벌크 비정질 Ti 47 Cu 38 Zr 7.5 Fe 2.5 Sn 2 Si 1 Ag 2 소재를 이용한 수술용 스칼펠 (Scalpel) 제작의 최적화 조건분석

• Published in: 대한금속재료학회지 Vol. 63; no. 2; pp. 95 - 101
• Main Authors: 박지니, J. N. Park, 오정석, J. S. Oh, 이상엽, S. Lee, 정중희, C. H. Chung, 신동균, D. Shin, 박준식, J. S. Park
• Format: Journal Article
• Language: Korean
• Published: 대한금속재료학회 05.02.2025
• Subjects: Bulk metallic glass; Fabrication method; Scalpel; Shape optimization; XRD
• ISSN: 1738-8228

This study investigated the manufacturing conditions and properties of Ti 47 Cu 38 Zr 7.5 Fe 2.5 Sn 2 Si 1 Ag 2 amorphous bulk metallic glass (BMG) to examine its applicability for scalpels for medical use. Ti-base BMG alloys have excellent mechanical properties and biocompatibility, making them a suitable scalpel material. In this study, a vacuum suction casting method was used to manufacture a BMG alloy scalpel. After examining various manufacturing conditions, to successfully suppress the occurrence of pores and manufacture a BMG with excellent shape the optimal conditions were determined to be 236 A of arc current, 20 s of melting time, 2 s of suction time, 10°C of coolant temperature, and -0.1 MPa of suction pressure. XRD analysis confirmed that the Ti-base BMG had a completely amorphous structure. Vickers hardness measurements showed that the Ti 47 Cu 38 Zr 7.5 Fe 2.5 Sn 2 Si 1 Ag 2 amorphous bulk metal material (BMG) scalpel had a hardness of 781 Hv, and was superior to a commercial stainless steel (SUS) scalpel in terms of durability. In the pork skin cutting tests, the Ti-base BMG scalpel maintained its edge without chipping, while the SUS scalpel showed chipping and an uneven cutting surface. These research results suggest that Ti-based BMG can provide better high-strength performance and durability than commercial SUS scalpels, and demonstrate its potential for application as a medical tool. However, bulk amorphous alloys with excellent glass formability (GFA) still require a detailed study of the optimal fabrication conditions to avoid pores and defects. (Received 18 November, 2024; Accepted 2 December, 2024)