Effect of Thermomechanical Treatment on the Grain Boundary Character Distribution in a 9Cr-1Mo Ferritic Steel
DSpace at IIT Bombay
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Title |
Effect of Thermomechanical Treatment on the Grain Boundary Character Distribution in a 9Cr-1Mo Ferritic Steel
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Creator |
KARTHIKEYAN, T
PAUL, VT MISHRA, SK SAROJA, S VIJAYALAKSHMI, M SAMAJDAR, I |
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Description |
Grain boundary embrittlement due to segregation of impurities to high-energy grain boundaries causing an increase of ductile-brittle transition temperature poses a major obstacle in the development of ferritic steel for nuclear reactor core applications. Various types of thermomechanical treatments were carried out on the modified 9Cr-1Mo steel, and the nature of grain boundaries was evaluated using electron backscattered diffraction (EBSD); the "effective grain boundary energy" (EGBE) was also computed. The minimum EGBE was obtained in a specimen that was deformed in the austenite phase field at 1323 K and further normalized and tempered. This condition also gave a high fraction of coincident site lattice boundaries compared to the normalized and tempered modified 9Cr-1Mo steel.
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Publisher |
SPRINGER
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Date |
2011-08-29T12:20:50Z
2011-12-26T12:58:35Z 2011-12-27T05:48:47Z 2011-08-29T12:20:50Z 2011-12-26T12:58:35Z 2011-12-27T05:48:47Z 2009 |
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Type |
Article
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Identifier |
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 40A(9), 2030-2032
1073-5623 http://dx.doi.org/10.1007/s11661-009-9932-z http://dspace.library.iitb.ac.in/xmlui/handle/10054/12080 http://hdl.handle.net/10054/12080 |
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Language |
en
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