Specifications

Issue date: 2013
Publication year: 2013
Pages: 613-618
Language: English
ISSN: 02555476
CODEN: MSFOEP
ISBN-13: 9783037856086
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: 96128
Publisher: Trans Tech Publications Ltd, Kreuzstrasse 10, Zurich-Durnten, CH-8635, Switzerland
Abstract: The as-cast Ni-W alloys with 15wt%W, 25wt%W and 30wt%W were annealed in
hydrogen at 1100°C. The effect of the annealing time on the microstructure of Ni-W alloys was
studied, and the phase constituents and microstructure of annealed Ni-W alloys were
characterized by the X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results
showed that no any phase changed for Ni-15%W, Ni-25%W and Ni-30%W alloys annealed for 60
min, 90 min and 150 min, which were still consisted of single-phase Ni(W) solid solution.
However, microstructure had a significant change after annealing. With increase of annealing
time, the microstructure of Ni-15%W alloy became more uniform after annealing for 90 min, and
the average grain size was 95μm, whereas the grain size of Ni-15%W alloy increased significantly
after annealing for 150 min. For Ni-25%W and Ni-30%W, there was no obvious change on the
grain size with increase of annealing time, and the amount of oxides at grain boundaries
gradually reduced. After annealing for 150 min, the impurities at grain boundaries almost
disappeared. Subsequently, the annealing at 1100°C for 150 min was beneficial for the desired
microstructure of Ni-25%W and Ni-30%W alloys. © (2013) Trans Tech Publications, Switzerland.
Number of references: 13
Main heading: Nickel
Controlled terms: Annealing - Grain boundaries - Grain size and shape -
Microstructure - Scanning electron microscopy - Tungsten alloys - X ray diffraction
Uncontrolled terms: Annealing time - As-cast - Average grain size - Grain size -
Ni-W alloy - Phase constituent
Classification code: 537.1 Heat Treatment Processes - 543.5 Tungsten and Alloys - 548.1
Nickel - 741.1 Light/Optics - 933 Solid State Physics - 951 Materials Science
DOI: 10.4028/www.scientific.net/MSF.747-748.613
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
© 2013 Elsevier Inc. All rights reserved.
20130412 新增 13 条
1.
Accession number: 20131416174652
Title: Hole injection layer effect on red OLED performance
Authors: An, Tao1 ; Nan, Jing-Biao1 ; Xia, Yan-Feng1 ; Gao, Yong1/安涛;南晶彪;夏艳峰;高勇