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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18171
Title: Microstructure and creep properties of siliconand/or germanium-bearing near-α titanium alloys
Authors: Kitashima T.
Suresh, K. S.
Hara T.
Yamabe-Mitarai Y.
Toda Y.
Ionescu M.
Mishra B.
Kozeschnik E.
Sommitsch C.
Chandra T.
Mishra B.
Published in: Proceedings of Materials Science Forum
Abstract: The effects of Si and/or Ge addition on the microstructure and creep properties at 650°C and 137 MPa were investigated in near-α Ti–Al–Sn–Zr–Mo alloys. Si and/or Ge addition decreased the minimum creep strain rate owing to the solid solution of Si and Ge in the matrix and the precipitation of silicide, germanide, and their solid solutions. The decrease in the minimum creep strain rate in the alloy with 1 wt% Ge without Si was the most significant because of the formation of very fine germanide precipitates. In addition, a marked shift in the lattice parameters of the α and β phases was detected for the alloy with 4 wt% Ge. The Moiré fringe patterns at the α/β interfaces in the alloys were investigated using high-resolution transmission electron micrographs to discuss the alloying effect on the structure of the interfaces. © 2017 Trans Tech Publications, Switzerland.
Citation: Proceedings of Materials Science Forum, (2017), 2324- 2329
URI: https://doi.org/10.4028/www.scientific.net/MSF.879.2324
http://repository.iitr.ac.in/handle/123456789/18171
Issue Date: 2017
Publisher: Trans Tech Publications Ltd
Keywords: Creep
Germanium
Interface
Silicon
Titanium alloy
ISBN: 9.78E+12
ISSN: 2555476
Author Scopus IDs: 12807889100
54882593400
57198885136
7006561531
7102985269
Author Affiliations: Kitashima, T., National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Suresh, K.S., National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Hara, T., National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Yamabe-Mitarai, Y., National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Toda, Y., National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
Appears in Collections:Conference Publications [MT]

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