期刊
NDT & E INTERNATIONAL
卷 43, 期 7, 页码 555-567出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ndteint.2010.05.012
关键词
Creep damage; Power plant steels
The assessment of creep damage in steels employed in the power generation industry is usually carried out by means of replica metallography, but the several shortcomings of this method have prompted a search for alternative or complementary non-destructive techniques, ranging from ultrasonic to electromagnetic methods, hardness measurements and nuclear techniques. A critical review of the main results obtained to date in the secondary and tertiary stages of creep is presented in this paper, and the advantages and disadvantages of each method are discussed. Ultrasonic and potential drop techniques appear to be the most promising, but further research is needed before they are fully mature for deployment in the field. (C) 2010 Elsevier Ltd. All rights reserved.
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