Korean Journal of Metals and Materials

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The Influence of S Addition and Aging Heat-Treatment on the Machinability in Austenitic Lightweight Steels
S 첨가 및 시효열처리에 의한 오스테나이트계 경량철강의 절삭성 변화에 관한 연구

Chang-Uk Lee, Kyeong-Won Kim, Chang-Hoon Lee, Hyungkwon Park, Seong-Jun Park
이창욱, 김경원, 이창훈, 박형권, 박성준

Korean J. Met. Mater. 2025;63(2):109-120. Published online 2025 Feb 5
DOI: https://doi.org/10.3365/KJMM.2025.63.2.109

Abstract
Machining processes are crucial in industrial applications for shaping steel into specific structural products, and represent a significant portion of the product cost. However, the machinability of lightweight steel is poor, and it exhibits the characteristics of difficult-to-machine materials. This study investigated the effect of adding sulfur on the machinability..... More

Corrosion & Surface Treatment

Fabrication of Decorative Coating/Patterning of Ceramic Pigment Powder Using Vacuum Kinetic Spraying Process
진공상온분사 공정을 이용한 세라믹 도료 분말의 장식용 코팅 및 패터닝 제조

Hyungkwon Park, Jinyoung Kim, Hansol Kwon, Seongtae Lee, Changhee Lee
박형권, 김진영, 권한솔, 이승태, 이창희

Korean J. Met. Mater. 2016;54(8):552-558. Published online 2016 Aug 5
DOI: https://doi.org/10.3365/KJMM.2016.54.8.552

Abstract
Vacuum kinetic spraying (VKS) is a relatively advanced process, by which a dense film can be fabricated at room temperature. Various materials including ceramic, metal, polymer and composite can be used as the substrate and coating materials. In this research, red and blue color films were successfully fabricated on glass..... More

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