Zn-Al-Mg 합금의 압출 시 미세조직 변화에 관한 연구

서위걸; Khushahal Thool; 이희남; 양동주; 박순균; 최시훈

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자료유형: 학술저널

저자정보: 서위걸 (국립 순천대학교) Khushahal Thool (국립 순천대학교) 이희남 (국립 순천대학교) 양동주 (하나스틸) 박순균 (비피시) 최시훈 (국립 순천대학교)

저널정보: 한국소성·가공학회 소성·가공 소성가공 제32권 제6호(통권 제208호)

발행연도: 2023.12

수록면: 344 - 351 (8page)

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이 논문의 연구 히스토리 (2)

2023

Zn-Al-Mg 합금의 압출 시 미세조직 변화에 관한 연구

서위걸 , Khushahal Thool , 이희남 외 3명 소성·가공 2023.12 학술저널

Zn-Al-Mg 합금의 압출 공정 시 미세조직 변화에 대한 연구

서위걸 , 양동주 , 최시훈 한국소성가공학회 학술대회 논문집 2023.05 학술대회자료

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The use of Zn-Al-Mg alloy coatings for enhancing the corrosion resistance of steel sheets is gaining prominence over traditional Zn coatings. There is a growing demand for the development of thermal spray wires made from Zn-Al-Mg alloys, as a replacement for the existing wires produced using Al and Zn. This is particularly crucial to secure corrosion resistance and durability in the damaged areas of coated steel sheets caused by deformation and welding. This study focuses on the casting and extrusion processes of Zn-2Al-1Mg alloy for the fabrication of such spray wires and analyzes the changes in microstructure during the extrusion process. The Zn-2Al-1Mg alloy, cast in molds, was subjected to a heat treatment at 250 °C for 3 hours prior to extrusion. The extrusion process was carried out by heating both the material and the mold up to 300 °C. Microstructural analysis was conducted using FE-SEM and EDS to differentiate each phase. The mechanical properties of the cast specimen were evaluated through compression tests at temperatures ranging from 200 to 300 °C, with strain rates of 0.1 to 5 sec-1. Vickers hardness testing was utilized to assess the inhomogeneity of mechanical properties in the radial direction of the extruded material. Finite Element Analysis (FEA) was employed to understand the inhomogeneity in stress and strain distribution during extrusion, which aids in understanding the impact of heterogeneous deformation on the microstructure during the process.

#Zn-Al-Mg #Casting #Extrusion #Microstructure #FEM

참고문헌 (22)

참고문헌 신청

Y. Guo, J. Guan, H. Peng, X. Shu, L. Chen, H. Guo, 2019, Tightly Adhered Silk Fibroin Coating of Ti6Al4V Biometals for Improved Wettability and Compatible Mechanical Properties, Mater. Des., Vol. 175, No. 5, pp. 107825, https://doi.org/10.1016/j.matdes.20

Y. L. Song, N. Yu, Danny, B. P. Tan, M. T. Chew, 2022, A Pilot Study on Three-Dimensional Printing of Stainless Steel Arch Bars for Orthognathic Segmental Jaw Surgeries, Ann. 3D Print. Med., Vol. 6, pp. 100055, https://doi.org/10.1016/j.stlm.2022.100055

J. Degner, F. Singer, L. Cordero, A. R. Baccaccini, S. Virtanen, 2013, Electrochemical Investigations of Magnesium in DMEM with Biodegradable Polycaprolactone Coating as Corrosion Barrier, Appl. Surf. Sci., Vol. 282, No. 1, pp. 264-270, https://doi.org/10

S. Heise, M. Hohlinger, Y. T. Hernadez, J. J. P. Palacio, J. A. R. Ortiz, V. Wagener, S. Virtamen, A. R. Boccaccini, 2017, Electrophoretic Deposition and Characterization of Chitosan/Bioactive Glass Composite Coatings on Mg Alloy Substrates, Electrochim.

Y. F. Zheng, X. N. Gu, F. Witte, 2014, Biodegradable Metals, Mater. Sci. Eng. R, Vol. 77, pp. 1-34, https://doi.org/10.1016/j.mser.2014.01.001

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