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Vol.63, No.2, 95 ~ 102, 2025
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| Title |
| Analysis for Fabrication Conditions of Scalpel with Ti47Cu38Zr7.5Fe2.5Sn2Si1Ag2 Bulk Metallic Glass Alloys |
| 박지니 J. N. Park , 오정석 J. S. Oh , 이상엽 S. Lee , 정중희 C. H. Chung , 신동균 D. Shin , 박준식 J. S. Park |
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| Abstract |
| This study investigated the manufacturing conditions and properties of Ti47Cu38Zr7.5Fe2.5Sn2Si1Ag2 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 Ti47Cu38Zr7.5Fe2.5Sn2Si1Ag2 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) |
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| Key Words |
| Bulk metallic glass, Scalpel, Fabrication method, Shape optimization, XRD |
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