논문 국내 국제전문학술지(SCI급) RF 플라즈마를 이용한 순수 바나늄 분말의 구상화 거동 연구
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2019-08
- 저자명 김정한,Nana Kwabena Adomako,양승민,이민규,N. S. Reddy
- 학술지명 한국분말야금학회지
- 발행처명 한국분말야금학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 5
홈페이지논문 초록 (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.