Dong-Geun Lee
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Dong-Geun Lee has a total of 12 co-authors. Here are the top co-authors by number of shared publications:
Ch. Li
1 shared publicationChenglin Li
State Key Laboratory for Fabrication & Processing of Nonferrous Metals, General Research Institute for Nonferrous Metals, Beijing, China
1 shared publicationGi-Seung Shin
1 shared publicationJ. Seo
1 shared publicationNho-Kwang Park
1 shared publicationSongxiao Hui
State Key Laboratory for Fabrication & Processing of Nonferrous Metals, General Research Institute for Nonferrous Metals, Beijing, China
1 shared publication
Latest Publications
- 30 June 2017
- Published by The Korean Powder Metallurgy & Materials Institute in Journal of Powder Materials
- Vol. 24 (3) , 235-241
Effect of Mn Addition on Sintering Properties of Ti-10wt.%Al-xMn Powder Alloy
- 30 June 2017
- Published by The Korean Powder Metallurgy & Materials Institute in Journal of Powder Materials
- Vol. 24 (3) , 235-241
Effect of Mn Addition on Sintering Properties of Ti-10wt.%Al-xMn Powder Alloy
- 26 February 2016
- Published by Springer Nature in Metallurgical and Materials Transactions A
- Vol. 47 (5) , 2454-2461
Effect of Al Addition on ω Precipitation and Age Hardening of Ti-Al-Mo-Fe Alloys
- 26 February 2016
- Published by Springer Nature in Metallurgical and Materials Transactions A
- Vol. 47 (5) , 2454-2461
Effect of Al Addition on ω Precipitation and Age Hardening of Ti-Al-Mo-Fe Alloys
- Open Access
- 1 June 2015
- Published by Walter de Gruyter GmbH in Archives of Metallurgy and Materials
- Vol. 60 (2) , 1393-1396
Phase Transformation And Mechanical Properties Of Ti-12.1Mo-1Fe Alloy With Nano-Sized Precipitation
Microstructural characterization and aging hardening behaviors of a new designed Ti-12.1Mo-1Fe alloy during solution treatment and aging were investigated in the present study. It is well known that when β-Ti alloys are generally under solution treatment or aging, α phases and ω phases appear or disappear dependent on heat treatment temperature and holding time. It is very necessary to understand the phase transformation phenomenon and to control the microstructure because these phases can control the drastic changes of the mechanical and physical properties of these alloys. According to the calculated [Mo]eq value and the microstructural observation, the β-transus temperature was about 780°. After the solution treatment, this alloy was composed of the β-phase and the microstructure mainly consisted of the equiaxed β grains with the average size of 25 μm. ω phases which were precipitated during aging process, played a more important role to the hardening effect than α phases. The highest hardness value of Ti-12.1Mo-1Fe alloy showed in the condition of the aging temperature of 450°. The hardening due to ω-phase precipitation can lead to a high hardness about 480 Hv but the coarse α-phase result in hardness below 300 Hv.
- 1 June 2015
- Published by Walter de Gruyter GmbH in Archives of Metallurgy and Materials
- Vol. 60 (2) , 1393-1396
Open AccessPhase Transformation And Mechanical Properties Of Ti-12.1Mo-1Fe Alloy With Nano-Sized Precipitation
Microstructural characterization and aging hardening behaviors of a new designed Ti-12.1Mo-1Fe alloy during solution treatment and aging were investigated in the present study. It is well known that when β-Ti alloys are generally under solution treatment or aging, α phases and ω phases appear or disappear dependent on heat treatment temperature and holding time. It is very necessary to understand the phase transformation phenomenon and to control the microstructure because these phases can control the drastic changes of the mechanical and physical properties of these alloys. According to the calculated [Mo]eq value and the microstructural observation, the β-transus temperature was about 780°. After the solution treatment, this alloy was composed of the β-phase and the microstructure mainly consisted of the equiaxed β grains with the average size of 25 μm. ω phases which were precipitated during aging process, played a more important role to the hardening effect than α phases. The highest hardness value of Ti-12.1Mo-1Fe alloy showed in the condition of the aging temperature of 450°. The hardening due to ω-phase precipitation can lead to a high hardness about 480 Hv but the coarse α-phase result in hardness below 300 Hv.