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  • Most-cited are based on citations from 2022 ~ 2024.

  • Study of Phase Formation Behavior and Electronic Transport Properties in the FeSe2 -FeTe2 System
    FeSe2-FeTe2 계 다결정 소재의 상 형성 거동 및 전기 전도 특성에 관한 연구
    Okmin Park, TaeWan Kim, Se Woong Lee, Hyun-Sik Kim, Weon Ho Shin, Jamil Ur Rahman, Sang-il Kim
    박옥민, 김태완, 이세웅, 김현식, 신원호, , 김상일
    Korean J. Met. Mater. 2022;60(4):315-320.   Published online 2022 Mar 28
    DOI: https://doi.org/10.3365/KJMM.2022.60.4.315

    Abstract
    In this study, we investigated the phase formation behavior of the FeSe2-FeTe2 system and the evolution of their thermoelectric transport properties. A series of Fe(Se1-xTex)2(x = 0, 0.2, 0.6, 0.8 and 1) compounds were synthesized by conventional solid-state reaction. Single phase orthorhombic structures were formed, except for FeSe0.4Te1.6(x = 0.2)...... More

                       Web of Science 10  Crossref 8
    Recent Research Trends for Improving the Stability of Organo/Inorgano Halide Perovskites
    유무기 하이브리드 할라이드 페로브스카이트의 안정성 향상을 위한 연구 동향 리뷰
    Myeong Jin Seol, Jeong Woo Han, Seung Hwan Hwang, Soo Young Kim
    설명진, 한정우, 황승환, 김수영
    Korean J. Met. Mater. 2022;60(1):1-13.   Published online 2021 Dec 10
    DOI: https://doi.org/10.3365/KJMM.2022.60.1.1

    Abstract
    Because of their superior optical, and electrical properties, lead halide perovskites have emerged as potential materials for light-emitting-diodes. However, some obstacles have yet to be overcome for practical applications including low exciton binding energy, the difficulty of fabricating uniform perovskite films,, and their instability to heat, light, and moisture. In..... More

                       Web of Science 6  Crossref 7
    Effect of Dissolution of η′ Precipitates on Mechanical Properties of A7075-T6 Alloy
    A7075-T6 합금에서 η' 석출상의 재고용이 기계적 특성에 미치는 영향
    Young-We Kim, Yong-Hee Jo, Yun-Soo Lee, Hyoung-Wook Kim, Je-In Lee
    김영위, 조용희, 이윤수, 김형욱, 이제인
    Korean J. Met. Mater. 2022;60(1):83-93.   Published online 2021 Dec 14
    DOI: https://doi.org/10.3365/KJMM.2022.60.1.83

    Abstract
    The effects of dissolution of the η′ phase by solution treatment on the mechanical properties of A7075-T6 alloy were investigated. Immediately after solution treatment of the T6 sheet at 450 oC or higher, elongation significantly increased and dissolution of the η′ phase occurred. η′ is the main hardening phase. After..... More

                    Supplementary       Web of Science 4  Crossref 6
    A Study on the Microstructures and Mechanical Properties of Ni-Cr-Mo-V Low Alloy Steels
    Ni-Cr-Mo-V계 저합금강의 미세조직과 기계적 특성에 관한 연구
    Mu Geun Jo, Seong Hyeon Ryu, Kyung Il Kim, Dong Eung Kim, Jung In Kim, Kyung Taek Kim, Sang Sub Kim, Gue Serb Cho
    조무근, 류성현, 김경일, 김동응, 김정인, 김경택, 김상섭, 조규섭
    Korean J. Met. Mater. 2022;60(4):251-262.   Published online 2022 Mar 28
    DOI: https://doi.org/10.3365/KJMM.2022.60.4.251

    Abstract
    Ni-Cr-Mo-V steel alloys for high-speed railway brake discs were prepared to investigate the effect of alloying element contents on the microstructure and mechanical properties. The Cr, Mo, Mn alloying elements were incorporated into the steel alloys, which contained low carbon content in the range 0.16 wt.% ~ 0.21 wt.% to..... More

                       Web of Science 3  Crossref 5
    Evaluation of Liquation Cracking Susceptibility of CM247LC Superalloy Repair Welds via Pre-Weld Varestraint Test
    Pre-weld Varestraint 시험을 이용한 CM247LC 초내열합금 보수용접부 액화균열 민감도 평가
    Ye-Seon Jeong, Jingon Jeong, Se-Yun Kim, Sung-Hwan Bae, Uijong Lee, Hyungsoo Lee, Seong-Moon Seo, Eun-Joon Chun
    정예선, 정진곤, 김세윤, 배성환, 이의종, 이형수, 서성문, 천은준
    Korean J. Met. Mater. 2022;60(4):272-281.   Published online 2022 Mar 28
    DOI: https://doi.org/10.3365/KJMM.2022.60.4.272

    Abstract
    In this study, the liquation cracking susceptibility in the heat-affected zone of CM247LC superalloy gas turbine blades during repair welding was quantitatively evaluated using a newly developed pre-weld Varestraint test method. The repair welding geometry was replicated through Varestraint tests for the pre-weld bead. The liquation cracking susceptibility, that is,..... More

                       Web of Science 2  Crossref 5
    Microstructure and Mechanical Properties of Vacuum Centrifugal Casted Ti-6Al-4V Alloy by Casting and Heat Treatment
    진공 원심 주조된 Ti-6Al-4V 합금의 주조 및 열처리에 따른 미세조직과 기계적 특성
    Hyun-Woo Lee, Byeong-Ook Kong, Seung Eon Kim, Yunkon Joo, Sukhyun Yoon, Je Hyun Lee
    이현우, 공병욱, 김승언, 주윤곤, 윤석현, 이재현
    Korean J. Met. Mater. 2022;60(4):282-290.   Published online 2022 Mar 28
    DOI: https://doi.org/10.3365/KJMM.2022.60.4.282

    Abstract
    The Ti-6Al-4V alloy has been widely used for structural materials due to high specific strength property, however it is difficult to cast because of high reactivity at high temperature. In this study casting characteristics and post-casting heat treatment were studied in the cast Ti alloy. The cast alloy was prepared..... More

                       Web of Science 3  Crossref 5
    Synthesis of N-type Bi2Te2.7Se0.3 Compounds through Oxide-Reduction Process and Related Thermoelectric Transport Properties
    산화물 환원공정에 의한 n형 Bi2Te2.7Se0.3 화합물의 합성과 열전특성
    Young Soo Lim, Bae Gun Park, Gil-Geun Lee
    임영수, 박배건, 이길근
    Korean J. Met. Mater. 2022;60(6):463-470.   Published online 2022 May 24
    DOI: https://doi.org/10.3365/KJMM.2022.60.6.463

    Abstract
    We present a study on the synthesis of Bi2Te2.7Se0.3 powders through an oxide reduction process and also on the effect of the oxide reduction process on the thermoelectric transport properties of the resulting Bi2Te2.7Se0.3 compounds. Starting materials of Bi2O3, TeO2 and SeO2 were mechanical milled for homogeneous mixing, and then..... More

                       Web of Science 4  Crossref 5
    Skinnerite Cu3SbS3: Solid-State Synthesis and Thermoelectric Properties
    Go-Eun Lee, Il-Ho Kim
    Korean J. Met. Mater. 2022;60(6):455-462.   Published online 2022 May 24
    DOI: https://doi.org/10.3365/KJMM.2022.60.6.455

    Abstract
    Skinnerite Cu3SbS3, which consists of non-toxic and low-cost elements, is a potential thermoelectric material, however, studies on its thermoelectric properties are limited. In this study, the optimal conditions of mechanical alloying (MA) and hot pressing (HP) for the synthesis of the Cu3SbS3 phase were investigated, and its thermoelectric properties were..... More

                       Web of Science 3  Crossref 4
    Effect of Sn addition on the Microstructure and Friction–wear Properties of a Nodular Graphite Cast Iron
    Won-Sang Shin, Seungwoo Baek, Yoon-Jun Kim
    Korean J. Met. Mater. 2022;60(6):471-477.   Published online 2022 May 24
    DOI: https://doi.org/10.3365/KJMM.2022.60.6.471

    Abstract
    Nodular graphite cast iron is used in the railway and automobile industries because of its excellent workability, abrasion resistance, mechanical strength, and hardenability. To use nodular graphite cast iron in harsh environments, it is essential to examine their friction–wear properties in conjunction with the surface hardness of the materials. Therefore,..... More

                       Web of Science 4  Crossref 4
    Effect of Ethylene Glycol on the Dissolution of Palladium with HCl Solution Containing Oxidizing Agents and Selective Precipitation of Pd(IV) Compound
    Viet Nhan Hoa Nguyen, Si Jeong Song, Man Seung Lee
    Korean J. Met. Mater. 2022;60(7):502-510.   Published online 2022 Jun 3
    DOI: https://doi.org/10.3365/KJMM.2022.60.7.502

    Abstract
    There is growing interest in the recovery of pure palladium (Pd) compound from cemented Pd from spent electroplating solutions due to increasing demand for Pd, and there is considerable motivation to develop an efficient recovery process. In conventional methods of leaching Pd metal, HCl solutions containing oxidizing agents are employed...... More

                       Web of Science 4  Crossref 4
    Electrical and Mechanical Properties of Polymer Composite through the Use of Single-Walled Carbon Nanotube and Multi-Walled Carbon Nanotube
    단일벽 탄소나노튜브와 다중벽 탄소나노튜브 사용에 따른 고분자 복합체의 기계적, 전기적 물성
    Byung-Ho Kang, Oh-Nyoung Hur, Soon-Kook Hong, Sung-Hoon Park
    강병호, 허오녕, 홍순국, 박성훈
    Korean J. Met. Mater. 2022;60(9):694-700.   Published online 2022 Aug 30
    DOI: https://doi.org/10.3365/KJMM.2022.60.9.694

    Abstract
    To manufacture composites with required properties, it is extremely important to select an appropriate filler. Carbon-based nano materials such as carbon black, graphene and carbon nanotube (CNT) have been extensively investigated as reinforcing and conducting fillers. Because of their high aspect ratio coupled with superior physical properties, 1-dimensional CNTs are..... More

                       Web of Science 3  Crossref 4
    An Optimization of Manufacturing Process of SS304L Using Direct Energy Deposition Method
    DED 공정에서의 SS304L 적층 조건 최적화
    Sung Eun Kim, Sung Chan Yoo, Hyun-Gil Kim
    김성은, 유승찬, 김현길
    Korean J. Met. Mater. 2022;60(11):819-826.   Published online 2022 Oct 31
    DOI: https://doi.org/10.3365/KJMM.2022.60.11.819

    Abstract
    The direct energy deposition (DED) method is an emerging manufacturing technique that has been recently highlighted due to its capabilities to coat materials with complex geometry for high temperature and highly corrosive environmental applications, such as steam turbine blade. Amongst metallic materials, SS304L has been reported to have superior corrosion..... More

                       Web of Science 4  Crossref 4
    Transition to n-type Thermoelectric Conduction in Ni-doped FeSe2 Alloys
    Young Bin An, Sang Jeong Park, Okmin Park, Sang-il Kim
    Korean J. Met. Mater. 2022;60(12):926-932.   Published online 2022 Nov 25
    DOI: https://doi.org/10.3365/KJMM.2022.60.12.926

    Abstract
    We investigated the effect of Ni doping on the electrical, thermal, and thermoelectric transport properties of FeSe2 polycrystalline alloys. FeSe2 alloys exhibit both n-type and p-type conduction at different temperatures and thus their practicality as a thermoelectric material is somewhat limited. In this study, Fe1-xNixSe2 polycrystalline samples with x =..... More

                       Web of Science 4  Crossref 4
    Effect of Grain Boundary Morphology on the High Temperature Tensile Properties of Developed Ni-Based Superalloy (LESS)
    Ni기 초내열 개발 합금(LESS)의 고온 인장특성에 미치는 결정립계 형상의 영향
    Yong Kwan Shin, Byung Il Kang, Jeong IL Youn, Yong Nam Kwon, Young Jig Kim
    신용관, 강병일, 윤정일, 권용남, 김영직
    Korean J. Met. Mater. 2022;60(12):940-949.   Published online 2022 Nov 25
    DOI: https://doi.org/10.3365/KJMM.2022.60.12.940

    Abstract
    In order to investigate the mechanical properties of the developed wrought γ'-hardened Ni-based superalloy, LESS alloy (Low Eta Sigma Superalloy), and to understand the deformation behavior, tensile tests were carried out from room temperature to 800oC in comparison with IN 740H alloy. Like other superalloys, the tensile properties of the..... More

                       Web of Science 2  Crossref 4
    Highly Stretchable Strain Sensor with a High and Broad Sensitivity Composed of Carbon Nanotube and Ecoflex Composite
    카본나노튜브/Ecoflex 복합체로 제작된 고신축성 및 고감도 신축성 스트레인 센서
    Yuhwan Hwangbo, Hyun Jin Nam, Sung-Hoon Choa
    황보유환, 남현진, 좌성훈
    Korean J. Met. Mater. 2023;61(7):500-508.   Published online 2023 Jun 21
    DOI: https://doi.org/10.3365/KJMM.2023.61.7.500

    Abstract
    Wearable strain sensors with high and broad sensitivity, high stretchability and excellent mechanical endurance will be widely useful in smart wearable electronics. In this work, we developed a stretchable strain sensor fabricated with a simple stencil printing technique. The stretchable strain sensor was fabricated using a multi-walled carbon nanotubes (MWCNTs)-Ecoflex..... More

                       Web of Science 4  Crossref 4
    Effect of Minor Alloying Elements (C, Ni, Cr, Mo) on the Long-Term Corrosion Behaviors of Ultrahigh-Strength Automotive Steel Sheet in Neutral Aqueous Environment
    자동차용 초고강도급 강재 내 미량 첨가된 합금원소 (C, Ni, Cr 및 Mo)가 중성 수용액 환경 내 장기 부식거동에 미치는 영향
    Hye Rin Bang, Jin-seong Park, Hwan Goo Seong, Sung Jin Kim
    방혜린, 박진성, 성환구, 김성진
    Korean J. Met. Mater. 2022;60(1):35-45.   Published online 2021 Dec 10
    DOI: https://doi.org/10.3365/KJMM.2022.60.1.35

    Abstract
    This study examined the effects of minor alloying elements (C, Ni, Cr, and Mo) on the long-term corrosion behaviors of ultrahigh-strength automotive steel sheets with a tensile strength of more than 1800 MPa. A range of experimental and analytical results showed that the addition of Ni, Cr, and Mo decreased..... More

                       Web of Science 4  Crossref 3
    Improving the Corrosion Resistance of AISI 316L Steel for Semiconductor Piping by Controlled Delta-Ferrite Content
    Young Woo Seo, Chan Yang Kim, Bo Kyung Seo, Won Sub Chung
    Korean J. Met. Mater. 2022;60(1):46-52.   Published online 2021 Dec 10
    DOI: https://doi.org/10.3365/KJMM.2022.60.1.46

    Abstract
    This study evaluated changes in delta-ferrite content depending on the preheating of AISI 316L stainless steel. We also determined the reasons for the variation in delta-ferrite content, which affects corrosion resistance. Changes in delta-ferrite content after preheating was confirmed using a Feritscope, and the microstructure was analyzed using optical microscopy..... More

                       Web of Science 3  Crossref 3
    Separation of Pd(II) and Zn(II) by Solvent Extraction using Commercial Extractants from Hydrochloric Acid Leaching Solution of Cemented Pd from Spent Electroplating Solutions
    도금폐액에 함유된 팔라듐의 아연치환물 염산침출액에서 상용화추출제를 이용한 용매추출로 팔라듐(II)과 아연(II)의 분리
    Si Jeong Song, Viet Nhan Hoa Nguyen, Man Seung Lee
    송시정, Viet Nhan Hoa Nguyen, 이만승
    Korean J. Met. Mater. 2022;60(3):188-197.   Published online 2022 Feb 8
    DOI: https://doi.org/10.3365/KJMM.2022.60.3.188

    Abstract
    The demand for palladium (Pd) has increased and this has made it necessary to recover pure Pd from diverse secondary resources. To recover the small amount of Pd(II) present in spent electroplating solutions, Pd(II) is concentrated by cementation with zinc metal. In this work, a hydrometallurgical process consisting of leaching..... More

                       Web of Science 3  Crossref 3
    Effects of Blended Poly(3-hexylthiophene) and 6,13-bis(triisopropylsilylethynyl) pentacene Organic Semiconductors on the Photoresponse Characteristics of Thin-Film Transistors
    Hyunji Shin, Hyeonju Lee, Bokyung Kim, Xue Zhang, Jin-Hyuk Bae, Jaehoon Park
    Korean J. Met. Mater. 2022;60(3):198-205.   Published online 2022 Feb 8
    DOI: https://doi.org/10.3365/KJMM.2022.60.3.198

    Abstract
    In this study, we demonstrate high-performance optical wavelength-selective organic thin-film transistors (TFTs) that incorporate heterogeneous organic semiconductor materials, poly(3-hexylthiophene) (P3HT) and 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-pentacene). The electrical characteristics of the fabricated transistors were analyzed in the dark to determine how the P3HT:TIPS-pentacene ratio of the semiconductor affected the performance of the..... More

                       Web of Science 2  Crossref 3
    Tensile and Fatigue Characteristics of WC-20wt%Co Cemented Carbide with Sintering Methods
    소결 방법에 따른 WC-20wt%Co 초경합금의 인장 특성 및 피로 수명
    Seong Hyeon Ryu, Mu Geun Jo, Kyung Il Kim, Wooram Noh, Ik Je Hong, Kwang Hee Lee, Sang Sub Kim, Gue Serb Cho
    류성현, 조무근, 김경일, 노우람, 홍익제, 이광희, 김상섭, 조규섭
    Korean J. Met. Mater. 2022;60(3):227-236.   Published online 2022 Feb 8
    DOI: https://doi.org/10.3365/KJMM.2022.60.3.227

    Abstract
    WC-Co cemented carbide has excellent mechanical properties and is widely used in many industrial applications including cold forging die and cutting tools. WC-Co cemented carbide is manufactured by liquid phase sintering (LPS), and a new sintering process for densification has been developed. In this study, cylindrical rod shaped tensile and..... More

                       Web of Science 2  Crossref 3
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