Yoon-Uk Heo

Associate professor

Pohang University of Science and Technology

South Korea

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Yoon-Uk Heo is an Associate Professor at Pohang University of Science and Technology, South Korea. His research areas include the mechanical properties of advanced alloys, particularly focusing on Fe-Mn-based and high-entropy alloys, as well as the impact of microstructural changes on material behavior. Recent publications highlight his work on transformation behavior in steels and the effects of chemical composition on mechanical properties under various conditions.

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2025

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2023

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2023

Collaborators (2)

Jung Ho Kim

University of Wollongong

AUSTRALIA

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Sangguk Jeong

Specially Appointed Assistant Professor (Research)

Tohoku University

JAPAN

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Yoon-Uk Heo

Research Interests

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About

Articles (20)

Chemical heterogeneity-induced high-strength ductile Fe-12Mn alloy with excellent low-temperature impact toughness

Mo segregation-induced changes of grain boundary segregation, precipitation, and fracture behaviors in Fe–Mn–Ni–Mo maraging steel

Temperature-dependent deformation behavior of dual-phase medium-entropy alloy: In-situ neutron diffraction study

New insights into massive transformation: In-situ X-ray observations and diffuse interface analysis of δ to γ transformation in TRIP steels

Boron-induced unique precipitation behavior at the grain boundary and its effect on the brittle fracture in a Fe-Mn-Al-C-based austenitic lightweight alloy

Restructuring the cell network of non-equiatomic CoCrFeNiMoC medium-entropy alloy fabricated by laser powder bed fusion

Regulation of cryogenic mechanical behaviors of C-added non-equiatomic CoCrFeNiMo ferrous medium-entropy alloy via control of initial microstructure

Strategic enhancement of CoCrFeMnNi high-entropy alloy mechanical properties through a high-strength nano-scale nitride layer without geometrical or tolerance constraints

Comparison of transformation behavior of the peritectic steels with different carbon content and its correlation to the slab quality during solidification

Exploring the impact of intercritical annealing on microstructural evolution and mechanical performance in low alloy multiphase TRIP-assisted steels

Cell boundary engineering of ferrous medium-entropy alloy fabricated by laser powder bed fusion

Direct observation of the ledge-typed twin boundary in a martensitic steel

TEM study on the phase transformation of metastable precipitate to stable phase.

Performance of MgB2 superconducting wire fabricated with non-identical Mg particles

Unprecedented bake hardening responses of interstitial high-entropy alloy by synergistic effect with lattice distortion

Superior gradient heterostructured alloys fabricated by laser powder bed fusion via annealing and ultrasonic nanocrystal surface modification

Cryogenic tensile behavior of laser additive manufactured CoCrFeMnNi high entropy alloys

High-density nanoprecipitates and phase reversion via maraging enable ultrastrong yet strain-hardenable medium-entropy alloy

Synergy of tensile strength-ductility in IN718/CoCrFeMnNi/IN718 multi-material processed by powder high-pressure torsion and annealing

Extraordinary combination of strength and ductility in an additively manufactured Fe-based medium entropy alloy through in situ formed η-nanoprecipitate and heterogeneous microstructure

Collaborators (2)

Jung Ho Kim

Sangguk Jeong

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