Rajan, Karthikeyan ; Rai, Nandani ; Vadlamani, Subramanya Sarma ; Murty, B. S. (2014) Isothermal grain growth studies on nanostructured 9Cr-1Mo and 9Cr-1W ferritic steels containing nano-sized oxide dispersoids Metallurgical and Materials Transactions A, 45 (4). pp. 1684-1688. ISSN 1073-5623
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Official URL: https://link.springer.com/article/10.1007/s11661-0...
Related URL: http://dx.doi.org/10.1007/s11661-014-2189-1
Abstract
Analysis of isothermal grain growth kinetics of nanocrystalline Fe-9Cr-1Mo and Fe-9Cr-1W-based ferritic oxide dispersion strengthened alloys is reported. Fe-9Cr-1Mo-0.25Ti-0.5Y2O3 alloy exhibited ∼900 and ∼250 pct enhancement in grain-coarsening resistance at 1073 K (800°C) in comparison with Fe-9Cr-1Mo-0.5Y2O3 alloy and Fe-9Cr-1W-0.5Y2O3 alloy, respectively. Comparison of grain growth time exponents also revealed that addition of Ti and Y2O3 to nanocrystalline Fe-9Cr alloy has significantly enhanced the grain growth resistance. This is attributed to the possible presence of Y-Ti-O-based nanoclusters (<5 nm).
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer-Verlag. |
| ID Code: | 110931 |
| Deposited On: | 06 Dec 2017 11:07 |
| Last Modified: | 06 Dec 2017 11:07 |
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