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Effects of Heat Treatment Condition and Counter Materials on the Wear Behavior of Laser Direct Energy Deposited Fe-8Cr-3V-2Mo-2W Alloy
레이저 직접적층법으로 제조된 Fe-8Cr-3V-2Mo-2W합금의 마모특성에 미치는 열처리공정 및 상대재의 영향
Kyeongsik Ha, Young Keun Park, Taehwan Kim, Gyeong Yun Baek, Jong Bae Jeon, Do-sik Shim, Young Hoon Moon, Wookjin Lee
하경식, 박영근, 김태환, 백경윤, 전종배, 심도식, 문영훈, 이욱진
Korean J. Met. Mater. 2020;58(10):680-692.   Published online 2020 Oct 5
DOI: https://doi.org/10.3365/KJMM.2020.58.10.680

Abstract
This study aimed to investigate the wear performance of laser direct energy deposited Fe-8Cr3V-2Mo-2W alloy under various wear environments, in terms of different heat treatment conditions. Ball on disk tribology tests were performed using high-carbon steel and zirconia balls as counter materials. The wear rates of the alloy depended significantly..... More

                        
Prediction of Electropulse-Induced Nonlinear Temperature Variation of Mg Alloy Based on Machine Learning
기계 학습을 활용한 마그네슘 합금의 통전 비선형 온도 예측
Jinyeong Yu, Myoungjae Lee, Young Hoon Moon, Yoojeong Noh, Taekyung Lee
유진영, 이명재, 문영훈, 노유정, 이태경
Korean J. Met. Mater. 2020;58(6):413-422.   Published online 2020 May 19
DOI: https://doi.org/10.3365/KJMM.2020.58.6.413

Abstract
Electropulse-induced heating has attracted attention due to its high energy efficiency. However, the process gives rise to a nonlinear temperature variation, which is difficult to predict using a traditional physics model. As an alternative, this study employed machine-learning technology to predict such temperature variation for the first time. Mg alloy..... More

                        
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