Published July 2013 | Version v1
Journal article Metadata-only

High heat loading properties of vacuum plasma spray tungsten coatings on reduced activation ferritic/martensitic steel

Creators

  • 1. Research Institute for Applied Mechanics, Kyushu University, Kasuga, Fukuoka 816-8580 (Japan)
  • 2. Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580 (Japan)
  • 3. Japan Atomic Energy Agency, Naka, Ibaraki 311-0193 (Japan)
  • 4. National Institute for Fusion Science, Oroshi-cho 322-6, Toki-city, Gifu 509-5292 (Japan)
  • 5. Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-001 (Japan)

Description

High density W coatings on reduced activation ferritic martensitic steel (RAF/M) have been produced by Vacuum Plasma Spraying technique (VPS) and heat flux experiments on them have been carried out to evaluate their possibility as a plasma-facing armor in a fusion device. In addition, quantitative analyses of temperature profile and thermal stress have been carried out using the finite element analysis (FEA) to evaluate its thermal properties. No cracks or exfoliation has been formed by steady state and cyclic heat loading experiments under heat loading at 700 °C of surface temperature. In addition, stress distribution and maximum stress between interface of VPS-W and RAF/M have been obtained by FEA. On the other hand, exfoliation has occurred at interlayer of VPS-W coatings near the interface between VPS-W and RAF/M at 1300 °C of surface temperature by cyclic heat loading

Availability note (English)

Available from http://dx.doi.org/10.1016/j.jnucmat.2013.01.196

Additional details

Identifiers

DOI
10.1016/j.jnucmat.2013.01.196;
PII
S0022-3115(13)00204-3;

Publishing Information

Journal Title
Journal of Nuclear Materials
Journal Volume
438
Journal Issue
Suppl
Journal Page Range
p. S905-S908
ISSN
0022-3115
CODEN
JNUMAM

Conference

Title
20. international conference on plasma-surface interactions in controlled fusion devices
Acronym
PSI-20
Dates
21-25 May 2012
Place
Aachen (Germany)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45069959
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
FERRITIC STEELS; FINITE ELEMENT METHOD; FIRST WALL; HEATING LOAD; MARTENSITIC STEELS; PLASMA; THERMAL STRESSES; THERMODYNAMIC PROPERTIES; THERMONUCLEAR DEVICES; TUNGSTEN
Descriptors DEC
ALLOYS; CALCULATION METHODS; CARBON ADDITIONS; ELEMENTS; IRON ALLOYS; IRON BASE ALLOYS; MATHEMATICAL SOLUTIONS; METALS; NUMERICAL SOLUTION; PHYSICAL PROPERTIES; REFRACTORY METALS; STEELS; STRESSES; THERMONUCLEAR REACTOR WALLS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.