Microstructures and mechanical properties of Fe-14Cr-3W-Ti-Y 2O3 steel with 1 wt.% Cu addition fabricated by a new method

Feng Liu; Yong Liu; Yuren Wen; Yuhai Dou; Dapeng Zhao; C. T. Liu

doi:10.1016/j.jnucmat.2011.05.015

Microstructures and mechanical properties of Fe-14Cr-3W-Ti-Y 2O3 steel with 1 wt.% Cu addition fabricated by a new method

Feng Liu, Yong Liu, Yuren Wen, Yuhai Dou, Dapeng Zhao, C. T. Liu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

6 Citations (Scopus)

Abstract

Effect of 1 wt.% copper addition on microstructures and mechanical properties of Fe-14Cr-3W-0.4Ti-0.4Y₂O₃ (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 μm) and nanometer grains was formed. Through aging treatment, -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. © 2011 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	422-425
Journal	Journal of Nuclear Materials
Volume	414
Issue number	3
DOIs	https://doi.org/10.1016/j.jnucmat.2011.05.015
Publication status	Published - 31 Jul 2011
Externally published	Yes

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title = "Microstructures and mechanical properties of Fe-14Cr-3W-Ti-Y 2O3 steel with 1 wt.% Cu addition fabricated by a new method",

abstract = "Effect of 1 wt.% copper addition on microstructures and mechanical properties of Fe-14Cr-3W-0.4Ti-0.4Y2O3 (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 μm) and nanometer grains was formed. Through aging treatment, -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. {\textcopyright} 2011 Elsevier B.V. All rights reserved.",

author = "Feng Liu and Yong Liu and Yuren Wen and Yuhai Dou and Dapeng Zhao and Liu, {C. T.}",

year = "2011",

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day = "31",

doi = "10.1016/j.jnucmat.2011.05.015",

language = "English",

volume = "414",

pages = "422--425",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Microstructures and mechanical properties of Fe-14Cr-3W-Ti-Y 2O3 steel with 1 wt.% Cu addition fabricated by a new method

AU - Liu, Feng

AU - Liu, Yong

AU - Wen, Yuren

AU - Dou, Yuhai

AU - Zhao, Dapeng

AU - Liu, C. T.

PY - 2011/7/31

Y1 - 2011/7/31

N2 - Effect of 1 wt.% copper addition on microstructures and mechanical properties of Fe-14Cr-3W-0.4Ti-0.4Y2O3 (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 μm) and nanometer grains was formed. Through aging treatment, -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. © 2011 Elsevier B.V. All rights reserved.

AB - Effect of 1 wt.% copper addition on microstructures and mechanical properties of Fe-14Cr-3W-0.4Ti-0.4Y2O3 (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 μm) and nanometer grains was formed. Through aging treatment, -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. © 2011 Elsevier B.V. All rights reserved.

UR - http://www.scopus.com/inward/record.url?scp=79959946408&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-79959946408&origin=recordpage

U2 - 10.1016/j.jnucmat.2011.05.015

DO - 10.1016/j.jnucmat.2011.05.015

M3 - RGC 21 - Publication in refereed journal

SN - 0022-3115

VL - 414

SP - 422

EP - 425

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 3

ER -

Microstructures and mechanical properties of Fe-14Cr-3W-Ti-Y 2O3 steel with 1 wt.% Cu addition fabricated by a new method

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