Published March 15, 2009
| Version v1
Journal article
Observations on the ductile-to-brittle transition in ultrafine-grained tungsten of commercial purity
- 1. Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094 (China)
- 2. Ufa State Aviation Technical University, 12 K. Marx, Ufa 450000 (Russian Federation)
Description
Rods of commercial-purity tungsten were subjected to severe plastic deformation by means of equal-channel angular pressing (ECAP). An ultrafine-grained (UFG) equiaxed microstructure with an average grain size of about 0.9 μm was developed. Microhardness measurements in a wide range of temperatures suggest a ductile-to-brittle transition at temperatures below 350 deg. C in the UFG samples after ECAP. In contrast, the results on the as-received material suggest a ductile-to-brittle transition temperature above 483 deg. C
Availability note (English)
Available from http://dx.doi.org/10.1016/j.msea.2008.07.074Additional details
Identifiers
- DOI
- 10.1016/j.msea.2008.07.074;
- PII
- S0921-5093(08)01300-2;
Publishing Information
- Journal Title
- Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
- Journal Volume
- 503
- Journal Issue
- 1-2
- Journal Page Range
- p. 37-40
- ISSN
- 0921-5093
- CODEN
- MSAPE3
Conference
- Title
- International symposium on bulk nanostructured materials: From fundamentals to innovation
- Acronym
- BNM-2007
- Dates
- 14-19 Aug 2007
- Place
- Ufa (Russian Federation)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40068773
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DUCTILE-BRITTLE TRANSITIONS; GRAIN SIZE; MICROHARDNESS; PLASTICITY; TEMPERATURE RANGE 0400-1000 K; TUNGSTEN
- Descriptors DEC
- ELEMENTS; HARDNESS; MECHANICAL PROPERTIES; METALS; MICROSTRUCTURE; REFRACTORY METALS; SIZE; TEMPERATURE RANGE; TRANSITION ELEMENTS
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.