Research Achievements 1 페이지 | 포항공과대학교 친환경소재대학원

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Research Achievements

Total 9건 1 페이지

9

CTL [CTL] Prof. Chang Hee Yim: Effect of Reheating Temperatures on Hot Ductility and Precipitation Behavior of Low-Carbon Steels The influence of reheating temperatures on hot ductility is investigated in two Ni-, Mo-, and Cu-containing low-carbon steels. The effects of solution treatment conditions at 1623, 1673 K, and remelting at 1803 K on the reduction in a..

작성자 최고관리자 작성일 2022-09-07
8

CTL [CTL] Prof. Jung-Wook Cho: Effect of Zr addition on metastable Liquid-Liquid Phase Separation of Cu-Fe alloys The liquid-liquid phase separation (LLPS) behavior was investigated in Cu-Fe alloys that consisted of 60 wt % or 80 wt % Cu and balance iron, without or with addition of 1 wt% Zr. Both Zr-free alloys clearly showed LLPS at metastable spinod..

작성자 최고관리자 작성일 2022-02-22
7

CTL [CTL] Prof. Jung-Wook Cho: Numerical modeling of oxide particle evolution during additive manufacturing In this study, oxide particle evolution during additive manufacturing was modelled to elucidate the evolution and suggest effective ways to increase oxide-dispersion strengthening. The model coupled the Kampmann and Wagner numerical model w..

작성자 최고관리자 작성일 2022-02-08
6

CTL [CTL] Prof. Chang Hee Yim: The effect of Ni depletion on athermal martensitic transformation in 304 austenitic stainless steel Chemical and microstructural analyses were performed on Ni depletion zones in 304 austenitic stainless steelsheets after annealing and cooling with three different rates (0.2, 18.6, 160.0 ◦C/s). The analysis was focused onthe characteristic..

작성자 최고관리자 작성일 2021-08-26
5

CTL [CTL] Prof. Chang Hee Yim: Defect Formation Mechanism on the Surface of Cu-alloyed Steel During Heavy Plate Rolling .

작성자 최고관리자 작성일 2019-09-29
4

CTL [CTL] Prof. Jung-Wook Cho: Thermal history driven molecular structure transitions in alumino-borosilicate glass The glass network structure governs various thermos-physical properties such as viscosity, thermal, and electrical conductivities, and crystallization kinetics. We investigated the effect of temperature on structural changes in a Na2O-CaOAl..

작성자 최고관리자 작성일 2019-08-23
3

CTL [CTL] Fazlollah Sadeghi: Optimizing Grain Selection Design in the Single-Crystal An attempt is made to model the design of grain selection during single-crystal solidification of an Ni-based superalloy by the Bridgman method. Various geometrical designs of the starter block and spiral grain selector are chosen and their..

작성자 최고관리자 작성일 2018-12-31
2

CTL [CTL] Prof. Jung-Wook Cho: Thermal history driven molecular structure transitions in alumino-borosilicate glass The glass network structure governs various thermos-physical properties such as viscosity, thermal, and electrical conductivities, and crystallization kinetics. We investigated the effect of temperature on structural changes in a Na2O-CaOAl..

작성자 최고관리자 작성일 2018-09-30
1

CTL [CTL] Prof. Jung-Wook Cho: oxide metallurgy during AM In laser metal deposition (LMD) process, meltpool oxidation is inevitable due to high working temperature, which results in finely dispersed non-metallic inclusions in the steel matrix. In this paper, characteristics of these inclusion, suc..

작성자 최고관리자 작성일 2018-09-30

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