Specifications

and Biology
DOI: 10.1109/TIP.2013.2246518
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
4.
Accession number: 20131516189235
Title: W-Ti alloy prepared by hydrogen reduction of nanometer WO3-TiH2 powders
Authors: Xiao, Peng1 ; Qu, Yingchun1 ; Yang, Xiaohong1 ; Liang, Shuhua1/肖鹏;;杨晓红;梁淑华
Author affiliation: 1 School of Materials Science and Engineering, Xi'an University of
Technology, Xi'an 710048, China
Corresponding author: Xiao, P. ([e-mail])
Source title: Materials Science Forum
Abbreviated source title: Mater. Sci. Forum
Volume: 749
Monograph title: Materials Performance, Modeling and Simulation
Issue date: 2013
Publication year: 2013
Pages: 316-321
Language: English
ISSN: 02555476
CODEN: MSFOEP
ISBN-13: 9783037856093
Document type: Conference article (CA)
Conference name: Chinese Materials Congress 2012, CMC 2012
Conference date: July 13, 2012 - July 18, 2012
Conference location: Taiyuan, China
Conference code: 96431
Sponsor: 667
Publisher: Trans Tech Publications Ltd, Kreuzstrasse 10, Zurich-Durnten, CH-8635, Switzerland
Abstract: In this study, TiH2 and WO3 powders were co-milled together, then the ultrafine
powderswere reduced at H2 atmosphere, and W-Ti alloys were prepared by the solid phase
sintering. The mainpurpose of WO3 powder instead of the W powder was to use the transition of
the lattice type of WO3,and the lattice distortion and defects in the lattice of W would promote
Ti atom diffusing into W. Itwas easy to form a W-rich solid solution and reduce the effect of
Ti-rich phase. The results showedthat when the milling time of WO3-TiH2 was 24h, the particle
size of mixed powder reachednanoscale, and WO3 particles were coated on the surface of TiH2
particles. The particle size changedunobviously with the increase of the milling time. The XRD
analysis showed that the milled WO3 andTiH2 were not decomposed in the milling process.
When WO3-TiH2 milled powders weredecomposed in the H2 atmosphere at 800°C, WO3
reduction was not sufficient, and the middle phaseof WO2 was existed. When the reduction
temperature was 850°C for 2h, WO3 was reduced to W, andthe phase of WO2 was disappeared.
A small amount of TiO2 was formed by the decomposed Ti anddecomposed O from WO3. W-10Ti
alloys were prepared by the solid-phase sintering with the reducedpowders at 850°C. It was
found that the amount of W-rich solid solution in W-10Ti alloy wasdecreased, because the