Search Results - "JO, C.Y."

Effects of Alumina on Cristobalite Crystallization and Properties of Silica-Based Ceramic Cores by Liang, J.J., Lin, Q.H., Zhang, X., Jin, T., Zhou, Y.Z., Sun, X.F., Choi, B.G., Kim, I.S., Do, J.H., Jo, C.Y.

“…In this work, the influences of alumina addition on cristobalite crystallization and properties of injec- tion molded silica-based ceramic cores were…”
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Effect of Ru additions on very high temperature creep properties of a single crystal Ni-based superalloy by Tan, X.P., Liu, J.L., Jin, T., Hu, Z.Q., Hong, H.U., Choi, B.G., Kim, I.S., Jo, C.Y., Mangelinck, D.

“…The creep deformation of three single crystal Ni-based superalloys with various Ru contents has been investigated to clarify the effect of Ru additions at very…”
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Deformation mechanisms of a nickel-based single-crystal superalloy during low-cycle fatigue at different temperatures by Wang, X.G., Liu, J.L., Jin, T., Sun, X.F., Zhou, Y.Z., Hu, Z.Q., Do, J.H., Choi, B.G., Kim, I.S., Jo, C.Y.

“…Deformation mechanisms of an Ni-based superalloy during low-cycle fatigue at various temperatures were studied. A new configuration of cross-slip dislocation…”
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Anomalous deformation behavior and twin formation of Ni-base superalloys at the intermediate temperatures by Kim, I.S., Choi, B.G., Hong, H.U., Yoo, Y.S., Jo, C.Y.

“…► Abrupt decrease of elongation in the intermediate temperatures is found in the superalloys. ► Microtwinning is a predominant deformation mechanism at…”
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The effect of grain boundary serration on creep resistance in a wrought nickel-based superalloy by Hong, H.U., Kim, I.S., Choi, B.G., Kim, M.Y., Jo, C.Y.

“…Grain boundary serration, as a function of heat treatment parameters, and its effect on creep resistance have been investigated in a wrought nickel-based…”
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A comparative study on thermomechanical and low cycle fatigue failures of a single crystal nickel-based superalloy by Hong, H.U., Kang, J.G., Choi, B.G., Kim, I.S., Yoo, Y.S., Jo, C.Y.

“…► There was a significant decrease in OP TMF lives compared to LCF lives. ► OP TMF condition was found to accelerate surface crack initiation and propagation…”
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Effect of microstructural characteristics on the low cycle fatigue behaviors of cast Ni-base superalloys by Kim, I.S., Choi, B.G., Jung, J.E., Do, J., Jo, C.Y.

“…Low cycle fatigue behaviors of two cast Ni-base superalloys have been investigated. Effects of microstructure of a solution hardened alloy and a precipitation…”
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Localized microtwin formation and failure during out-of-phase thermomechanical fatigue of a single crystal nickel-based superalloy by Hong, H.U., Yoon, J.G., Choi, B.G., Kim, I.S., Yoo, Y.S., Jo, C.Y.

“…► The deformation was highly localized to area near crack tip. ► The localized twins provided a preferential crack path during OP TMF cycling. ► The atomistic…”
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Effects of temperature and strain range on fatigue cracking behavior in Hastelloy X by Hong, H.U., Kim, I.S., Choi, B.G., Jeong, H.W., Jo, C.Y.

“…The low cycle fatigue tests of Ni-base superalloy Hastelloy X have been carried out in the temperature range of 650 – 870 °C with various total strain ranges…”
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Microstructure evolution in directionally solidified Fe–18Cr stainless steels by Lee, J.H., Kim, H.C., Jo, C.Y., Kim, S.K., Shin, J.H., Liu, S., Trivedi, R.

“…Directional solidification experiments were conducted in commercial Fe–18Cr stainless steels with 0, 3, 5 wt.% Al contents. The unique feature of this alloy…”
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Compositional prediction of creep rupture life of single crystal Ni base superalloy by Bayesian neural network by Yoo, Y.S., Jo, C.Y., Jones, C.N.

“…The creep rupture lives of single crystal Ni base superalloys are predicted as a function of alloy composition, creep stress, and creep temperature. A database…”
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MC carbide formation in directionally solidified MAR-M247 LC superalloy by Chen, J, Lee, J.H, Jo, C.Y, Choe, S.J, Lee, Y.T

“…MC-type carbide formation in MAR-M247 LC superalloy was systematically investigated using directional solidification and quenching methods in sample growth…”
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Effect of pre-strain on microstructural evolution during thermal exposure of single crystal superalloy CMSX-4 by CHOI, B.G., JO, C.Y., HONG, H.U., KIM, I.S., SEO, S.M., KIM, H.M.

“…Compressive and tensile pre-strains at room temperature were induced in the second generation single crystal superalloy CMSX-4 fully heat treated. Both…”
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Influence of thermal exposure on the microstructural evolution and mechanical properties of a wrought Ni-base superalloy by Kim, I.S., Choi, B.G., Hong, H.U., Do, J., Jo, C.Y.

“…Phase transformation and microstructural evolution of a wrought Ni-base superalloy Alloy 263 during long-term exposure to high temperatures have been studied…”
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Creep deformation related to dislocations cutting the γ′ phase of a Ni-base single crystal superalloy by Wang, X.G., Liu, J.L., Jin, T., Sun, X.F., Zhou, Y.Z., Hu, Z.Q., Do, J.H., Choi, B.G., Kim, I.S., Jo, C.Y.

“…The microstructures of a Ru-containing single crystal superalloy have been characterized after creep deformation at 1000°C under 270MPa, 290MPa and 310MPa and…”
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Dependence of stacking faults in gamma matrix on low-cycle fatigue behavior of a Ni-based single-crystal superalloy at elevated temperature by Wang, X.G., Liu, J.L., Liu, J.D., Zhou, Y.Z., Li, J.G., Sun, X.F., Do, J.H., Choi, B.G., Kim, I.S., Jo, C.Y.

“…The LCF behavior of a fourth-generation Ni-based single-crystal superalloy at elevated temperature with different total strain amplitudes has been studied…”
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On the mechanism of secondary reaction zone formation in a coated nickel-based single-crystal superalloy containing ruthenium by Hong, H.U., Yoon, J.G., Choi, B.G., Kim, I.S., Jo, C.Y.

“…The secondary reaction zone (SRZ) formation at the interface between CoNiCrAlY coating and experimental Ni-based single-crystal superalloy substrate with 1wt.%…”
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Dislocation motion during high-temperature low-stress creep in Ru-free and Ru-containing single-crystal superalloys by Wang, X.G., Liu, J.L., Jin, T., Sun, X.F., Hu, Z.Q., Do, J.H., Choi, B.G., Kim, I.S., Jo, C.Y.

“…•SFs present in the γ matrix of 3Ru alloy after heat treatment.•Dislocation motion at different creep stages has been studied in detail.•Calculation on…”
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Influence of chromium content on microstructure and grain boundary serration formation in a ternary Ni- x Cr-0.1C model alloy by Latief, F.H., Hong, H.U., Blanc, T., Kim, I.S., Choi, B.G., Jo, C.Y., Lee, J.H.

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Effect of ruthenium on high-temperature creep rupture life of a single crystal nickel-based superalloy by Tan, X.P., Liu, J.L., Jin, T., Hu, Z.Q., Hong, H.U., Choi, B.G., Kim, I.S., Jo, C.Y.

“…[Display omitted] ► Ru improves the high-temperature creep rupture lives. ► Discussion involves the dislocation movement and γ′ phase evolution. ► The change…”
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