DataVXAdvanced Engineering MaterialsPaper
journal article·2020-10

Microstructural Evolution and Mechanical Properties of Ultrafine‐Grained Ti Fabricated by Cryorolling and Subsequent Annealing

Hailiang Yu, Lin Wang, Ming Yan, Hao Gu, Xing Zhao, Charlie Kong, Yu Wang, Alexander Pesin, Alexander P. Zhilyaev, Terence G. Langdon

Advanced Engineering Materials· Volume 22· Issue 10
Publisher page
Source abstract

Abstract

Ultrafine‐grained (UFG) commercial purity titanium (CP Ti) has a significant potential for use in medical implants and aerospace structural parts. Herein, UFG CP Ti sheets are processed by cryorolling and room‐temperature rolling (RTR), respectively, followed by annealing for 1 h at temperatures from 250 to 350 °C. The grain size is reduced from ≈75 μm to ≈85 and ≈220 nm after cryorolling and RTR, respectively. The results show that the curves of tensile stress versus engineering failure strain for samples subjected to cryorolling and subsequent annealing are above those for samples subjected to RTR and subsequent annealing. In addition, the curves of ultimate tensile stress × fracture elongation versus grain size after cryorolling and annealing are above those for RTR and annealing. It is demonstrated that a combination of cryorolling and annealing leads to improved toughness compared with the processing by RTR and annealing.
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Research context

BiomaterialsMaterials processing

OpenAlex topics: Microstructure and mechanical properties · Aluminum Alloys Composites Properties · Microstructure and Mechanical Properties of Steels

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Light Alloy Research Institute Central South University Changsha 410083 China

State Key Laboratory of High Performance Complex Manufacturing Central South University Changsha 410083 China

College of Mechanical and Electrical Engineering Central South University Changsha 410083 China

Department of Materials Science and Engineering South University of Science and Technology of China Shenzhen 518055 China

Electron Microscope Unit University of New South Wales Sydney NSW 2052 Australia

Laboratory of Mechanics of Gradient Nanomaterials Nosov Magnitogorsk State Technical University Magnitogorsk 455000 Russia

Materials Research Group Department of Mechanical Engineering University of Southampton Southampton SO17 1BJ UK

Funding

National Outstanding Youth Science Fund Project of National Natural Science Foundation of China · Innovation-Driven Project of Central South University

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