Ravi Kumar, B and Sharma, S and Kashyap, B P and Prabhu, N S (2015) Ultrafine grained microstructure tailoring in austenitic stainless steel for enhanced plasticity. Materials & Design, 68 (IF-3.171). pp. 63-71.
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Abstract
Using repeated or cyclic annealing process a recrystallised ultrafine grained microstructure possessing high strength and a reasonable ductility was obtained from a heavily cold rolled Austenitic Stainless Steel. Johnson Mehl Avrami and Kolmogorov model for predicting recrystallisation process was used to optimize the process parameters for the formation of ultra-fine grained recrystallised microstructure. The microstructure evolving during thermal cycling was analyzed by electron microscopy. The tensile properties of various ultrafine grained microstructures were determined. Electron microscopy studies on tensile deformed specimens showed that there is a narrow dispersion in grain size distribution of ultrafine grained microstructure which promotes shear banding or strain localization causing impairment of the ductility or poor plastic strain hardenability. (C) 2014 Elsevier Ltd. All rights reserved.
| Item Type: | Article |
|---|---|
| Official URL/DOI: | http://www.sciencedirect.com/science/article/pii/S... |
| Uncontrolled Keywords: | Austenitic stainless steel; Ultrafine grain microstructure; Tensile properties; Electron backscattered diffraction |
| Divisions: | Material Science and Technology |
| ID Code: | 7180 |
| Deposited By: | Dr. A K Sahu |
| Deposited On: | 18 Mar 2015 10:23 |
| Last Modified: | 18 Mar 2015 10:32 |
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