Evaluation of Temper Embrittlement of 30Cr2MoV Rotor Steels Using Electrochemical Impedance Spectroscopy Technique
Joint Authors
Shenghan, Zhang
Yaling, Lv
Yu, Tan
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-03
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Temper embrittlement tends to occur in the turbine rotor after long running, which refers to the decrease in notch toughness of alloy steels in a certain temperature range (e.g., 400°C to 600°C).
The severity of temper embrittlement must be monitored timely to avoid further damagement, and the fracture appearance transition temperature (FATT50) is commonly used as an indicator parameter to characterize the temper embrittlement.
Compared with conventional destructive methods (e.g., small punch test), nondestructive approaches have drawn significant attention in predicting the material degradation in turbine rotor steels without impairing the integrity of the components.
In this paper, laboratory experiments were carried out based on a nondestructive method, electrochemical impedance spectroscopy (EIS), with groups of lab-charged specimens for predicting the temper embrittlement (FATT50) of turbine rotor steel.
The results show that there was a linear relationship of interfacial impedance of the specimens and their FATT50 values.
The predictive error based on the experiment study is within the range of ±15°C, indicating the predicting model is precise, effective, and reasonable.
American Psychological Association (APA)
Shenghan, Zhang& Yaling, Lv& Yu, Tan. 2015. Evaluation of Temper Embrittlement of 30Cr2MoV Rotor Steels Using Electrochemical Impedance Spectroscopy Technique. Journal of Spectroscopy،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1070364
Modern Language Association (MLA)
Shenghan, Zhang…[et al.]. Evaluation of Temper Embrittlement of 30Cr2MoV Rotor Steels Using Electrochemical Impedance Spectroscopy Technique. Journal of Spectroscopy No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1070364
American Medical Association (AMA)
Shenghan, Zhang& Yaling, Lv& Yu, Tan. Evaluation of Temper Embrittlement of 30Cr2MoV Rotor Steels Using Electrochemical Impedance Spectroscopy Technique. Journal of Spectroscopy. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1070364
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1070364