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Effect of Microstructure Control on the Mechanical Properties of Hot Worked TiAl Alloy
열간가공된 TiAl 합금의 미세조직 제어가 기계적 특성에 미치는 영향
Jong-hun Kim, Jae-Kwon Kim, Seong-Woong Kim, Yong-Ho Park, Seung Eon Kim
김종훈, 김재권, 김성웅, 박용호, 김승언
Korean J. Met. Mater. 2020;58(7):459-465.   Published online 2020 Jul 5
DOI: https://doi.org/10.3365/KJMM.2020.58.7.459

The microstructure and mechanical properties of a newly developed, β-phase containing TiAl alloy have been studied through hot working and post heat treatment to enhance room temperature ductility and strength. The controlled microstructures hadthree types of structure, fully lamellar, nearly lamellar and duplex, and were produced by cyclic heat-treatment in..... More

                           Cited By 2
Hydrogen-Affected Tensile and Fatigue Properties of Ti-6Al-4V Sheets by Superplastic Forming
Jinil Son, Junhyuk Park, Daeho Jeong, Yongnam Kwon, Masahiro Goto, Sangshik Kim
Korean J. Met. Mater. 2017;55(9):615-623.   Published online 2017 Aug 30
DOI: https://doi.org/10.3365/KJMM.2017.55.9.615

Mill-annealed Ti-6Al-4V (Ti64) sheets were formed into rectangular shaped pans with two square recesses by the superplastic forming (SPF) technique under high pressure using commercial grade argon gas. The SPF process induced a significant decrease in the tensile ductility and high cycle fatigue (HCF) resistance of the Ti64 alloy. The..... More

High Temperature Deformation and Continuous Dynamic Recrystallization Behaviors of AA6082 using Processing Maps
공정지도를 이용한 AA6082 합금의 연속 동적 재결정 및 고온 변형 거동
Sang-Min Lee, Ji-Woon Lee, Hyun-Jin Choi, Soong-Keun Hyun
이상민, 이지운, 최현진, 현승균
Korean J. Met. Mater. 2016;54(11):793-801.   Published online 2016 Nov 5
DOI: https://doi.org/10.3365/KJMM.2016.54.11.793

Torsion tests were performed on AA6082 samples to investigate their flow softening behavior and to determine optimum process conditions. Based on the experimental data and dynamic materials model, high strain processing maps were established which demonstrate the constitutive relationships among temperature, strain rate, strain and stress. The flow curves exhibited..... More

         Cited By 6
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