Microstructure and Microhardness Evolution in Pure Molybdenum Processed by High-Pressure Torsion
Authors: Wang, X., Li, P., Huang, Y., Gao, N. and Langdon, T.G.
Journal: Advanced Engineering Materials
Volume: 22
Issue: 4
eISSN: 1527-2648
ISSN: 1438-1656
DOI: 10.1002/adem.201901022
Abstract:Molybdenum, a refractory metal with a body-centered cubic lattice, is processed by high-pressure torsion (HPT) at room temperature under an applied pressure of 6.0 GPa and torsional straining from one-half to ten turns. The microstructures are characterized by electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM), and measurements are taken of the Vickers microhardness. The results show a gradual evolution of homogeneity in grain size and microhardness with increasing numbers of HPT turns with an average grain size of ≈690 nm at the sample edge after five turns and a saturation microhardness of ≈660 Hv. The grain size after ten turns shows a slight decrease at the center, and the microhardness is slightly lower than after five turns due to the occurrence of limited dynamic recovery.
https://eprints.bournemouth.ac.uk/33021/
Source: Scopus
Microstructure and Microhardness Evolution in Pure Molybdenum Processed by High-Pressure Torsion
Authors: Wang, X., Li, P., Huang, Y., Gao, N. and Langdon, T.G.
Journal: ADVANCED ENGINEERING MATERIALS
Volume: 22
Issue: 4
eISSN: 1527-2648
ISSN: 1438-1656
DOI: 10.1002/adem.201901022
https://eprints.bournemouth.ac.uk/33021/
Source: Web of Science (Lite)
Microstructure and microhardness evolution in pure molybdenum processed by high-pressure torsion
Authors: Wang, X., Li, P., Huang, Y., Gao, N. and Langdon, T.G.
Journal: Advanced Engineering Materials
Volume: 22
Issue: 4
Pages: 1901022(1)-1901022(7)
Publisher: Wiley-Blackwell
ISSN: 1438-1656
DOI: 10.1002/adem.201901022
Abstract:Molybdenum, a refractory metal with a body-centred cubic lattice, was processed by high-pressure torsion (HPT) at room temperature under an applied pressure of 6.0 GPa and torsional straining from 1/2 to 10 turns. The microstructures were characterized by electron back-scatter diffraction (EBSD) and transmission electron microscopy (TEM) and measurements were taken of the Vickers microhardness. The results show a gradual evolution of homogeneity in grain size and microhardness with increasing numbers of HPT turns with an average grain size of ~690 nm at the sample edge after 5 turns and a saturation microhardness of ~660 Hv. The grain size after 10 turns showed a slight decrease at the centre and the microhardness was slightly lower than after 5 turns due to the occurrence of limited dynamic recovery.
https://eprints.bournemouth.ac.uk/33021/
Source: Manual
Preferred by: Yi Huang
Microstructure and microhardness evolution in pure molybdenum processed by high-pressure torsion
Authors: Wang, X., Li, P., Huang, Y., Gao, N. and Langdon, T.G.
Journal: Advanced Engineering Materials
Volume: 22
Issue: 4
ISSN: 1438-1656
Abstract:Molybdenum, a refractory metal with a body-centred cubic lattice, was processed by high-pressure torsion (HPT) at room temperature under an applied pressure of 6.0 GPa and torsional straining from 1/2 to 10 turns. The microstructures were characterized by electron back-scatter diffraction (EBSD) and transmission electron microscopy (TEM) and measurements were taken of the Vickers microhardness. The results show a gradual evolution of homogeneity in grain size and microhardness with increasing numbers of HPT turns with an average grain size of ~690 nm at the sample edge after 5 turns and a saturation microhardness of ~660 Hv. The grain size after 10 turns showed a slight decrease at the centre and the microhardness was slightly lower than after 5 turns due to the occurrence of limited dynamic recovery.
https://eprints.bournemouth.ac.uk/33021/
Source: BURO EPrints