Journal of Technologic Dentistry (대한치과기공학회지)
- Volume 31 Issue 4
- /
- Pages.31-36
- /
- 2009
- /
- 1229-3954(pISSN)
- /
- 2288-5218(eISSN)
Grindability of Ti-Xwt%Cu Alloys for Dental Applications
치과용 Ti-Xwt%Cu 합금의 연삭성
- Ahn, Jae-Seok (Dept. of Dental Lab. Korea University Ansan Hospital)
- 안재석 (고려대학교 안산병원)
- Received : 2009.10.30
- Published : 2009.12.30
Abstract
This study evaluated the grindability of series of Ti-Cu alloys in order to develop a Ti alloy with better grindability than commercially pure titanium(CP Ti). Experimental Ti-Xwt%Cu alloys(X=2, 5, 10) were made in an argon-arc melting furnace. Slabs of experimental alloys were ground using a SiC abrasive wheel on an electric handpiece at circumferential speed(15000, 30000rpm) by applying a force(250, 300gr). Grindability was evaluated by measuring the amount of metal volume removed after grinding for 2 minutes. Data were compared to those for CP Ti and Ti-6wt%Al-4wt%V alloy. From results, It was observed that the grindability of Ti-Cu alloys increased with an increase in the Cu concentration compared to CP Ti, particularly the 10wt%Cu alloy exhibited the highest grindability at all speeds. By alloying with Cu, the Ti exhibited better grindability at high speed. The continuous precipitation of
Keywords
- Ti-Cu alloys;
- Grindability;
- commercially pure titanium(CP Ti);
- Ti-6wt%Al-4wt%V alloy;
- Precipitation of $Ti_2Cu$;
- The ${\alpha}$-matrix grains