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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

Abstract
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

                        
Effect of Annealing Temperature on the Shape Memory Properties of Ti-44.5Ni-5Cu and Ti-45.2Ni-5Cu(at%) Alloys
Ti-44.5Ni-5Cu 및 Ti-45.2Ni-5Cu(at%) 합금의 형상기억특성에 미치는 어닐링온도의 영향
Jae Il Kim, Kwang Sun Hwang
김재일, 황광선
Korean J. Met. Mater. 2019;57(9):562-568.   Published online 2019 Aug 21
DOI: https://doi.org/10.3365/KJMM.2019.57.9.562

Abstract
The effect of annealing temperature on shape memory properties in the Ti-44.5Ni-5Cu and Ti-45.2Ni-5Cu(at%) alloys was investigated by differential scanning calorimeter (DSC) and tensile testing. The martensitic transformation temperature of Ti-44.5Ni-5Cu(at%) increased from 308K to 324K with increasing annealing temperature and did not change with further increasing annealing temperature. This..... More

                        
Effects of Rapid Thermal Annealing on the Structural, Optical, and Electrical Properties of ZnO/Ag/SnO<sub>2</sub> Tri-Layer Films
Su-Hyeon Choe, Yu-Sung Kim, Jin-Young Choi, Yun-Je Park, Byung-Chul Cha, Young-Min Kong, Daeil Kim
Korean J. Met. Mater. 2019;57(8):506-509.   Published online 2019 Aug 5
DOI: https://doi.org/10.3365/KJMM.2019.57.8.506

Abstract
ZnO 50 nm/Ag 10 nm/SnO2 50 nm (ZAS) tri-layer films were deposited on a glass substrate by RF and DC magnetron sputtering and then underwent rapid thermal annealing in a low vacuum of 1×10-3 Torr to investigate the effects of post-deposition annealing on the optical and electrical properties of the..... More

                        
Effect of Rapid Thermal Annealing Temperature on Oxygen-Deficient TiO<sub>2-x</sub>-based Thin-Film Transistors Deposited by RF Magnetron Sputtering
RF 마그네트론 스퍼터링으로 증착한 산소 결핍 구조 TiO2-x 박막 트랜지스터에 미치는 급속 열처리 온도의 영향
Han-Sang Kim, Jae-Yun Lee, Sung-Jin Kim
김한상, 이재윤, 김성진
Korean J. Met. Mater. 2019;57(7):438-446.   Published online 2019 Jun 5
DOI: https://doi.org/10.3365/KJMM.2019.57.7.438

Abstract
We investigated the effect of rapid thermal annealing (RTA) temperature report on oxygendeficient rutile TiO2-x thin-film transistors deposited by RF magnetron sputtering. Amorphous TFTs that use TiO2-x semiconductors as an active layer can be fabricated by low-temperature process and show remarkable electrical performance. The RTA post-annealing process provides greater production..... More

                        
Effect of Shear Deformation During Drawing on Inhomogeneous Microstructures and Textures in High Purity Copper Wires After Annealing
고순도 구리 선재의 어닐링 후 불균질 미세조직과 집합조직에 미치는 신선 시 전단 변형의 영향
Hyun Park, Sang-Hyeok Kim, Se-Jong Kim, Hyo-Jong Lee
박현, 김상혁, 김세종, 이효종
Korean J. Met. Mater. 2018;56(12):861-869.   Published online 2018 Dec 5
DOI: https://doi.org/10.3365/KJMM.2018.56.12.861

Abstract
To determine the origin of the inhomogeneous microstructure and texture observed in drawn and annealed high purity copper wires, two kinds of drawing process conditions and their influence was investigated. The regular condition, based on a symmetric die, and a condition designed intentionally to produce an inhomogeneous shear deformation using..... More

                        
Effect of Microstructural Factors on Fatigue and Fatigue Crack Propagation Behaviors of Mill-Annealed Ti-6Al-4V Alloy
미세조직적 인자가 밀소둔된 Ti-6Al-4V 합금의 피로 및 피로균열전파 거동에 미치는 영향
Sanghoo Park, Sumin Kim, Daeun Lee, Soojin Ahn, Sangshik Kim
박상후, 김수민, 이다은, 안수진, 김상식
Korean J. Met. Mater. 2018;56(12):845-853.   Published online 2018 Dec 5
DOI: https://doi.org/10.3365/KJMM.2018.56.12.845

Abstract
To understand the effect of microstructural factors (i.e., the size of α phase, equiaxed vs bimodal structure) on high cycle fatigue (HCF) and fatigue crack propagation (FCP) behaviors of mill-annealed Ti-6Al- 4V (Ti64) alloy, three specimens of EQ (equiaxed)–8 (8 indicates the size of α grain), BM (bimodal)-8, and BM-..... More

                           Cited By 2
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

Abstract
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 Dispersion Solvent on the Spray Coating Deposition of Silver Nanowires
스프레이 코팅법으로 증착된 은나노선의 특성에 미치는 분산용매의 영향
Ji-Hye Choe, A-Yeon Jang, Jeong-Heui Kim, Choong-Heui Chung, Ki-Ha Hong
최지혜, 장아연, 김정희, 정중희, 홍기하
Korean J. Met. Mater. 2017;55(7):509-514.   Published online 2017 Jul 4
DOI: https://doi.org/10.3365/KJMM.2017.55.7.509

Abstract
Silver nanowire (AgNWs) networks offer a promising approach for producing cost effective transparent electrode materials. However, high temperature annealing is necessary to achieve low sheet resistance, which limits the use of AgNWs for low temperature processing applications such as flexible electronics, and perovskites solar cell fabrication. This study shows that..... More

         Cited By 1
Properties of the Catalytic Nickel Silicides for a Dye-Sensitized Solar Cell
염료감응형 태양전지용 니켈실리사이드 촉매재료의 물성 연구
Taeyeul Park, Kwangbae Kim, Ohsung Song
박태열, 김광배, 송오성
Korean J. Met. Mater. 2017;55(6):440-445.   Published online 2017 Jun 1
DOI: https://doi.org/10.3365/KJMM.2017.55.6.440

Abstract
We have investigated the properties of nickel silicides as catalysts for dye-sensitized solar cells (DSSCs) by preparing several nickel silicide layers with a 100 nm-Ni/Si (100) structure using silicidation annealing for 30 minutes at 300 ℃ – 900 ℃. X-ray diffraction (XRD), four-point probe, field emission scanning electron microscope (FE-SEM),..... More

         Cited By 1
Effect of Annealing Temperature on the Microstructure, Tensile Properties, and Fracture Behavior of Cold-Rolled High-Mn Light-Weight Steels
고망간 경량철강 냉연판재의 미세조직, 인장특성 및 파괴거동에 미치는 어닐링 온도의 영향
Jae-hyun Lee, Seong-Jun Park, Joonoh Moon, Jun-Yun Kang, Jun-Young Park, Tae-Ho Lee, Kyung Mox Cho
이재현, 박성준, 문준오, 강전연, 박준영, 이태호, 조경목
Korean J. Met. Mater. 2017;55(5):363-371.   Published online 2017 May 9
DOI: https://doi.org/10.3365/KJMM.2017.55.5.363
Abstract
The effects of the annealing temperature on the microstructure and tensile properties of cold-rolled light-weight steels are investigated using two Fe-30Mn-xAl-0.9C alloys that contain different Al content. The initial alloy microstructure is composed of a single austenite or a mixture of austenite and ferrite depending on the nominal aluminum content.... More
         Cited By 6
The Effect of Al and V on Microstructure and Transformation of Phase during Solution Treatments of Cast Ti-6Al-4V Alloy
Seong-Tak Oh, Kee-Do Woo, Jae-Hwang Kim, Seung-Mi Kwak
Korean J. Met. Mater. 2017;55(3):150-155.   Published online 2017 Mar 3
DOI: https://doi.org/10.3365/KJMM.2017.55.3.150

Abstract
In this study, the effect of α and β those stabilizers on the microstructure and phase transformation of cast Ti-6wt%Al-4wt%V alloy at various solution treatment temperatures was investigated. The dependence of the transformation behavior of the β phase during the solution treatment and its dependence was determined by the partitioning..... More

      
Optical Devices & Energy Materials
Properties of a Counter Electrode with Cobalt Silicides in a Dye Sensitized Solar Cell
코발트실리사이드 상대전극을 채용한 염료감응형 태양전지의 물성 연구
Yunyoung Noh, Kwangbae Kim, Ohsung Song
노윤영, 김광배, 송오성
Korean J. Met. Mater. 2017;55(1):39-45.   Published online 2017 Jan 5
DOI: https://doi.org/10.3365/KJMM.2017.55.1.39

Abstract
Cobalt silicide was used as a counter electrode to replace the Pt catalytic layer of a dye-sensitized solar cell (DSSC) device. 100 nm Si/ 100 nm Co on quartz was formed by sputtering and cobalt-silicides were formed by vacuum heat treatment at 500 ℃ and 700 ℃ for 30 min,..... More

      
Properties of a Counter Electrode with Nickel Silicides in a Dye Sensitized Solar Cell
니켈실리사이드 상대전극을 이용한 염료감응형 태양전지의 물성 연구
Kwangbae Kim, Yunyoung Noh, Minkyoung Choi, Ohsung Song
김광배, 노윤영, 최민경, 송오성
Korean J. Met. Mater. 2016;54(8):615-620.   Published online 2016 Aug 5
DOI: https://doi.org/10.3365/KJMM.2016.54.8.615

Abstract
Nickel silicide was used as a counter electrode to replace the Pt catalytic layer of a dye-sensitized solar cell (DSSC) device. 50 nm Si/ 50 nm Ni was formed on glass or quartz by sputtering, and nickel silicides were formed by vacuum heat treatments at 450 and 800 ℃ for..... More

         Cited By 1
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