Corrosion- and damage-resistant nitride coatings for steel
Date
2012
Authors
Ahmed, M.
Munroe, P.
Jiang, Z.
Zhao, X.
Wajrak, M.
Guo, H.
Rickard, W.
Xie, Z.
Editors
Smialek, J.
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of the American Ceramic Society, 2012; 95(9):2997-3004
Statement of Responsibility
Mohammad Shoeb Ahmed, Paul Munroe, Zhong-Tao Jiang, Xiaoli Zhao, Magdalena Wajrak, Hua Guo, William Rickard, and Zonghan Xie
Conference Name
Abstract
Ceramic coatings of distinct microstructures, namely TiSiN and CrN, were deposited on tool steels. The corrosion resistance of the coated steels was measured. Following nanoindentation, immersion tests were conducted in 70% HNO₃ solution for 96 h. Deformed CrN, where deformation occurred through shear sliding of columnar grains, was insensitive to corrosion attack. In contrast, open cracks formed in the indented TiSiN coating, serving as pathway for reactive agents to penetrate through the coatings. Finite element analysis was applied to evaluate the damage tolerance of the coatings and its impact on the corrosion resistance of the coated steels.
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Dissertation Note
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© 2012 The American Ceramic Society