Microstructures and mechanical properties of pure tantalum processed by high-pressure torsion
Authors: Huang, Y., Maury, N., Zhang, N.X. and Langdon, T.G.
Journal: IOP Conference Series: Materials Science and Engineering
Volume: 63
Issue: 1
eISSN: 1757-899X
ISSN: 1757-8981
DOI: 10.1088/1757-899X/63/1/012100
Abstract:A body-centred cubic (BCC) structure metal, tantalum, was processed by high- pressure torsion (HPT) at room temperature with different numbers of rotations. The microstructural evolution was studied by electron backscatter diffraction (EBSD). The grain sizes were significantly refined at the disk edge area in the early stages of deformation (N 0.5) but tended to attain saturation after the numbers of rotations was increased to N 5. As the deformation continued, some coarse grains appeared in the disk edge areas and it appeared that there was structural recovery at the expense of grain boundary migration in the tantalum during HPT processing. Microhardness measurements showed the hardness gradually evolved towards a more homogenized level across the disk surfaces as the numbers of rotations increased. The hardness level after N 10 turns was slightly lower than after N 5 turns, thereby indicating the occurrence of a recovery process after 5 turns. © Published under licence by IOP Publishing Ltd.
Source: Scopus
Microstructures and mechanical properties of pure tantalum processed by high-pressure torsion
Authors: Huang, Y., Maury, N., Zhang, N.X. and Langdon, T.G.
Journal: 6TH INTERNATIONAL CONFERENCE ON NANOMATERIALS BY SEVERE PLASTIC DEFORMATION (NANOSPD6)
Volume: 63
ISSN: 1757-8981
DOI: 10.1088/1757-899X/63/1/012100
Source: Web of Science (Lite)
Microstructures and mechanical properties of pure tantalum processed by high-pressure torsion
Authors: Huang, Y., Maury, N., Zhang, N.X. and Langdon, T.G.
Conference: NanoSPD6: The 6th International Conference on Nanomaterials by Severe Plastic Deformation
Dates: 30 June-4 July 2014
Journal: IOP Conference Series: Materials Science and Engineering
Volume: 63
Issue: 1
Pages: 012100(1)-012100(8)
eISSN: 1757-899X
ISSN: 1757-8981
DOI: 10.1088/1757-899X/63/1/012100
Abstract:A body-centred cubic (BCC) structure metal, tantalum, was processed by high- pressure torsion (HPT) at room temperature with different numbers of rotations. The microstructural evolution was studied by electron backscatter diffraction (EBSD). The grain sizes were significantly refined at the disk edge area in the early stages of deformation (N 0.5) but tended to attain saturation after the numbers of rotations was increased to N 5. As the deformation continued, some coarse grains appeared in the disk edge areas and it appeared that there was structural recovery at the expense of grain boundary migration in the tantalum during HPT processing. Microhardness measurements showed the hardness gradually evolved towards a more homogenized level across the disk surfaces as the numbers of rotations increased. The hardness level after N 10 turns was slightly lower than after N 5 turns, thereby indicating the occurrence of a recovery process after 5 turns. © Published under licence by IOP Publishing Ltd.
Source: Manual
Preferred by: Yi Huang