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http://hdl.handle.net/2080/1557
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| Title: | Microstructure and mechanical properties of nano-Y2O3 dispersed ferritic steel synthesized by mechanical alloying and consolidated by pulse plasma sintering |
| Authors: | Karak, S K
Majumdar, J Dutta
Lojkowski, W
Michalski, A
Ciupinski, L
Kurzydłowski, K J
Manna, I |
| Keywords: | nano-Y2O3 dispersed ferritic steel
mechanical alloying
microstructure
mechanical property
pulse plasma sintering |
| Issue Date: | 2011 |
| Publisher: | Taylor & Francis |
| Citation: | Philosophical Magazine, 2011, 1–19, iFirst |
| Abstract: | Ferritic steel with compositions 83.0Fe–13.5Cr–2.0Al–0.5Ti (alloy A), 79.0Fe–17.5Cr–2.0Al–0.5Ti (alloy B), 75.0Fe–21.5Cr–2.0Al–0.5Ti (alloy C)
and 71.0Fe–25.5Cr–2.0Al–0.5Ti (alloy D) (all in wt%) each with a 1.0wt% nano-Y2O3 dispersion were synthesized by mechanical alloying and
consolidated by pulse plasma sintering at 600, 800 and 1000C using a 75-MPa uniaxial pressure applied for 5 min and a 70-kA pulse current at
3Hz pulse frequency. X-ray diffraction, scanning and transmission electron microscopy and energy disperse spectroscopy techniques have been used to
characterize the microstructural and phase evolution of all the alloys at different stages of mechano-chemical synthesis and consolidation.
Mechanical properties in terms of hardness, compressive strength, yield strength and Young’s modulus were determined using a micro/nanoindenter
and universal testing machine. All ferritic alloys recorded very high levels of compressive strength (850–2850 MPa), yield strength
(500–15... |
| Description: | Copyright for this paper belongs to Taylor & Francis |
| URI: | http://dx.doi.org/10.1080/14786435.2011.619508
http://www.tandfonline.com
http://hdl.handle.net/2080/1557 |
| ISSN: | 1478–6435
478–6443 |
| Appears in Collections: | Journal Articles
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