Influence of high-pressure torsion on the microstructure and the hardness of a Ti-Rich high-entropy alloy
Authors: Heczel, A., Lilensten, L., Bourgon, J., Perrière, L., Couzinié, J.P., Guillot, I., Dirras, G., Huang, Y., Langdon, T.G. and Gubicza, J.
Journal: Materials Science Forum
Volume: 879
Pages: 732-737
eISSN: 1662-9752
ISBN: 9783035711295
ISSN: 0255-5476
DOI: 10.4028/www.scientific.net/MSF.879.732
Abstract:High-Pressure Torsion (HPT) is one of the most effective severe plastic deformation techniques in grain refinement. The goal of this study was to investigate the influence of HPT on the microstructure and hardness of a Ti-rich High-Entropy Alloy (HEA). The evolution of the grain size due to 1 turn of HPT was studied by transmission electron microscopy. Besides the refinement of the microstructure, a phase transition also occurred during HPT, as revealed by X-ray diffraction. The initial bcc structure transformed into a martensitic phase throughout the material. The features of this phase transformation were studied on a sample compressed to low strain values. The hardness as a function of the distance from the center in the HPT-processed disk was measured and correlated to the microstructure.
Source: Scopus
Influence of high-pressure torsion on the microstructure and the hardness of a Ti-Rich high-entropy alloy
Authors: Heczel, A., Lilensten, L., Bourgon, J., Perrière, L., Couzinié, J.P., Guillot, I., Dirras, G., Huang, Y., Langdon, T.G. and Gubicza, J.
Conference: THERMEC 2016: 9th International Conference on Processing & Manufacturing of Advanced Materials
Dates: 29 May-3 June 2016
Journal: Materials Science Forum
Volume: 879
Pages: 732-737
eISSN: 1662-9752
ISBN: 9783035711295
ISSN: 0255-5476
DOI: 10.4028/www.scientific.net/MSF.879.732
Abstract:© 2017 Trans Tech Publications, Switzerland. High-Pressure Torsion (HPT) is one of the most effective severe plastic deformation techniques in grain refinement. The goal of this study was to investigate the influence of HPT on the microstructure and hardness of a Ti-rich High-Entropy Alloy (HEA). The evolution of the grain size due to 1 turn of HPT was studied by transmission electron microscopy. Besides the refinement of the microstructure, a phase transition also occurred during HPT, as revealed by X-ray diffraction. The initial bcc structure transformed into a martensitic phase throughout the material. The features of this phase transformation were studied on a sample compressed to low strain values. The hardness as a function of the distance from the center in the HPT-processed disk was measured and correlated to the microstructure.
Source: Manual
Preferred by: Yi Huang