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Dive into the research topics where Yeon-Seung Jung is active.

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Featured researches published by Yeon-Seung Jung.


Microscopy and Microanalysis | 2009

In-Situ Tensile Observation of Deformation Twin in TWIP Steel Using TEM

Sung-Il Baik; Tae-Young Ahn; Woong-Pyo Hong; Yeon-Seung Jung; Young-Kook Lee; Young-Woon Kim

Fe–Mn twinning-induced plasticity (TWIP) steels have attracted research attention due to its high strength and exceptional plasticity in recent years [1]. These enhanced superior formability and strength satisfied the improved safety standards for high energy absorption in the construction and crash resistance in the automotive industry. In this Fe Mn TWIP steel, stacking fault energy (SFE) is the key parameter to determine the strengthening mechanism [2]. But stacking fault related microstructure changes were well studied but the formation mechanism of twin is not well understood. In this study, the generation of mechanical twin was observed by in-situ tensile test in TEM and the effect of SFE was discussed linked with the measured SFE.


Materials Science and Engineering A-structural Materials Properties Microstructure and Processing | 2010

Effects of recrystallization annealing temperature on carbide precipitation, microstructure, and mechanical properties in Fe–18Mn–0.6C–1.5Al TWIP steel

Singon Kang; Yeon-Seung Jung; Joong-Hwan Jun; Young-Kook Lee


Acta Materialia | 2013

The effects of Si on the mechanical twinning and strain hardening of Fe-18Mn-0.6C twinning-induced plasticity steel

Kookhyun Jeong; Jae-Eun Jin; Yeon-Seung Jung; Singon Kang; Young-Kook Lee


Scripta Materialia | 2008

Effect of grain size on transformation-induced plasticity in an ultrafine-grained metastable austenitic steel

Chan-Soo Yoo; Yong-Min Park; Yeon-Seung Jung; Young-Kook Lee


Materials Science and Engineering A-structural Materials Properties Microstructure and Processing | 2007

Effect of grain size on the uniform ductility of a bulk ultrafine-grained alloy

Jae-Eun Jin; Yeon-Seung Jung; Young-Kook Lee


Metals and Materials International | 2011

Effect of grain size on strain-induced martensitic transformation start temperature in an ultrafine grained metastable austenitic steel

Yeon-Seung Jung; Young-Kook Lee; David K. Matlock; Martin C. Mataya


Acta Materialia | 2013

The effects of N on the microstructures and tensile properties of Fe-15Mn-0.6C-2Cr-xN twinning-induced plasticity steels

Yeon-Seung Jung; Singon Kang; Kookhyun Jeong; Jae-Gil Jung; Young-Kook Lee


Materials Science and Engineering A-structural Materials Properties Microstructure and Processing | 2012

Orientation-dependent indentation modulus and yielding in a high Mn twinning-induced plasticity steel

Singon Kang; Yeon-Seung Jung; Byung-Gil Yoo; Jae-il Jang; Young-Kook Lee


Scripta Materialia | 2014

The effect of nitrogen on the stacking fault energy in Fe–15Mn–2Cr–0.6C–xN twinning-induced plasticity steels

Seung-Joon Lee; Yeon-Seung Jung; Sung-Il Baik; Young Woon Kim; Mihyun Kang; Wanchuck Woo; Young-Kook Lee


Scripta Materialia | 2008

Effect of pre-deformation on the tensile properties of a metastable austenitic steel

Yeon-Seung Jung; Young-Kook Lee

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