Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18269
Title: Microstructures and mechanical properties of Fe-14Cr-3W-Ti-Y2O3 steel with 1 wt.% Cu addition fabricated by a new method
Authors: Liu, F
Liu, Y
Wen, Y
Dou, Y
Zhao, D
Liu, CT
Issue Date: 2011
Publisher: North-Holland
Source: Journal of nuclear materials, 2011, v. 414, no. 3, p. 422-425 How to cite?
Journal: Journal of nuclear materials 
Abstract: Effect of 1 wt.% copper addition on microstructures and mechanical properties of Fe-14Cr-3W-0.4Ti-0.4Y(2)O(3) (wt.%) alloy has been investigated. Mechanically alloyed powders and pre-alloyed powders were blended and consolidated by hot extrusion. A bimodal grain structure with large grains (10-20 mu m) and nanometer grains was formed. Through aging treatment, epsilon-Cu phase with face cubic centered lattice structure precipitated from the supersaturated solid solution. After aging for 6 h, the microhardness reached a peak value of HV326, which was attributed to precipitation of copper-rich phase. The alloy exhibited a high strength due to the strengthening of both copper-rich precipitates and Y-Ti-O nanoclusters, and an excellent ductility due to its bimodal structure.
URI: http://hdl.handle.net/10397/18269
ISSN: 0022-3115
EISSN: 1873-4820
DOI: 10.1016/j.jnucmat.2011.05.015
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