期刊
CORROSION SCIENCE
卷 53, 期 11, 页码 3678-3687出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.07.011
关键词
Ceramic; Modelling studies; SEM; XPS; Acid corrosion; Pitting corrosion
资金
- ECU-Industry Collaboration Scheme
- Innovation and Technology Fund (ITF) of Hong Kong [9440052 (ITS/082/06)]
- Australian Postgraduate Award
- Australian Microscopy & Microanalysis Facility (AMMRF) [TAP 9029]
- Australian Synchrotron (AS)
Nanocomposite TiSiN coatings were deposited on tool steels. Detailed mechanisms that govern the corrosion of these coated steels were revealed, following immersion tests in a 70% nitric acid solution. Pitting originated preferentially from coating defect sites and expanded with increasing immersion time. Both Young's modulus and hardness measured by nanoindentation decreased as the corrosion damage intensified. A thin oxide layer formed from the thermal annealing of the as-deposited samples at 900 degrees C was found to be effective against corrosive attack. In addition, compressive residual stress was noted to suppress the propagation of corrosion-induced cracks. The role of residual stress in controlling the corrosion resistance of these ceramic-coated steels is clarified by finite element analysis. (C) 2011 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据