연구성과 4 페이지 | 포항공과대학교 친환경소재대학원

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연구성과

Total 147건 4 페이지

99

SNMPL [SNMPL]Prof. Hyoung-Seop Kim : Constitutive modeling of cellular-structured metals produced by additive manufacturing Abstract : Computational modeling is essential in the development and application of metal additive manufacturing (MAM). Most materials processed by laser or electron beam MAM exhibit a characteristic cellular structure, where the cel..

작성자 최고관리자 작성일 2022-11-14
98

CSPL [CSPL]Prof. Jung-Wook Cho : Resolving the mixed-alkali effect on the viscoelastic behavior of supercooled liquids Abstract : Relaxation processes in mixed-alkali metaphosphate glasses and supercooled liquids are studied using a combination of calorimetric, electrical impedance spectroscopic and rheological measurements to inves- tigate the atomistic na..

작성자 최고관리자 작성일 2022-11-04
97

NEDL [NEDL]Prof. Changshin Jo : Designing fluorine-free electrolytes for stable sodium metal anodes and high-power seawater batteries via SEI reconstruction Abstract : Fluorine (F) is regarded as a key element in electrolytes for sodium metal anodes (SMAs) because of the formation of NaF containing solid–electrolyte interphase (SEI) layers; however, the high-cost and HF formation iss..

작성자 최고관리자 작성일 2022-11-02
96

ADL [ADL]Prof. Yoon-Uk Heo : Improved hot ductility of an as-cast high Mn TWIP steel by direct implementation of an MnS-containing master alloy Abstract: Transverse cracking is the main issue during continuous casting of TWIP steels due to degraded hot ductility at 700–950 ◦C. In this study, we improve the hot ductility of an 18.1Mn-0.68C-1.5Al (wt.%) TWIP steel by refining t..

작성자 최고관리자 작성일 2022-10-19
95

ADL [ADL]Prof. Yoon-Uk Heo : AlN-assisted internal oxidation behavior in Al-containing high Mn steels Abstract: The role of AlN on the internal oxidation behavior was investigated in Al-containing high Mn steels. Accelerated internal oxidation behavior was confirmed as Al contents increased. The sequential formation of internal&n..

작성자 최고관리자 작성일 2022-10-19
94

CTL [CTL] Prof. Chang Hee Yim: Effect of Reheating Temperatures on Hot Ductility and Precipitation Behavior of Low-Carbon Steels The influence of reheating temperatures on hot ductility is investigated in two Ni-, Mo-, and Cu-containing low-carbon steels. The effects of solution treatment conditions at 1623, 1673 K, and remelting at 1803 K on the reductio..

작성자 최고관리자 작성일 2022-09-07
93

SSL [SSL]Prof. Sung-Joon Kim : Effect of Zn‑Coating Process on Liquid Metal Embrittlement of TRIP Steel AbstractThe study investigated the microstructural evolution of the coating and liquid metal embrittlement (LME) sensitivity of the transformation induced plasticity (TRIP) steel sheets which were prepared by different coating process..

작성자 최고관리자 작성일 2022-08-19
92

SSL [SSL]Prof.Sung-Joon Kim : Effects of Ni/Cu replacement on improvement of tensile and hydrogen-embrittlement properties in austenitic stainless steels Abstract : Effects of Ni/Cu replacement and subsequent aging treatment on tensile and hydrogen embrittlement (HE) properties were investigated in Fe-Cr-Ni austenitic stainless steels. With the Ni/Cu replacement, tensile strength ..

작성자 최고관리자 작성일 2022-08-19
91

MML [MML]Prof.Frederic Barlat : Finite element implementation of hydrostatic pressure-sensitive plasticity and its application to distortional hardening model and sheet metal forming simulations In this work, the hydrostatic pressure-dependency of the distortional plasticity model HAH20 was implemented using a finite element (FE) code to account for the strength-differential (SD) effect that has been observed in advanced high..

작성자 최고관리자 작성일 2022-08-04
90

MML [MML]Prof.Frederic Barlat : Investigation of Elastic Modulus Degradation and Recovery with Time and Baking Process for Deformed Automotive Steel Sheets This study investigated the elastic recovery phenomenon with elapsed time and heat treatment after the plastic deformation of automotive steel sheets. A conventional uniaxial loading–unloading-loading test was modified to include the ..

작성자 최고관리자 작성일 2022-08-04
89

CML [CML]Prof.Dong-Woo Suh: Interplay of Nb addition and annealing temperature and its influence on microstructure and tensile properties of multiphase steel We investigated the interplay of Nb addition and annealing temperature and its influence on the microstructure evolution in low carbon cold-rolled steel to understand the unique change of tensile properties derived by Nb addition. Whi..

작성자 최고관리자 작성일 2022-06-14
88

CML [CML]Prof.Dong-Woo Suh: Microstructure and tensile properties of chemically heterogeneous steel consisting of martensite and austenite We made the chemical heterogeneity in steel consisting of mostly martensite with retained austenite by applying intercritical annealing prior to full austenitization. It enables simultaneous improvement in strength and ductility, which have..

작성자 최고관리자 작성일 2022-06-14
87

SNMPL [SNMPL]Prof.Hyoung-Seop Kim:Novel deep learning approach for practical applications of indentation The instrumented indentation technique has been investigated to efficiently evaluate the mechanical responses of materials with few limitations on the shape and size of the specimen. There have been attempts to discover a direct..

작성자 최고관리자 작성일 2022-05-04
86

SNMPL [SNMPL]Prof.Hyoung-Seop Kim:High-entropy alloys with heterogeneous microstructure: Processing and mechanical properties Engineering metallic materials are an essential class of materials for a variety of industrial applications due to their competitive mechanical properties, especially strength and ductility. Metallic materials with excellent mechanic..

작성자 최고관리자 작성일 2022-05-03
85

PML [PML]Prof.Eul-Bum Lee:The Engineering Machine-Learning Automation Platform (EMAP): A Big-Data-Driven AI Tool for Contractors’ Sustainable Management Solutions for Plant Projects Plant projects, referred to as Engineering Procurement and Construction (EPC), generatemassive amounts of data throughout their life cycle, from the planning stages to the operation andmaintenance (OM) stages. Many EPC contractors struggle ..

작성자 최고관리자 작성일 2022-04-11
84

PML [PML]Prof. Eul-Bum Lee:AI and Text-Mining Applications for Analyzing Contractor’s Risk in Invitation to Bid (ITB) and Contracts for Engineering Procurement and Construction (EPC) Projects Contractors responsible for the whole execution of engineering, procurement, and construction(EPC) projects are exposed to multiple risks due to various unbalanced contracting methods suchas lump-sum turn-key and low-bid selection. Although..

작성자 최고관리자 작성일 2022-04-01

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