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Ultraviolet Light-Responsive Photorheological Fluid for Sensors and Actuators Realized by Phosphorescence Effects and LSTM RNN
Min Young Cho, Suman Timilsina, Jong Wook Roh, Walter Commerell, Ho Geun Shin, Yong-Nam Kwon, Ji Sik Kim
Korean J. Met. Mater. 2021;59(5):346-353.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.346

A photo-rheological fluid (PRF) is a smart fluid which exhibits different viscosity under UV irradiation. A PRF is comprehensively presented in this work, with particular focus on its responses under UV off/on conditions. The isomeric conversion from SP to MC and vice versa under UV off and on, respectively, showed..... More

Effect of Hot Forging and Heat Treatment on the Microstructure and Mechanical Properties of Cr Steel
Cr강의 미세조직과 파괴인성에 미치는 열간단조 및 열처리 공정의 영향
Dong Jun Lee, Yong-Nam kwon, Min Suk Kim, Ga Eun Ku, Sang Hyun Heo, Nam Yong Kim, Jin-Mo Lee
이동준, 권용남, 김민석, 구가은, 허상현, 김남용, 이진모
Korean J. Met. Mater. 2018;56(3):221-226.   Published online 2018 Mar 6
DOI: https://doi.org/10.3365/KJMM.2018.56.3.221

In this study, the effects of hot forging and heat treatment (quenching and tempering) of cast Cr alloy steel on the microstructures and mechanical properties were investigated. The hot forging was performed at a compressive ratio 0.5 at 1,250 oC. The heat treatment process was quenching (860 oC for 2..... More

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