Proc. JSPE Semest. Meet. 2005A · 2005 · 539
29. Electropolishing of aluminium: Processing and assessment of visual appearance10.1002/sia.1477 ↗
30. Thermal energy storage with solar power generation