Published January 2009 | Version v1
Report Metadata-only

Material properties of tungsten coated F82H ferritic/martensitic steel as plasma facing armor

Creators

  • 1. Kyushu Univ., Interdisciplinary Graduate School of Engineering Sciences, Kasuga, Fukuoka (Japan)
  • 2. Kyushu Univ., Research Inst. for Applied Mechanics, Kasuga, Fukuoka (Japan)
  • 3. Forschungszentrum Juelich, Juelich (Germany)
  • 4. National Inst. for Fusion Science, Toki, Gifu (Japan)
  • 5. Japan Atomic Energy Agency, Fusion Research and Development Directorate, Naka, Ibaraki (Japan)

Description

Two types of plasma spray tungsten coatings on ferritic/martensitic steel F82H made by vacuum plasma spray technique (VPS) and air plasma spray technique (APS) were examined in this study to evaluate the possibility as plasma-facing armor. The VPS-W/F82H showed superior properties. The porosity of the VPS-W coatings was about 1% and most of the pores were smaller than 1-2 μm and joining of W/F82H and W/W was fairly good. Thermal load tests indicated high potential of this coating as plasma-facing armor under thermal loading. In case of APS-W/F82H, however, porosity was 6% and thermal load properties were much worse than VPS-W/F82H. It is likely that surface oxidation during plasma spray process reduced joining properties. (author)

Part of:
Proceedings of JSPS-CAS core university program seminar on PWI/PFC and fusion technologies

Additional details

Publishing Information

Imprint Title
Proceedings of JSPS-CAS core university program seminar on PWI/PFC and fusion technologies
Imprint Pagination
165 p.
Journal Page Range
p. 32-37
Report number
NIFS-PROC--76

Conference

Title
JSPS-CAS core university program seminar on PWI/PFC and fusion technologies
Dates
27-29 Oct 2008
Place
Huangshan (China)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
42018942
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
DIVERTORS; D-T REACTORS; FERRITIC STEELS; FIRST WALL; HEAT FLUX; MARTENSITIC STEELS; MICROSTRUCTURE; PLASMA ARC SPRAYING; SCANNING ELECTRON MICROSCOPY; THERMAL TESTING; THERMODYNAMIC PROPERTIES; TOKAMAK DEVICES; TRANSMISSION ELECTRON MICROSCOPY; TUNGSTEN; VACUUM COATING
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CLOSED PLASMA DEVICES; DEPOSITION; ELECTRON MICROSCOPY; ELEMENTS; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS TESTING; METALS; MICROSCOPY; NONDESTRUCTIVE TESTING; PHYSICAL PROPERTIES; REFRACTORY METALS; SPRAY COATING; STEELS; SURFACE COATING; TESTING; THERMONUCLEAR DEVICES; THERMONUCLEAR REACTOR WALLS; THERMONUCLEAR REACTORS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS

Optional Information

Notes
14 refs., 6 figs.