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  • Most-cited are based on citations from 2018 ~ 2020.

  • Effect of BN Addition on the Mechanical Properties of TiN-BN Composites
    Woo-Jin Cho, In-Jin Shon
    Korean J. Met. Mater. 2018;56(9):658-663.   Published online 2018 Sep 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.9.658

    Titanium nitride (TiN) has been used extensively in coating materials and cutting tools because of its attractive properties, which include low density, high melting point, high hardness and thermodynamic stability. However, like many ceramic materials, its low fracture toughness limits wide industrial application. The methods generally utilized to improve its..... More

                               Cited By 9
    Solvent Extraction of Tb(III) from Hydrochloric Acid Solution with Cyanex 272, Its Mixture and Ionic Liquid
    염산용액에서 Cyanex 272 및 혼합용매와 이온성 액체에 의한 Tb(III)의 용매추출
    Chang Geun Oh, Man Seung Lee
    오창근, 이만승
    Korean J. Met. Mater. 2018;56(12):870-877.   Published online 2018 Dec 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.12.870

    Cyanex 272 shows the highest separation factor for the rare earth elements from hydrochloric acid solution among the organophosporus acidic extractants, D2EHPA and PC 88A. Solvent extraction of Tb(III) from weak hydrochloric acid solution with an initial pH 3 to 6 was compared with Cyanex 272, its mixture with Alamine..... More

                               Cited By 8
    Hydrogen Storage Properties of Mg-Graphene Composites
    Myoung Youp Song, Young Jun Kwak, Eunho Choi
    Korean J. Met. Mater. 2018;56(7):524-531.   Published online 2018 Jul 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.7.524

    To improve the hydrogen uptake and release properties of magnesium (Mg), five weight percent of graphene was added to pre-milled Mg by milling in hydrogen (reaction-involving milling). The hydrogen uptake and release properties of the graphene-added Mg (named Mg-5graphene) were investigated. Premilling of Mg (for 24 h) and then adding..... More

                               Cited By 7
    Synthesis and Characterization of ZnO/TiO2 Photocatalyst Decorated with PbS QDs for the Degradation of Aniline Blue Solution
    Jong-Ho Lee, Hong-Joo Ahn, Jeong-Il Youn, Young-Jig Kim, Su-Jeong Suh, Han-Jun Oh
    Korean J. Met. Mater. 2018;56(12):900-909.   Published online 2018 Dec 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.12.900

    A ZnO/TiO2 photocatalyst decorated with PbS quantum dots (QDs) was synthesized to achieve high photocatalytic efficiency for the decomposition of dye in aqueous media. A TiO2 porous layer, as a precursor photocatalyst, was fabricated using micro-arc oxidation, and exhibited irregular porous cells with anatase and rutile crystalline structures. Then, a..... More

                               Cited By 7
    Effect of Al Addition on the Microstructure, Tensile Properties, and Bendability of Extruded Mg-7Sn-1Zn Alloy
    Al 첨가가 Mg-7Sn-1Zn 합금 압출재의 미세조직과 인장 및 굽힘 특성에 미치는 영향
    Sang-Hoon Kim, Jong Un Lee, Ye Jin Kim, Jae Ok Choi, Jeong-Hun Lee, Sung Hyuk Park
    김상훈, 이종언, 김예진, 최재옥, 이정훈, 박성혁
    Korean J. Met. Mater. 2018;56(1):40-48.   Published online 2018 Jan 1
    DOI: https://doi.org/10.3365/KJMM.2018.56.1.40

    The effect of Al addition on the microstructure and mechanical properties of extruded Mg-Sn based alloy is investigated by adding 1 wt% Al to the Mg-7Sn-1Zn alloy and indirectly extruding the billets with and without the Al addition. The Al addition promotes dynamic recrystallization (DRX) behaviour during hot extrusion, which..... More

             Cited By 6
    Enhancement of the Hydrogen-Storage Characteristics of Mg by Adding Mg2Ni and Ni to MgH2 via High Energy Ball Milling in Hydrogen Atmosphere
    Seong-Hyeon Hong, Young Jun Kwak, Myoung Youp Song
    Korean J. Met. Mater. 2018;56(1):59-65.   Published online 2018 Jan 1
    DOI: https://doi.org/10.3365/KJMM.2018.56.1.59

    In this work, Mg2Ni and Ni were added to MgH2 in order to improve the hydrogen-storage properties of Mg. A 94 wt% MgH2+5 wt% Mg2Ni+1wt% Ni (named 94MgH2+5Mg2Ni+1Ni) sample was prepared by milling in a hydrogen atmosphere in a planetary ball mill for 5 h. The Mg2Ni was hydrided during..... More

             Cited By 6
    Hydrogen Uptake and Release Characteristics of Mg-xTaF5-xVCl3 (x=1.25, 2.5, and 5)
    Myoung Youp Song, Young Jun Kwak
    Korean J. Met. Mater. 2018;56(8):611-619.   Published online 2018 Aug 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.8.611

    TaF5 and VCl3 were chosen as additives to enhance the hydrogen uptake and release rates of Mg. The total content of the additives was not more than 10 wt% since too high content reduces the fraction of Mg and thus the hydrogen storage capacity of the alloys. Samples with compositions..... More

                               Cited By 6
    Development of a Mg-Based Alloy with a Hydrogen-Storage Capacity of 7 wt% by Adding a Polymer CMC via Transformation-Involving Milling
    Myoung Youp Song, Eunho Choi, Young Jun Kwak
    Korean J. Met. Mater. 2018;56(5):392-399.   Published online 2018 May 8
    DOI: https://doi.org/10.3365/KJMM.2018.56.5.392

    The addition of CMC (Carboxymethylcellulose, Sodium Salt) may improve the hydriding and dehydriding properties of Mg since it has a relatively low melting point and the melting of CMC during transformation-involving milling may put the milled samples in good states to absorb and release hydrogen rapidly. Samples with compositions of..... More

             Cited By 5
    Effect of Carbon Contents on Corrosion and Hydrogen Diffusion Behaviors of Ultra-Strong Steels for Automotive Applications
    탄소함량이 자동차용 초고강도 철강소재의 부식 및 수소 확산 거동에 미치는 영향
    Eun Hye Hwang, Hwan Goo Seong, Sung Jin Kim
    황은혜, 성환구, 김성진
    Korean J. Met. Mater. 2018;56(8):570-579.   Published online 2018 Aug 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.8.570

    Recently developed ultra-strong GIGA STEEL exhibites superior mechanical properties, with a high tensile strength of more than 1.5 GPa and good impact toughness. Nevertheless, its application to auto parts has been severely restricted, mainly due to a substantial reduction in the resistance to hydrogen embrittlement (HE) induced by aqueous corrosion...... More

                               Cited By 5
    Raising the Dehydrogenation Rate of a Mg-CMC (Carboxymethylcellulose, Sodium Salt) Composite by Alloying Ni via Hydride-Forming Milling
    Myoung Youp Song, Eunho Choi, Young Jun Kwak
    Korean J. Met. Mater. 2018;56(8):620-627.   Published online 2018 Aug 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.8.620

    In our previous work, samples with a composition of 95 wt% Mg + 5 wt% CMC (Carboxymethylcellulose, Sodium Salt, [C6H7O2(OH)x(C2H2O3Na)y]n) (named Mg-5 wt%CMC) were prepared through hydride-forming milling. Mg-5 wt%CMC had a very high hydrogenation rate but a low dehydrogenation rate. Addition of Ni to Mg is known to increase..... More

                               Cited By 5
    Effects of Tempering Condition on the Microstructure and Mechanical Properties of 30MnB5 Hot-Stamping steel
    핫스탬핑용 30MnB5강의 템퍼링 조건에 따른 미세조직 및 기계적 물성 연구
    Junyeong Jeong, Sang-Cheon Park, Ga-Young Shin, Chang Wook Lee, Tae-Jeong Kim, Min-Su Choi
    정준영, 박상천, 신가영, 이창욱, 김태정, 최민수
    Korean J. Met. Mater. 2018;56(11):787-795.   Published online 2018 Nov 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.11.787

    The effects of tempering condition on the microstructure and mechanical properties of 30MnB5 hot stamping steel were investigated in this study. Before the tempering, hot-stamped 30MnB5 steel was composed of only α′-martensite microstructure without precipitates. After the tempering at 180 ℃ for 120 min, nano-sized ε-carbides were precipitated in the..... More

                               Cited By 5
    MoS2/CNFs derived from Electrospinning and Heat treatment as the Efficient Electrocatalyst for Hydrogen Eovlution Reaction in Acidic Solution
    전기 방사를 이용한 1D / 2D 하이브리드 구조 고활성 MoS2 / CNF 수소 발생 촉매의 합성 및 특성 분석
    Jeong Hun Lee, Yoo Sei Park, Myeong Je Jang, Sung Min Park, Kyu Hwan Lee, Woo Sung Choi, Sung Mook Choi, Yang Do Kim
    이정훈, 박유세, 장명제, 박성민, 이규환, 최우성, 최승목, 김양도
    Korean J. Met. Mater. 2018;56(12):885-892.   Published online 2018 Dec 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.12.885

    Molybdenum disulfide (MoS2) based electrocatalysts have been proposed as substitutes for platinum group metal (PGM) based electrocatalyst to hydrogen evolution reaction (HER) in water electrolysis. Here, we studied MoS2/CNFs hybrid catalyst prepared by electrospinning method with heat treatment for polymer electrolyte membrane(PEM) water electrolysis to improve the HER activity. The..... More

                               Cited By 5
    Anisotropy in Green Body Bending Strength due to Additive Direction in the Binder-Jetting Additive Manufacturing Process
    Ji-Won Oh, Sahn Nahm, Byoungmoon Kim, Hanshin Choi
    Korean J. Met. Mater. 2019;57(4):227-235.   Published online 2019 Apr 5
    DOI: https://doi.org/10.3365/KJMM.2019.57.4.227

    The additive manufacturing (AM) process is a production technology process that has recently attracted attention. Among AM processes, the binder jetting (BJ) method is advantageous because it allows both wide material selection and design freedom. However, the output arrangement, which determines the direction in which the binder is injected during..... More

                               Cited By 5
    Hydrogen Induced Crack Propagation in Bainitic X70 Steel in Hydrogen Pressured Tensile Test
    베이나이트계 X70강 수소가압분위기 인장시험의 수소취성균열 전파
    Byung Hak Choe, Hyeon Su Jang, Bum Gyu Lee, Eui Soo Kim, Woo Sik Kim, Un Bong Baek, Sung Hoon Nam
    최병학, 장현수, 이범규, 김의수, 김우식, 백운봉, 남승훈
    Korean J. Met. Mater. 2018;56(1):1-7.   Published online 2018 Jan 1
    DOI: https://doi.org/10.3365/KJMM.2018.56.1.1

    This study investigated hydrogen induced cracking (HIC) of X70 steel, used for gas pipeline material, with a bainitic microstructure. The effect of hydrogen on the steel was investigated by tensiletesting in a high pressure hydrogen atmosphere, using OM, SEM and TEM analyses. The mechanisms of hydrogen-related cracking were represented as..... More

             Cited By 4
    Effect of Carbon Addition and Recrystallization on the Microstructure and Mechanical Properties of CoCrFeMnNi High Entropy Alloys
    CoCrFeMnNi 고엔트로피 합금에서 탄소 첨가 및 재결정열처리가 미세구조 및 기계적 특성에 미치는 영향
    Jun Yeong Ko, Jae Sook Song, Sun Ig Hong
    고준영, 송재숙, 홍순익
    Korean J. Met. Mater. 2018;56(1):26-33.   Published online 2018 Jan 1
    DOI: https://doi.org/10.3365/KJMM.2018.56.1.26

    The effect of carbon addition on the cast and rolled microstructures of CoCrFeMnNi high entropy alloys were studied. Both as-cast CoCrFeMnNi and CoCrFeMnNiC0.1 alloys have a dendritic microstructure. Small carbide particles were observed at the inter-dendritic region in the as-cast CoCrFeMnNiC0.1 and elongated-grained structure with aligned carbides were developed at..... More

             Cited By 4
    Infrared Spectra and Thermal Properties of Sodium Silicate Solutions
    규산나트륨 수용액의 분자결합구조 및 열적특성 연구
    Young Bok Ryu, Man Sig Lee
    류영복, 이만식
    Korean J. Met. Mater. 2018;56(1):72-78.   Published online 2018 Jan 1
    DOI: https://doi.org/10.3365/KJMM.2018.56.1.72

    An inorganic binder is a good way to mitigate the environmental issues of organic binders containing phenol, formaldehyde, etc. One of the most representative materials in the field of inorganic moulding sand binders is a group of binder systems based on alkali silicate compounds, however, many aspects need to be..... More

             Cited By 4
    Effect of Sn Content on Filler and Bonding Characteristics of Active Metal Brazed Cu/Al2O3 Joint
    Jioh Shin, Ashutosh Sharma, Do-hyun Jung, Jae Pil Jung
    Korean J. Met. Mater. 2018;56(5):366-374.   Published online 2018 May 8
    DOI: https://doi.org/10.3365/KJMM.2018.56.5.366

    This study examined the effects of the Sn content in a pure active metal filler Ag-Cu-Ti for the brazing of a Cu/ Al2O3 joint. The optimal content of Sn to effectively wet alumina was 5 wt%. The microstructure of the brazed joint showed the presence of an Ag-rich matrix and..... More

             Cited By 4
    Microstructure and Room Temperature Wear Properties of a Ni-Cr-B-Si-C Coating Layer Manufactured by the Laser Cladding Process
    Laser Cladding 공정으로 제조된 Ni-Cr-B-Si-C 코팅층의 미세조직 및 상온 마모 특성
    Tae-Hoon Kang, Kyu-Sik Kim, Soon-Hong Park, Kee-Ahn Lee
    강태훈, 김규식, 박순홍, 이기안
    Korean J. Met. Mater. 2018;56(6):423-429.   Published online 2018 Jun 4
    DOI: https://doi.org/10.3365/KJMM.2018.56.6.423

    A Ni-Cr-B-Si-C coating layer was manufactured on a plate of Fe base alloy using a laser cladding process, and the microstructural and mechanical properties of the laser cladded coating layer and a Ni electroplating layer (used as a reference material) were investigated. To identify the microstructural and mechanical properties, scanning..... More

                               Cited By 4
    Thermoelectric Properties of Partially Double-filled (Ce1-zNdz)yFe4-xCoxSb12 Skutterudites
    Ye-Eun Cha, Il-Ho Kim
    Korean J. Met. Mater. 2018;56(6):465-471.   Published online 2018 Jun 4
    DOI: https://doi.org/10.3365/KJMM.2018.56.6.465

    (Ce1-zNdz)yFe4-xCoxSb12 skutterudites were prepared by encapsulated melting, annealing, and hot pressing. The formation of a marcasite phase (FeSb2) was significantly suppressed by partially filling the voids with Ce/Nd and making a Co substitution at the Fe site. Both the Hall and the Seebeck coefficient values were positive, indicating that all..... More

                               Cited By 4
    Recovery of Lithium as Li3PO4 from Waste Water in a LIB Recycling Process
    폐리튬이온전지 재활용 공정 폐액으로부터 리튬의 회수를 위한 인산리튬 침전 특성 연구
    Young-Jun Song
    Korean J. Met. Mater. 2018;56(10):755-762.   Published online 2018 Oct 5
    DOI: https://doi.org/10.3365/KJMM.2018.56.10.755

    This study was conducted to obtain engineering design data for a process to recover lithium in the form of Li3PO4 from the waste water of a lithium ion battery (LIB) recycling process. The influence of temperature, pH, and concentration on the solubility of Li3PO4 and the reaction rate in the..... More

                               Cited By 4
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