Journal article
Quasi-static Tensile and Compressive Behavior of Nanocrystalline Tantalum based on Miniature Specimen Testing-Part I: Materials Processing and Microstructure
JOM (1989), v 68(11), pp 2832-2838
01 Nov 2016
Abstract
Grain size reduction of metals into ultrafine-grained (UFG, grain size 100 nm < d < 1000 nm) and nanocrystalline (NC, d < 100 nm) regimes results in considerable increase in strength along with other changes in mechanical behavior such as vanishing strain hardening and limited ductility. Severe plastic deformation (SPD) has been among the favored technologies for the fabrication of UFG/NC metals. Primary past research efforts on SPD UFG/NC metals have been focused on easy-to-work metals, especially face-centered cubic metals such as copper, nickel, etc., and the limited efforts on body-centered cubic metals have mainly focused on high strain rate behavior where these metals are shown to deform via adiabatic shear bands. Except for the work on Fe, only a few papers can be found associated with UFG/NC refractory metals. In the first part of the present work (Part I), high-pressure torsion (HPT) is used to process UFG/NC tantalum, a typical refractory metal. The microstructure of the HPT disk as a function of radial location as well as orientation will be examined. In the subsequent part (Part II), the location-specific mechanical behavior will be presented and discussed. It is suggested that refractory metals such as Ta are ideal to employ SPD technology for microstructure refinement because of the extremely high melting point and relatively good workability.
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Details
- Title
- Quasi-static Tensile and Compressive Behavior of Nanocrystalline Tantalum based on Miniature Specimen Testing-Part I: Materials Processing and Microstructure
- Creators
- J. Ligda - University of North Carolina at CharlotteD. Scotto D'Antuono - Drexel Univ, Dept Mat Sci, Philadelphia, PA 19104 USAM. L. Taheri - Drexel UniversityB. E. Schuster - DEVCOM Army Research LaboratoryQ. Wei - University of North Carolina at CharlotteArgonne National Lab. (ANL), Argonne, IL (United States)
- Publication Details
- JOM (1989), v 68(11), pp 2832-2838
- Publisher
- Springer Nature
- Number of pages
- 7
- Grant note
- DE-SC0008274 / United States Department of Energy Basic Energy Sciences (DOE/BES); United States Department of Energy (DOE) N000141210505 / Office of Naval Research DE-AC02-06CH11357 / U.S. DOE; United States Department of Energy (DOE) W911QX-06-C-0124; W911QX-08-C-0073 / US Army Research Laboratory; United States Department of Defense; US Army Research Laboratory (ARL) U.S. Department of Energy (DOE) Office of Science; United States Department of Energy (DOE) NE0000315 / Department of Energy's Nuclear Energy University Program
- Resource Type
- Journal article
- Language
- English
- Web of Science ID
- WOS:000388816100019
- Scopus ID
- 2-s2.0-84987648086
- Other Identifier
- 991019335326204721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering
- Mineralogy
- Mining & Mineral Processing