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Evaluation of the Hot Workability of Commercially Pure Ti Using Hot Torsion Tests
- Kim, Myoung-Hun;
- Lee, Ji-Woon;
- Kim, Sang-Wook;
- Son, Hyeon-Woo;
- Choi, Ho-Joon;
- ... Hyun, Soong-Keun;
- 외 4명
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0초록
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 degrees C-1000 degrees 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.
키워드
CP Ti; Hot Torsion Test; Processing Map; Constitutive Equation; DYNAMIC RECRYSTALLIZATION BEHAVIOR; DEFORMATION CHARACTERISTICS; TITANIUM ALLOYS; MECHANISMS; MAP
- 제목
- Evaluation of the Hot Workability of Commercially Pure Ti Using Hot Torsion Tests
- 저자
- Kim, Myoung-Hun; Lee, Ji-Woon; Kim, Sang-Wook; Son, Hyeon-Woo; Choi, Ho-Joon; Shin, Young-Chul; Lim, Seong-Sik; Kim, Jae-Bum; Jung, Taek-Keun; Hyun, Soong-Keun
- 발행일
- 2019-03
- 유형
- Article
- 권
- 19
- 호
- 3
- 페이지
- 1772 ~ 1776