Detailed Information
Cited 0 time in 
Cited 0 time in 
Cited 0 time in
Metadata Downloads
Enhanced corrosion resistance of ultrafine-grained AZ61 alloy containing very fine particles of Mg17Al12 phase
- Authors
- Kim, H. S.; Kim, W. J.
- Issue Date
- Oct-2013
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Magnesium; Weight loss; Polarization; TEM; Passive films
- Citation
- CORROSION SCIENCE, v.75, pp.228 - 238
- Journal Title
- CORROSION SCIENCE
- Volume
- 75
- Start Page
- 228
- End Page
- 238
- ISSN
- 0010-938X
- Abstract
- Ultrafine-grained (1.1-1.5 mu m) AZ61 alloys containing nanoscaled beta-Mg17Al12 phase particles (70-140 nm) were prepared using high-ratio differential speed rolling (HRDSR) and their corrosion behaviours were studied in a 0.1 M NaCl solution. The grain size reduction by HRDSR improved the corrosion resistance by enhancing passivity of the surface film. Post-annealing further increased the corrosion resistance by decreasing dislocation density in matrix. When significant grain growth took place, however, the corrosion resistance was decreased because of the pronounced negative effect of the increase in grain size. Refinement of beta phase to nanoscale size decreased the susceptibility to microgalvanic corrosion. (c) 2013 Elsevier Ltd. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Graduate School > Materials Science and Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
Related Researcher
- Kim, Woo Jin
- Graduate School (Department of Materials Science and Engineering)