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Evaluation of the Hot Workability of Commercially Pure Ti Using Hot Torsion Tests

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Optimum processing conditions were obtained by evaluating the hot working behavior of commercially pure Ti using hot torsion tests. Hot torsion tests were conducted at temperatures ranging from 800 °C–1000 °C and strain rates ranging from 0.1–10 s−1. The flow curves show that the peak stress increases as the temperature decreases and the strain rate increases. The optimum processing conditions were derived by comparing the processing and activation energy maps. The microstructure was characterized based on various regions of the processing map. The activation energy for plastic deformation was obtained using the constitutive equation. The activation energy differs depending on the constituent phases.
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Keywords: CP Ti; Constitutive Equation; Hot Torsion Test; Processing Map

Document Type: Research Article

Affiliations: 1: Department of Materials Science and Engineering, Inha University, Incheon, 22212, Republic of Korea 2: Korea Institute of Industrial Technology (KITECH), Incheon, 21999, Republic of Korea 3: Korea Institute of Industrial Technology (KITECH), Jeju, 63294, Republic of Korea

Publication date: March 1, 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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