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Comparison of Phase Evolution and Sintering Properties of Ti-10Mo Alloys Prepared using Bulk Scrap and Blended Elemental (BE) Powder
In-Hyeok Choi, Jung-Min Oh, Daeyoung Kim, Jong-Woong Kim, Hanjung Kwon
Korean J. Met. Mater. 2022;60(3):180-187.   Published online 2022 Feb 8
DOI: https://doi.org/10.3365/KJMM.2022.60.3.180

Abstract
In this study, Ti-10Mo alloy powder and sintered bodies were successfully fabricated using a threestep process of acid/organic solvent cleaning, hydrogenation/dehydrogenation (HDH) of bulk Ti-Mo scrap, and pressureless vacuum sintering of the alloy powder. This process can be used to recycle valuable Ti alloy. And unlike remelting-based recycling processes, in..... More

                   Web of Science 3  Crossref 3
Effective Method for Preparing Low-Oxygen Titanium Ingot by Combined Powder Deoxidation and Vacuum Arc Melting Processes
Jung-Min Oh, Jaeyeol Yang, Jaesik Yoon, Jae-Won Lim
Korean J. Met. Mater. 2021;59(3):149-154.   Published online 2021 Feb 19
DOI: https://doi.org/10.3365/KJMM.2021.59.3.149

Abstract
In this study, an effective method is demonstrated for fabricating titanium sputtering targets, which are used to fabricate thin films in the semiconductor industry. The method is an alternative to the existing electron beam melting (EBM) process under high vacuum. Titanium sputtering targets used in the production of semiconductors must..... More

                   Web of Science 5  Crossref 4
Effect of Ultrasonic Cleaning of Titanium Turning Scraps Immersed in Alkaline Solution and Subsequent Preparation of Ferrotitanium Ingots
Suhwan Yoo, Jikwang Chae, Jung-Min Oh, Jae-Won Lim
Korean J. Met. Mater. ;59(2):113-120.   Published online 2021 Jan 27
DOI: https://doi.org/10.3365/KJMM.2021.59.2.113

Abstract
Ti has excellent properties but is more expensive than other materials due to its high melting point, high reactivity and difficult processability. One way to lower the production cost of Ti products is to recycle Ti scraps. Before recycling Ti scraps, pretreatment to remove contamination is essential. Ti scraps can..... More

                   Web of Science 2  Crossref 3
Eco-Friendly Pretreatment of Titanium Turning Scraps and Subsequent Preparation of Ferro-Titanium Ingots
Jikwang Chae, Jung-Min Oh, Suhwan Yoo, Jae-Won Lim
Korean J. Met. Mater. 2019;57(9):569-574.   Published online 2019 Aug 21
DOI: https://doi.org/10.3365/KJMM.2019.57.9.569

Abstract
In this study, an eco-friendly pretreatment process was developed to recycle titanium turning scraps and ferro-titanium ingots with low gaseous impurities were prepared using recycled titanium turning scraps. The amount of gaseous impurities of titanium scraps before removing the machining oils on the surface was as high as 20000 ppm...... More

                   Web of Science 6  Crossref 5
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