Thermal stability and mechanical properties of HPT-processed CP-Ti

Authors: Huang, Y., Mortier, S., Pereira, P.H.R., Bazarnik, P., Lewandowska, M. and Langdon, T.G.

Journal: IOP Conference Series: Materials Science and Engineering

Volume: 194

Issue: 1

eISSN: 1757-899X

ISSN: 1757-8981

DOI: 10.1088/1757-899X/194/1/012012

Abstract:

A grade 2 commercial pure titanium was processed by high-pressure torsion (HPT) at room temperature to 20 turns. X-ray analysis showed that an ω phase formed during HPT processing but disappeared immediately during 10 minutes post-HPT short-term annealing even at a very low temperature of 473 K. The thermal stability of HPT-processed microstructural evolution was studied by electron backscatter diffraction (EBSD). After short-term annealing at lower temperatures (473 and 673 K), the disc centre had relative higher hardness value than the edge area, and it was found that the centre retained the feature of deformed microstructure whereas the edge showed recovery / recrystallization of the microstructure. Short-term annealing at higher temperatures (873 and 973 K) led to almost uniformly distributed hardness and microstructures in the disc centre and edge areas. Grain structures and hardness measurements indicate complete recrystallization occurred at 873 K.

Source: Scopus

Thermal stability and mechanical properties of HPT-processed CP-Ti

Authors: Huang, Y., Mortier, S., Pereira, P.H.R., Bazarnik, P., Lewandowska, M. and Langdon, T.G.

Journal: 7TH INTERNATIONAL CONFERENCE ON NANOMATERIALS BY SEVERE PLASTIC DEFORMATION

Volume: 194

ISSN: 1757-8981

DOI: 10.1088/1757-899X/194/1/012012

Source: Web of Science (Lite)

Thermal stability and mechanical properties of HPT-processed CP-Ti

Authors: Huang, Y., Mortier, S., Pereira, P.H.R., Bazarnik, P., Lewandowska, M. and Langdon, T.G.

Conference: NanoSPD7: The 7th International Conference on Nanomaterials by Severe Plastic Deformation

Dates: 2-7 July 2017

Journal: IOP Conference Series: Materials Science and Engineering

Volume: 194

Issue: 1

Pages: 012012(1)-012012(7)

eISSN: 1757-899X

ISSN: 1757-8981

DOI: 10.1088/1757-899X/194/1/012012

Abstract:

© Published under licence by IOP Publishing Ltd. A grade 2 commercial pure titanium was processed by high-pressure torsion (HPT) at room temperature to 20 turns. X-ray analysis showed that an ω phase formed during HPT processing but disappeared immediately during 10 minutes post-HPT short-term annealing even at a very low temperature of 473 K. The thermal stability of HPT-processed microstructural evolution was studied by electron backscatter diffraction (EBSD). After short-term annealing at lower temperatures (473 and 673 K), the disc centre had relative higher hardness value than the edge area, and it was found that the centre retained the feature of deformed microstructure whereas the edge showed recovery / recrystallization of the microstructure. Short-term annealing at higher temperatures (873 and 973 K) led to almost uniformly distributed hardness and microstructures in the disc centre and edge areas. Grain structures and hardness measurements indicate complete recrystallization occurred at 873 K.

Source: Manual

Preferred by: Yi Huang