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Effect of Silica Nanoparticle Dispersion on Flexural Strength of Sand Mold with Sodium Silicate Binder
실리카 나노입자의 분산도가 주형의 항절강도에 미치는 영향
Panseong Kim, Min A Bae, Jae Ho Baek, Jung Ho Jae, Man Sig Lee
김판성, 배민아, 백재호, 제정호, 이만식
Korean J. Met. Mater. 2022;60(6):478-487.   Published online 2022 May 24
DOI: https://doi.org/10.3365/KJMM.2022.60.6.478

Abstract
Sodium silicate solutions are used as an eco-friendly binder in the casting process. However, the strength of sand molds using the sodium silicate solutions is reduced because of their low humidity resistance. In this study, silica nanoparticles were added to a sodium silicate solution with a constant SiO2/Na2O ratio to..... More

                        
Effect of Dissolution of 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         Cited By 2
Influences of Heat Treatment on the Thermal Diffusivity and Corrosion Characterization of Al-Mg-Si alloy
Al-Mg-Si 합금에서 열처리가 열확산도와 부식특성에 미치는 영향
Yu-Mi Kim, Se-Weon Choi, Young-Chan Kim, Chang-Seog Kang
김유미, 최세원, 김영찬, 강창석
Korean J. Met. Mater. 2021;59(8):582-588.   Published online 2021 Jul 5
DOI: https://doi.org/10.3365/KJMM.2021.59.8.582

Abstract
The effect of the heat treatment on the Mg2Si phase in Al-Mg-Si alloy was investigated by a laser flash apparatus (LFA), Differential scanning calorimetry (DSC) and corrosion test. The alloy samples were solution treated at 590 oC for a half hour followed by warm water quenching, and then aged in..... More

                        
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