Corrosion Behavior of Magnesium Powder Fabricated by High-Energy Ball Milling and Spark Plasma Sintering
- Authors
- Kim, Ka Ram; Ahn, Jin Woo; Kim, Gyeung-Ho; Han, Jun Hyun; Cho, Kwon Koo; Roh, Jae-Seung; Kim, Woo Jin; Kim, Hye Sung
- Issue Date
- Nov-2014
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- mechanical milling; spark plasma sintering; texture; corrosion; electrochemical impedance spectroscopy
- Citation
- METALS AND MATERIALS INTERNATIONAL, v.20, no.6, pp.1095 - 1101
- Journal Title
- METALS AND MATERIALS INTERNATIONAL
- Volume
- 20
- Number
- 6
- Start Page
- 1095
- End Page
- 1101
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/16534
- DOI
- 10.1007/s12540-014-6023-5
- ISSN
- 1598-9623
- Abstract
- Microstructural changes and corrosion behavior of pure magnesium for different milling times were investigated. The samples with a finer grain size showed poor corrosion resistance because of unstable or metastable protective film formation after immersion in 0.8 wt% NaCl solution. The corrosion resistance did not improve despite the strong (0002) texture of the sample prepared by spark plasma sintering at 500 degrees C for 0.3 Ks and milling for 2 h. By studying the microstructural changes and texture development, we concluded that the deformation-dependent grain size is the dominant factor controlling the corrosion properties of mechanically milled magnesium. Increased grain boundary densities lead to an enhancement of the overall surface reactivity and, consequently, the corrosion rate.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Graduate School > Materials Science and Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/16534)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.