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Evolution of Microstructures and Mechanical Properties of 5052 Aluminum Alloys with Variation of Rolling and Annealing Temperatures
압연온도 및 어닐링 온도에 따른 5052합금의 미세조직 및 기계적 성질
Ui Gu Kang, Won Jong Nam
강의구, 남원종
Korean J. Met. Mater. 2019;57(10):632-640.   Published online 2019 Sep 23
DOI: https://doi.org/10.3365/KJMM.2019.57.10.632

The microstructural evolution and corresponding mechanical properties of 5052 Al alloys with different deformation temperatures and post-deformation annealing conditions were investigated. The warmrolled alloy showed higher strength and elongation than the cold-rolled and cryo-rolled alloys. The improved strength and ductility of warm rolled alloys is attributed to the formation of..... More

                           Cited By 1
Effects of Initial Microstructures and Annealing Conditions on Mechanical Properties of Cryo-rolled Low Carbon Manganese Steels
극저온압연한 저탄소망간강의 초기 미세조직과 어닐링 조건이 기계적성질에 미치는 영향
Jong Chul Lee, Won Jong Nam
이종철, 남원종
Korean J. Met. Mater. 2018;56(8):551-560.   Published online 2018 Aug 5
DOI: https://doi.org/10.3365/KJMM.2018.56.8.551

The effect of annealing on the microstructural evolution of the matrix in low carbon manganese steels with different initial microstructures, including martensite, bainite and a mixture of ferrite and pearlite, was investigated in conjunction with the charge in mechanical properties. During annealing, steels with a deformed ferrite + pearlite microstructure..... More

Effects of Manufacturing Conditions on Tensile Fracture Behaviors in Hyper-Eutectoid Steel Wires
과공석 강선에서 공정조건이 인장파단 거동에 미치는 영향
Kang Suk An, Jung Hoon Park, Won Jong Nam
안강석, 박정훈, 남원종
Korean J. Met. Mater. 2018;56(3):187-196.   Published online 2018 Mar 6
DOI: https://doi.org/10.3365/KJMM.2018.56.3.187

This study investigated the effects of manufacturing conditions, such as patenting temperature and drawing strains, on the tensile fracture behaviors, especially on reduction of area (RA), of hyper-eutectoid steel wire. Steel wires with the chemical compositions of Fe-0.92C-1.3Si-0.6Mn-0.3Cr (wt%), were austenitized at 900 °C for 3 min and isothermally transformed..... More

The Effects of Alloying Elements, Cr, Si, and Transformation Temperature on the Microstructures and Tensile Properties of Hyper-Eutectoid Steels
과공석강에서 합금원소 Cr, Si 첨가 및 상변태 온도가 미세조직 변화와 인장성질에 미치는 영향
Jung Hoon Park, Shin Woong Jeong, Won Jong Nam
박정훈, 정신웅, 남원종
Korean J. Met. Mater. 2017;55(7):460-469.   Published online 2017 Jul 4
DOI: https://doi.org/10.3365/KJMM.2017.55.7.460

The effects of alloying elements, especially Cr and Si, and transformation temperature on the microstructures and mechanical properties of hyper-eutectoid steels were investigated. Increases in Si and Cr changed the morphology of cementite in upper bainite, while the morphology of pearlite seemed to be unchanged by the amount of alloying..... More

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