RF 플라즈마를 이용한 순수 바나늄 분말의 구상화 거동 연구
Spheroidization of Pure-vanadium Powder using Radio Frequency Thermal Plasma Process
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In the present work, spheroidization of angular vanadium powders using a radio frequency (RF) thermal plasma process is investigated. Initially, angular vanadium powders are spheroidized successfully at an average particle size of 100 μm using the RF-plasma process. It is difficult to avoid oxide layer formation on the surface of vanadium powder during the RF-plasma process. Titanium/vanadium/stainless steel functionally graded materials are manufactured with vanadium as the interlayer. Vanadium intermediate layers are deposited using both angular and spheroidized vanadium powders. Then, 17-4PH stainless steel is successfully deposited on the vanadium interlayer made from the angular powder. However, on the surface of the vanadium interlayer made from the spheroidized powder, delamination of 17-4PH occurs during deposition. The main cause of this phenomenon is presumed to be the high thickness of the vanadium interlayer and the relatively high level of surface oxidation of the interlayer.
Abstract
In the present work, spheroidization of angular vanadium powders using a radio frequency (RF) thermal plasma process is investigated. Initially, angular vanadium powders are spheroidized successfully at an average particle size of 100 μm using the RF-plasma process. It is difficult to avoid oxide layer formation on the surface of vanadium powder during the RF-plasma process. Titanium/vanadium/stainless steel functionally graded materials are manufactured with vanadium as the interlayer. Vanadium intermediate layers are deposited using both angular and spheroidized vanadium powders. Then, 17-4PH stainless steel is successfully deposited on the vanadium interlayer made from the angular powder. However, on the surface of the vanadium interlayer made from the spheroidized powder, delamination of 17-4PH occurs during deposition. The main cause of this phenomenon is presumed to be the high thickness of the vanadium interlayer and the relatively high level of surface oxidation of the interlayer.
참고문헌 (11)
- 백성은, "Direct energy deposition 공정으로 제조된 SUS630 스테인리스강 적층조형체의 경도 및 미세조직 연구", 한국분말재료학회지, 25(3), pp.220~225 (2018), 한국분말재료학회[DOI]
- 어광준, "Stability of Y-Ti-O Nanoparticles During Laser Deposition of Oxide Dispersion Strengthened Steel Powder", Metals and Materials International, 23(6), pp.1063~1074 (2017), 대한금속·재료학회[DOI]
- Barton Mensah Arkhurst, "Direct Laser Deposition of 14Cr Oxide Dispersion Strengthened Steel Powders Using Y2O3 and HfO2 Dispersoids", 대한금속·재료학회지, 55(8), pp.550~558 (2017), 대한금속·재료학회[DOI]
- 박태성, "순수 타이타늄 기반 산화물분산강화 합금의 미세조직및 기계적 특성", 한국분말재료학회지, 25(4), pp.327~330 (2018), 한국분말재료학회[DOI]
- N. K. Adomako, , Mater. Sci. Eng., A, 732, pp.378~ (2018)
- J. B. Seol, , Acta Mater, 153, pp.71~ (2018)
- N. K. Adomako, , Mater. Sci. Eng., A, 753, pp.208~ (2019)
- N. K. Adomako, , Mater. Res. Lett, 7, pp.259~ (2019)
- Barton Mensah Arkhurst, "Evolution of Microstructure and Mechanical Properties of Oxide Dispersion Strengthened Steels Made from Water-Atomized Ferritic Powder", Metals and Materials International, 24(3), pp.464~480 (2018), 대한금속·재료학회[DOI]
- 곽지나, "플라즈마 공정으로 구상화된 티타늄 분말과 금속사출성형공정을 이용한 치과용 부품 제조", 한국분말재료학회지, 20(6), pp.467~473 (2013), 한국분말재료학회
- S. K. Everton, , Mater. Des, 95, pp.431~ (2016)