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  1. No Access

    Article

    Mechanical Stability of Retained Austenite and Texture Evolution in Additively Manufactured Stainless Steel

    We employed two additive manufacturing (AM) strategies perpendicular to each other in AM stainless steel. In contrast to the vertically-built strategy, the horizontally-built one imposed higher tensile strengt...

    Hobyung Chae, E-Wen Huang, Jayant Jain, Dong-Hyun Lee… in Metals and Materials International (2024)

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    Article

    Evaluation of Supercritical Carbon Dioxide Corrosion by High Temperature Oxidation Experiments and Machine Learning Models

    Corrosion behaviors of ferritic-martensitic, austenitic steels, and Ni-based alloys were examined in high-temperature CO2 environments. Aside from the conventional evaluation, we further used machine learning bas...

    Hobyung Chae, Sukho Seo, Yong Chan Jung… in Metallurgical and Materials Transactions A (2022)

  3. Article

    Preface to Innovations in High-Entropy Alloys and Bulk Metallic Glasses in Honor of Peter K. Liaw

    Michael C. Gao, E-Wen Huang, Yanfei Gao… in Metallurgical and Materials Transactions A (2021)

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    Article

    Phase Stress Partition in Gray Cast Iron Using In Situ Neutron Diffraction Measurements

    Gray cast iron comprises α-Fe, Fe3C and graphite with their different anisotropies in terms of structure and mechanical behavior. We perform two different deformation paths as tension-compression and compression-...

    Tu-Ngoc Lam, Szu-Chien Wu, Hobyung Chae… in Metallurgical and Materials Transactions A (2020)

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    Article

    Stress Corrosion Cracking of a Copper Pipe in a Heating Water Supply System

    Stress corrosion cracking behavior of a copper pipe and its mechanism were investigated in a heating water supply system using both metallurgical and mechanical analyses. The X-ray diffraction and energy dispe...

    Hobyung Chae, Huai Wang, Minki Hong, Woo Cheol Kim… in Metals and Materials International (2020)

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    Article

    Failure Analysis of a Water Wall Boiler Tube for Power Generation in a District Heating System

    Corrosion failure of materials often exposed to the corrosive environment in district heating systems is critical for operation and maintenance of the facility. It is important to establish a prevention method...

    Minki Hong, Hobyung Chae, Woo Cheol Kim, Jung-Gu Kim… in Metals and Materials International (2019)

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    Article

    Correlation of eddy current responses between fatigue cracks and electrical-discharge-machining notches

    The eddy current responses of Electrical Discharge Machining (EDM) notches and fatigue cracks are directly compared to verify the reliability of eddy current inspection. The fatigue crack growth tests using a ...

    Sukho Seo, Gyudong Choi, Tae Jhoun Eom, Bokwon Lee… in Metals and Materials International (2017)

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    Chapter

    Plastic Deformation of Magnesium Alloy Subjected to Compression-First Cyclic Loading

    In-situ neutron diffraction has been employed to study the deformation mechanisms in a precipitation-hardened and extruded Mg-8.5wt.% Al alloy subjected to compression followed by reverse tension. The starting...

    Soo Yeol Lee, Michael A. Gharghouri, John H. Root in Magnesium Technology 2011 (2016)

  9. No Access

    Article

    Three-Orthogonal-Direction Stress Map** around a Fatigue-Crack Tip Using Neutron Diffraction

    Quantitative determination of the stress fields around the crack tip is a challenging and important subject to understand the fatigue crack-growth mechanism. In the current study, we measured the distribution ...

    E-Wen Huang, Soo Yeol Lee, Wanchuck Woo… in Metallurgical and Materials Transactions A (2012)