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High-temperature Mechanical Properties Measurement and Life Assessment of Boiler Equipment by Instrumented Indentation Technique  

Ro, Dong-Seong (Frontics)
Hong, Jeong-Wha (Frontics)
Kim, Kwang-Ho (Frontics)
Lee, Jung-Jun (School of Materials Science and Engineering, Seoul National University)
Publication Information
Journal of the Korean Society of Safety / v.24, no.3, 2009 , pp. 1-6 More about this Journal
Abstract
Recently power plants and oil refineries are focusing on capacity enlargement for better efficiency through higher temperature and higher pressure. Thickness of boiler tubes becomes lessened due to oxidation and erasion caused by high temperature bums gas flowing over tubes outside. Accordingly, mechanical stress of tubes is increasing and that is a critical factor to make a crack and fracture. To prevent those sorts of accidents, aging assessment for proper periodic repair and replacement should be conducted reliably and reasonably. We performed IIT test on Cr-Mo steel, one of the most heat-resistant materials for facilities in power plants, and we report the test result and the considerable effectiveness of IIT test.
Keywords
instrumented indentation technique; IIT(instrumented indentation technique); degradation; Cr-Mo steel;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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