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  • Most-cited are based on citations from 2020 ~ 2022.

  • 49 Synthesis and Characterization of the Cu0.72Co2.28O4 Catalyst for Oxygen Evolution Reaction in an Anion Exchange Membrane Water Electrolyzer
    음이온 교환막 수전해에 사용되는 Cu0.72Co2.28O4 산소 발생 촉매의 합성 및 특성 분석
    Sung Min Park, Myeong Je Jang, Yoo Sei Park, Jooyoung Lee, Jae-yeop Jeong, Jaehoon Jung, Min-Kwan Choi, Yu-Seong Noh, Min-Ho Seo, Hyung Ju Kim, Juchan Yang, Yang Do Kim, Sung Mook Choi
    박성민, 장명제, 박유세, 이주영, 정재엽, 정재훈, 최민관, 노유성, 서민호, 김형주, 양주찬, 김양도, 최승목
    Korean J. Met. Mater. 2020;58(1):49-58.   Published online 2019 Dec 12
    DOI: https://doi.org/10.3365/KJMM.2020.58.1.49

    Abstract
    In this study, we investigated the morphological, crystal structural, electronic structural, and electrocatalytic properties of the inverse spinel structured copper cobalt oxide (Cu0.72Co2.28O4) catalysts. The materials were prepared by coprecipitation using various copper and cobalt precursors, and subsequent oxidation treatment. Electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Brunauer Emmett..... More

                               Cited By 7
    272 Solid-State Synthesis and Thermoelectric Properties of Tetrahedrites Cu12Sb4-yBiyS13
    Sung-Gyu Kwak, Ji-Hee Pi, Go-Eun Lee, Il-Ho Kim
    Korean J. Met. Mater. 2020;58(4):272-277.   Published online 2020 Mar 9
    DOI: https://doi.org/10.3365/KJMM.2020.58.4.272

    Abstract
    Tetrahedrite has low lattice thermal conductivity because of the lone-pair electrons of Sb, which cause the Cu atoms to vibrate at a low frequency and high amplitude. The synthesis of tetrahedrite compounds by conventional melting methods requires a long-time reaction and annealing. However, a homogeneous and solid-state synthesis can be..... More

                               Cited By 6
    293 Effect of Bainitic Microstructure on Low-Temperature Toughness of High-Strength API Pipeline Steels
    고강도 API 라인파이프강의 저온 인성에 미치는 베이나이트계 미세조직의 영향
    Seung-Wan Lee, Sang-In Lee, Byoungchul Hwang
    이승완, 이상인, 황병철
    Korean J. Met. Mater. 2020;58(5):293-303.   Published online 2020 Apr 20
    DOI: https://doi.org/10.3365/KJMM.2020.58.5.293

    Abstract
    In this study the correlation between bainitic microstructure and the low-temperature toughness of high-strength API pipeline steels was discussed in terms of crack initiation and propagation in the microstructure. Three types of API pipeline steels with different bainitic microstructures were fabricated using varying alloying elements and thermo-mechanical processing conditions, and..... More

                               Cited By 5
    7 Effect of Heat Treatment on Mechanical Properties and Energy Absorption Capacity of 7003 Aluminum Alloy
    7003 알루미늄 합금의 기계적 성질 및 에너지 흡수능에 미치는 열처리 조건의 영향
    Hee-Ju Kim, Jeki Jung, Su-Hyeon Kim, Cha-Yong Lim, Yoon Suk Choi
    김희주, 정제기, 김수현, 임차용, 최윤석
    Korean J. Met. Mater. 2020;58(1):7-16.   Published online 2019 Dec 12
    DOI: https://doi.org/10.3365/KJMM.2020.58.1.7

    Abstract
    The effects of heat treatment conditions on the mechanical properties and energy absorption capacity of 7003 (Al-6Zn-0.6Mg) aluminum alloy were studied. The extruded material was heat treated at various temperatures to prepare annealed or aged specimens. Tensile tests, hardness measurements, electron backscatter diffraction characterizations, and differential scanning calorimeter analyses were..... More

                               Cited By 4
    599 Study on Hydrogen Diffusion and Sulfide Stress Cracking Behaviors of Simulated Heat-Affected Zone of A516-65 Grade Pressure Vessel Carbon Steel
    A516-65급 압력용기용 강재의 용접모사 열처리를 통한 용접열영향부의 수소확산 및 황화물응력균열 거동 연구
    Dong Min Cho, Jin-seong Park, Jin Woo Lee, Sung Jin Kim
    조동민, 박진성, 이진우, 김성진
    Korean J. Met. Mater. 2020;58(9):599-609.   Published online 2020 Aug 13
    DOI: https://doi.org/10.3365/KJMM.2020.58.9.599

    Abstract
    Hydrogen diffusion and sulfide stress cracking of simulated heat-affected zone (HAZ) of A516- 65 grade steel were examined using an electrochemical permeation technique, glycerin volumetric method, and constant loading method. HAZ samples were fabricated using a metal thermal cycle simulator with a welding heat input of 20, 35, and 50..... More

                               Cited By 4
    453 Mechanical Properties and Rapid Sintering of WC-BN-Al Composites
    WC-BN-Al복합재료 급속소결 및 기계적 성질
    Seong-Eun Kim, Su-Hwan Hong, In-Jin Shon
    김성은, 홍수환, 손인진
    Korean J. Met. Mater. 2020;58(7):453-458.   Published online 2020 Jul 5
    DOI: https://doi.org/10.3365/KJMM.2020.58.7.453

    Abstract
    Tungsten carbides are quite attractive for their superior properties, e.g., high melting point, high hardness, high thermal and electrical conductivities, and relatively high chemical stability. Tungsten carbides with a binder metal, for example Co or Ni, are mainly used to produce cutting tools, nozzles and molds in the composite form...... More

                               Cited By 4
    533 Property Evaluation of Tungsten-Carbide Hard Materials as a Function of Fe Contents
    Fe 함량변화에 따른 텅스텐카바이드 초경소재의 특성평가
    Ju-Hun Kim, Jeong-Han Lee, Junho Jang, Ik-Hyun Oh, Sung-Kil Hong, Hyun Kuk Park
    김주훈, 이정한, 장준호, 오익현, 홍성길, 박현국
    Korean J. Met. Mater. 2020;58(8):533-539.   Published online 2020 Jul 27
    DOI: https://doi.org/10.3365/KJMM.2020.58.8.533

    Abstract
    In this study, consolidated WC-Fe compacts as a function of Fe contents were fabricated by a spark plasma sintering method, following the mixed by the ball-milled powder. Fe among the metallic binders was added to WC enhance not only the driving force of sintering process but also suppressing the grain..... More

                               Cited By 4
    550 A Study on the Supersonic Jet Nozzle to Improve of the Operating Efficiency of the Converter Process
    전로 공정 조업 효율 향상을 위한 초음속 제트 노즐 연구
    Jae-Hong Kwon, Ji-A Lee, Kyeng-Uk Lee, Jeong-Whan Han
    권재홍, 이지아, 이경욱, 한정환
    Korean J. Met. Mater. 2020;58(8):550-559.   Published online 2020 Jul 27
    DOI: https://doi.org/10.3365/KJMM.2020.58.8.550

    Abstract
    Recently, various worldwide studies have been conducted to improve converter operation by modifying the lance nozzle. In this study, a numerical analysis of the lance nozzle was conducted to improve the dephosphorization efficiency, and to reduce blowing time. The lance nozzle was designed in the form of an abnormal expansion..... More

                               Cited By 4
    660 Effect of Ni, C and Ti Addition on Shape Recovery Behavior and the Mechanical Properties of Fe-17Mn-5Si-5Cr Shape Memory Alloys
    Fe-17Mn-5Si-5Cr 형상기억합금의 형상복원거동 및 기계적 특성에 미치는 Ni, Ti 및 C의 영향
    Dohyoung Kim, Yonghwan Kim, Jeong-Jung Oak, Junghoon Lee, Chan Hee Park, Wookjin Lee, Yongho Park
    김도형, 김용환, 옥정중, 이정훈, 박찬희, 이욱진, 박용호
    Korean J. Met. Mater. 2020;58(10):660-671.   Published online 2020 Oct 5
    DOI: https://doi.org/10.3365/KJMM.2020.58.10.660

    Abstract
    Fe-Mn-Si based shape memory alloy is a new functional material that can be used to apply prestress to civil and structural components such as concrete structures. In this study, the effects of alloying elements Ni, C and Ti on the mechanical and shape memory properties of the alloy were investigated..... More

                               Cited By 4
    776 Rapid Sintering and Synthesis of Nanocrystalline Ta-ZrO2 Composite
    나노구조 Ta-ZrO2 복합재료 합성과 급속소결
    Seong-Eun Kim, In-Jin Shon
    김성은, 손인진
    Korean J. Met. Mater. 2020;58(11):776-781.   Published online 2020 Oct 15
    DOI: https://doi.org/10.3365/KJMM.2020.58.11.776

    Abstract
    ZrO2 is a promising candidate for knee and hip joint replacements due to its excellent combination of low density, corrosion resistance and biocompatibility. Nevertheless, a low fracture toughness of pure ZrO2 at room temperature limits its wider application in the industry. One of the most obvious ways to solve the..... More

                               Cited By 4
    182 Long-time Oxidation of Ti3(Al,Si)C2 Carbides at 400-800 oC
    Junhee Hahn, Sang Whan Park, Dong Bok Lee
    Korean J. Met. Mater. 2020;58(3):182-189.   Published online 2020 Mar 5
    DOI: https://doi.org/10.3365/KJMM.2020.58.3.182

    Abstract
    Quarternay carbides of Ti3AlxSi1-xC2 (x=0.3, 0.5, and 0.7) were oxidized at 400, 600, and 800 °C for 0.5-6 months in order to study their long-time oxidation behavior in air. When they were oxidized at 400-600 oC for 0.5-3 months, oxidation proceeded relatively slowly with moderate weight gains. However, further oxidation..... More

                               Cited By 3
    217 Effects of Ni and Cu Addition on Tensile Properties and Thermal Conductivity of High Pressure Die-cast Al-6Si Alloys
    고압 다이캐스팅 Al-6Si계 합금의 인장특성 및 열전도성에 미치는 Ni과 Cu 첨가 영향
    Jae-Cheol Jang, Kwang Seon Shin
    장재철, 신광선
    Korean J. Met. Mater. 2020;58(4):217-226.   Published online 2020 Mar 10
    DOI: https://doi.org/10.3365/KJMM.2020.58.4.217

    Abstract
    In this study, the effects of nickel and copper on the mechanical and thermal properties of Al-Si alloys were investigated, for different alloy compositions. Thermodynamic calculations were carried out to predict the alloys’ solidification behavior (solidification temperature, solid fraction and physical properties (density, thermal conductivity, elastic modulus, bulk modulus)). The..... More

                               Cited By 3
    403 Effect of Cladding Conditions on Solidification Cracking Behavior during Dissimilar Cladding of Inconel Alloy FM 52 and 308L Stainless Steel to Carbon Steel: Evaluation of Solidification Brittle Temperature Range by Transverse−Varestraint Test
    인코넬 FM52 및 308L 스테인리스강을 이용한 탄소강 이종 클래딩 및 공정변수에 따른 응고균열 발생 거동 변화: Transverse-Varestraint 시험을 이용한 응고취성 온도범위 평가
    Yookyung Kim, Byungrok Moon, Namhyun Kang, Eun-Joon Chun
    김유경, 문병록, 강남현, 천은준
    Korean J. Met. Mater. 2020;58(6):403-412.   Published online 2020 May 14
    DOI: https://doi.org/10.3365/KJMM.2020.58.6.403

    Abstract
    In this study, solidification cracking behavior and susceptibility in dissimilar cladding of Inconel alloy FM 52, 308L stainless steel to carbon steel, was investigated by submerged arc welding and transverse−Varestraint testing with gas tungsten arc welding. The effect of cladding conditions on cracking behavior and susceptibility was extensively evaluated, and..... More

                               Cited By 3
    626 Graphene Oxide Coated Silver Nanofiber Transparent Conducting Electrode
    전기방사법을 이용한 산화 그래핀-은 나노섬유 투명전극
    Jae Young Hyeon, Sung-Hoon Choa, Kyoung Wan Park, Jung Hyun Sok
    현재영, 좌성훈, 박경완, 석중현
    Korean J. Met. Mater. 2020;58(9):626-632.   Published online 2020 Aug 19
    DOI: https://doi.org/10.3365/KJMM.2020.58.9.626

    Abstract
    We fabricated a transparent conducting electrode composed of graphene oxide (GO) and silver (Ag) nanofibers. The graphene oxide was spray-coated on the Ag nanofiber film, which was fabricated by electrospinning process. Ag/poly(vinyl alcohol) ink was fabricated in a polymer matrix solution using the solgel method. The sprayed film was sintered..... More

                               Cited By 3
    680 Effects of Heat Treatment Condition and Counter Materials on the Wear Behavior of Laser Direct Energy Deposited Fe-8Cr-3V-2Mo-2W Alloy
    레이저 직접적층법으로 제조된 Fe-8Cr-3V-2Mo-2W합금의 마모특성에 미치는 열처리공정 및 상대재의 영향
    Kyeongsik Ha, Young Keun Park, Taehwan Kim, Gyeong Yun Baek, Jong Bae Jeon, Do-sik Shim, Young Hoon Moon, Wookjin Lee
    하경식, 박영근, 김태환, 백경윤, 전종배, 심도식, 문영훈, 이욱진
    Korean J. Met. Mater. 2020;58(10):680-692.   Published online 2020 Oct 5
    DOI: https://doi.org/10.3365/KJMM.2020.58.10.680

    Abstract
    This study aimed to investigate the wear performance of laser direct energy deposited Fe-8Cr3V-2Mo-2W alloy under various wear environments, in terms of different heat treatment conditions. Ball on disk tribology tests were performed using high-carbon steel and zirconia balls as counter materials. The wear rates of the alloy depended significantly..... More

                               Cited By 3
    852 Effect of Shielding Gases on the Wire Arc Additive Manufacturability of 5 Cr – 4 Mo Tool Steel for Die Casting Mold Making
    Jae-Deuk Kim, Jae Won Kim, Joo Yong Cheon, Yang-Do Kim, Changwook Ji
    Korean J. Met. Mater. 2020;58(12):852-862.   Published online 2020 Dec 4
    DOI: https://doi.org/10.3365/KJMM.2020.58.12.852

    Abstract
    Generally, molds are fabricated by the machining of massive billets of tool steels, such as AISI4140 or H13, but it has drawbacks, such as a large material loss and long-delivery time. The Wire-Arc Additive Manufacturing (WAAM) process could be an alternative fabrication method. It has the advantages of less material..... More

                               Cited By 3
    875 Evaluation of Liquation Cracking Behavior and Susceptibility in Heat-Affected Zone of CM247LC Superalloy Welds for Turbine Blade Application
    CM247LC 초내열합금 터빈 블레이드 용접 열영향부의 액화균열 발생 거동 및 민감도 평가
    Ye-Seon Jeong, Kyeong-Min Kim, Uijong Lee, Hyungsoo Lee, Seong-Moon Seo, Eun-Joon Chun
    정예선, 김경민, 이의종, 이형수, 서성문, 천은준
    Korean J. Met. Mater. 2020;58(12):875-886.   Published online 2020 Dec 4
    DOI: https://doi.org/10.3365/KJMM.2020.58.12.875

    Abstract
    In this study, the weldability of the as-cast CM247LC superalloy for turbine blade applications was metallurgically evaluated in terms of its hot cracking behavior and susceptibility. For this purpose, a real blade was manufactured using a directional solidification casting process, and gas tungsten arc welding was performed at the tip..... More

                               Cited By 3
    32 Study on the Selective Surface Modification of Injection Mold Steels by Laser Materials Processing: Relationship Between AlN Formation and Surface Hardening During Laser Nitriding
    레이저 가공 기반 사출 금형강의 선택적 표면 개질 연구: 레이저 나이트라이딩에 따른 AlN 형성 및 경화 거동
    Eun-Joon Chun, Changkyoo Park, Wonah Park
    천은준, 박창규, 박원아
    Korean J. Met. Mater. 2020;58(1):32-40.   Published online 2019 Dec 12
    DOI: https://doi.org/10.3365/KJMM.2020.58.1.32

    Abstract
    Laser surface heat treatment and laser nitriding processes were applied using selective surface modification techniques to investigate phase transformation, microstructural evolution, and surface hardening behaviors for two types of plastic injection mold steels, AISI 1045 and P21. During laser surface heat treatment, a 245% hardness increase compared to that of..... More

                               Cited By 2
    59 Properties of Double Electron Transport Layered Perovskite Solar Cells with Different ZrO2 Layer Thickness
    이중 전자전달층 페로브스카이트 태양전지의 ZrO2층 두께에 따른 물성 연구
    Hyeryeong Lee, Kwangbae Kim, Ohsung Song
    이혜령, 김광배, 송오성
    Korean J. Met. Mater. 2020;58(1):59-66.   Published online 2019 Dec 12
    DOI: https://doi.org/10.3365/KJMM.2020.58.1.59

    Abstract
    The photovoltaic properties of TiO2/ZrO2 double electron transport layered perovskite solar cells were investigated based on the ZrO2 layer thickness. Samples were fabricated with a glass/FTO/TiO2/ZrO2/ perovskite structure. The TiO2/ZrO2 layer thickness ratio was confirmed to be 264/0, 228/168, 228/204, 270/242, and 282/288 nm, respectively, using an electron probe microanalyzer...... More

                               Cited By 2
    67 Size Dependency of a ZnO Nanorod-Based Piezoelectric Nanogenerator Evaluated by Conductive Atomic Force Microscopy
    전도식 원자현미경을 이용한 ZnO 나노로드 기반 압전 나노발전기의 사이즈 의존성 평가
    Yijun Yang, Kwanlae Kim
    양이준, 김관래
    Korean J. Met. Mater. 2020;58(1):67-75.   Published online 2020 Jan 1
    DOI: https://doi.org/10.3365/KJMM.2020.58.1.67

    Abstract
    ZnO nanorods are one of the most studied materials because it can be facilely grown on a wide range of substrates at low temperature. ZnO exhibits piezoelectricity as well as semiconducting properties, and hence is applicable to piezoelectric nanogenerators and sensors. In the present work, the effect of ZnO nanorods’..... More

                               Cited By 2
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