Published September 2012
| Version v1
Journal article
Simultaneous gettering of oxygen and chlorine and homogenization of the β phase by rare earth hydride additions to a powder metallurgy Ti–2.25Mo–1.5Fe alloy
- 1. The University of Queensland, School of Mechanical and Mining Engineering, ARC Centre of Excellence for Design in Light Metals, Centre for Advanced Materials Processing and Manufacturing (AMPAM), Brisbane, QLD 4072 (Australia)
- 2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083 (China)
- 3. University of New South Wales, Electron Microscopy Unit, Sydney, NSW 2052 (Australia)
Description
A detailed transmission electron microscopy analysis has revealed that small additions of yttrium hydride to a powder metallurgy Ti–2.25Mo–1.5Fe alloy resulted in the formation of both chlorine-free yttrium oxides and essentially oxygen-free yttrium chlorides. The oxides and chlorides showed distinctly different morphologies and spatial distribution. Yttrium acted as a potent getter for both oxygen and chlorine. Additionally, the β-Ti phase was free of nanoscaled α-Ti in the presence of yttrium. These microstructural changes contribute to the substantially increased ductility (∼90%).
Availability note (English)
Available from http://dx.doi.org/10.1016/j.scriptamat.2012.06.009Additional details
Identifiers
- DOI
- 10.1016/j.scriptamat.2012.06.009;
- PII
- S1359-6462(12)00393-4;
Publishing Information
- Journal Title
- Scripta Materialia
- Journal Volume
- 67
- Journal Issue
- 5
- Journal Page Range
- p. 491-494
- ISSN
- 1359-6462
- CODEN
- SCMAF7
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45025130
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CHLORINE; DUCTILITY; GETTERING; IRON ALLOYS; MICROSTRUCTURE; MOLYBDENUM ALLOYS; MORPHOLOGY; NANOSTRUCTURES; OXYGEN; POWDER METALLURGY; SPATIAL DISTRIBUTION; TITANIUM BASE ALLOYS; TRANSMISSION ELECTRON MICROSCOPY; YTTRIUM CHLORIDES; YTTRIUM HYDRIDES; YTTRIUM OXIDES
- Descriptors DEC
- ALLOYS; CHALCOGENIDES; CHLORIDES; CHLORINE COMPOUNDS; DISTRIBUTION; ELECTRON MICROSCOPY; ELEMENTS; HALIDES; HALOGEN COMPOUNDS; HALOGENS; HYDRIDES; HYDROGEN COMPOUNDS; MECHANICAL PROPERTIES; METALLURGY; MICROSCOPY; NONMETALS; OXIDES; OXYGEN COMPOUNDS; TENSILE PROPERTIES; TITANIUM ALLOYS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; YTTRIUM HALIDES
Optional Information
- Copyright
- Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.