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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.6
- 수록면
- 29 - 35 (7page)
- DOI
- 10.9726/kspse.2020.24.3.029
이용수
초록· 키워드
오류제보하기
The monolithic tungsten materials were fabricated by a hot pressed sintering process using a chromium powder as an additive material in this study. Especially, mechanical properties of tungsten materials including the flexural strength and hardness were evaluated due to the sintering temperature and the effect of additive amount. SEM was also used to analyze the microstructural characteristics of the sintered tungsten material. It was found that both sintered density and flexural strength of tungsten materials increased with the increase in sintered temperature and additive Cr amount, accompanying to the grain growth in the microstructure. The relationship between microstructure and mechanical properties of flexural strength is discussed for producing the optimal fabricating condition of tungsten materials. The bending strength and Vickers hardness of tungsten sintered material increased with increasing sintering temperature. The bending strength of the tungsten sintered material was about 580 MPa and the Vickers hardness was about 470 Hʋ when 7 wt% of chromium powder was added at sintering temperature of 1,600℃. At the sintering temperature of 1,600℃, the sintering density of tungsten sintered material increased with promotion of microstructure densification as the content of chromium added to tungsten powder increased. In particular, it showed excellent sintered density of about 17.04 g/㎤ at a chromium content of 7 wt%.
목차
Abstract
1. 서론
2. 실험방법
3. 실험 및 해석 결과
4. 결론
References
참고문헌 (12)
참고문헌 신청
M. M. Nakamura / 2018 / Modeling of Chemical Reactions of Beryllium/beryllide Pebbles with Steam for Hydrogen Safety Design of Water-Cooled DEMO / Fusion Engineering and Design 136:1484~1488
C. R. Jones / 2019 / The Social Acceptance of Fusion : Critically Examining Public Perceptions of Uranium-based Fuel Storage for Nuclear Fusion in Europe / Energy Research & Social Science 52:192~203
D. G. Liu / 2018 / An Overview of Oxidation-Resistant Tungsten Alloys for Nuclear Fusion / J. of Alloys and Compounds 765:299~312
M. Rieth / 2013 / Recent progress in research on tungsten materials for nuclear fusion applications in Europe / J. of Nuclear materials 432:482~500
Jef Ongena / 2016 / Nuclear fusion: Status report and future prospects / Energy Policy 96:770~778
C. R. Jones / 2019 / The Social Acceptance of Fusion : Critically Examining Public Perceptions of Uranium-based Fuel Storage for Nuclear Fusion in Europe / Energy Research & Social Science 52:192~203
D. G. Liu / 2018 / An Overview of Oxidation-Resistant Tungsten Alloys for Nuclear Fusion / J. of Alloys and Compounds 765:299~312
M. Rieth / 2013 / Recent progress in research on tungsten materials for nuclear fusion applications in Europe / J. of Nuclear materials 432:482~500
Jef Ongena / 2016 / Nuclear fusion: Status report and future prospects / Energy Policy 96:770~778
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UCI(KEPA) : I410-ECN-0101-2020-550-000854767