Search Results - "Kwak, T.Y."

The effect of volume fraction and dispersion of icosahedral phase particles on the strength and work hardening of Mg-Zn-Y alloys by Kwak, T.Y., Kim, W.J.

“…The cast microstructure of a Mg-13Zn-1.55Y alloy (ZW132) with a high volume fraction of I-phase (7.4%) was refined considerably by severe plastic deformation…”
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Effect of the volume fraction of the icosahedral phase on the microstructures, hot compressive behaviors and processing maps of Mg-Zn-Y alloys by Kwak, T.Y., Lim, H.K., Kim, W.J.

“…The effect of the volume fraction (0.6–8.4 vol %) of the icosahedral phase (I-phase, Mg3Zn6Y1) on the microstructure, hot deformation mechanism and hot…”
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Refinement of the icosahedral quasicrystalline phase and the grain size of Mg–9.25Zn–1.66Y alloy by high-ratio differential speed rolling by Kwak, T.Y., Lim, H.K., Han, S.H., Kim, W.J.

“…Differential speed rolling was applied to a Mg–9.25Zn–1.66Y alloy with an icosahedral quasicrystalline (I) phase to refine its cast microstructure by severe…”
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Additive manufacturing of a porous titanium layer structure Ti on a Co–Cr alloy for manufacturing cementless implants by Kwak, T.Y., Yang, J.Y., Heo, Y.B., Kim, S.J., Kwon, S.Y., Kim, W.J., Lim, D.H.

“…In the present study, a porous Ti layer was deposited on the surface of a Co–Cr alloy using the directed energy deposition process, and the effects of the…”
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Mechanical properties and Hall-Petch relationship of the extruded Mg-Zn-Y alloys with different volume fractions of icosahedral phase by Kwak, T.Y., Kim, W.J.

“…The effect of the volume fraction (0.6–8.4%) of the icosahedral phase (I-phase) on the microstructure, texture and mechanical properties of extruded Mg-Zn-Y…”
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Effect of refinement of grains and icosahedral phase on hot compressive deformation and processing maps of Mg-Zn-Y magnesium alloys with different volume fractions of icosahedral phase by Kwak, T.Y., Kim, W.J.

“…The effect of the volume fraction of I-phase on the hot compressive behavior and processing maps of the extruded Mg-Zn-Y alloys was examined, and the obtained…”
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Superplastic behavior of an ultrafine-grained Mg-13Zn-l.SSY alloy with a high volume fraction of icosahedral phases prepared by high-ratio differential speed rolling by T.Y. Kwak W.J. Kim

“…An ultrafine-grained （UFG） Mg-13Zn-1.55Y alloy （ZW132） with a high volume fraction （7.4%） of icosa-hedral phase （/-phase, Mg3Zn6Y） particles was prepared by…”
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Superplastic behavior of an ultrafine-grained Mg-13Zn-1.55Y alloy with a high volume fraction of icosahedral phases prepared by high-ratio differential speed rolling by Kwak, T.Y., Kim, W.J.

“…An ultrafine-grained (UFG) Mg-13Zn-1.55Y alloy (ZW132) with a high volume fraction (7.4%) of icosahedral phase (I-phase, Mg3Zn6Y) particles was prepared by…”
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The effect of 0.5 wt.% Ca addition on the hot compressive characteristics and processing maps of the cast and extruded Mg–3Al–1Zn alloys by Kwak, T.Y., Lim, H.K., Kim, W.J.

“…The hot compressive characteristics and processing maps of the extruded 0.5 wt.% Ca–AZ31 (Ca–AZ31) alloy and the extruded AZ31 alloy were examined and compared…”
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Hot compression behavior of the 1 wt% calcium containing Mg-8Al-0.5Zn (AZ80) alloy fabricated using electromagnetic casting technology by KWAK, T. Y, KIM, W. J

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Hot compression characteristics and processing maps of a cast Mg–9.5Zn–2.0Y alloy with icosahedral quasicrystalline phase by Kwak, T.Y., Lim, H.K., Kim, W.J.

“…Hot compressive characteristics and processing maps of a cast Mg-9.5Zn-2.0Y alloy with I-phase (ZW92) were studied in the temperature range between 523 and 723…”
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Hot compression behavior of the ignition-resistant Mg–5Y–2.5Zn–1.2Ca alloy with long-period stacking ordered structures by Kwak, T.Y., Lim, H.K., Kim, W.J.

“…•Hot compressive deformation behaviors of the Mg–5Y–2.5Zn–(1.2Ca) alloys were studied.•Mg2Ca phase coexisted with the LPSO phase.•The addition of Ca markedly…”
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Hot compression behavior of the 1wt% calcium containing Mg–8Al–0.5Zn (AZ80) alloy fabricated using electromagnetic casting technology by Kwak, T.Y., Kim, W.J.

“…An AZ80 alloy containing 1wt% Ca (1wt% Ca-AZ80 alloy) was fabricated using a combination of electromagnetic casting and electromagnetic stirring. Due to the…”
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Effect of Ca and CaO on the microstructure and hot compressive deformation behavior of Mg–9.5Zn–2.0Y alloy by Kwak, T.Y., Lim, H.K., Kim, W.J.

“…In this study, the effect of adding 0.3wt% Ca to a Mg–9.5Zn–2.0Y alloy with icosahedral (I) phase (Mg3Zn6Y) was examined. The Ca alloying was done by two…”
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Statistical mechanical description of supercritical fluid extraction and retrograde condensation by PARK, S. J, KWAK, T. Y, MANSOORI, G. A

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