HIGH-TEMPERATURE STEAM OXIDATION KINETICS AND MECHANISM OF SCWR FUEL CLADDING CANDIDATE MATERIALS

被引：0

作者：

Abe, Hiroshi ^{[1
]}

Hong, Seung Mo ^{[1
]}

Watanabe, Yutaka ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan

来源：

PROCEEDINGS OF THE 21ST INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING - 2013, VOL 1 | 2014年

关键词：

WATER-VAPOR; ALLOYS; BEHAVIOR; STEEL;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Effects of temperature, dissolved oxygen (DO), and degree of cold work (CW) on the oxidation kinetics of supercritical-water-cooled reactor (SCWR) fuel cladding candidate materials, including three types of 15Cr-20Ni austenitic stainless steels (1520 SSs), in superheated steam have been investigated assuming power-law kinetics. Characteristics of oxide layers and its relation to oxidation behaviors are also discussed. The effect of DO on the weight .gain behavior in superheated steam at 700 degrees C was minor for all specimens at least up to 200 ppb DO. The tube-shaped specimens of 1520 SSs showed very good oxidation resistance at 700-780 degrees C. There was no clear difference in the oxidation kinetics among the three investigated types of 1520 SSs. The degree of CW is a significant parameter to mitigate oxidation in superheated steam. It has been suggested that the tube specimens showed a very slow oxidation kinetics since Cr diffusion in the outside surface of the tubes is accelerated as a result of an increase of dislocation density and/or grain refinement by a high degree of CW.

引用

页数：6

共 16 条

[1] Materials challenges for Generation IV nuclear energy systems
Allen, T. R.
Sridharan, K.
Tan, L.
Windes, W. E.
Cole, J. I.
Crawford, D. C.
Was, Gary S.
[J]. NUCLEAR TECHNOLOGY, 2008, 162 (03) : 342 - 357
[2] [Anonymous], 2002, A Technology Roadmap for Generation IV Nuclear Energy Systems
[3] [Anonymous], 2000, P 1 INT S SUP WAT CO
[4] Ebrahimifar H, 2011, INDIAN J ENG MATER S, V18, P314
[5] Protective and non-protective scale formation of NiCr alloys in water vapour containing high- and low-pO2 gases
Essuman, E.
Meier, G. H.
Zurek, J.
Haensel, M.
Norby, T.
Singheiser, L.
Quadakkers, W. J.
[J]. CORROSION SCIENCE, 2008, 50 (06) : 1753 - 1760
[6] Leistikow S., 1987, MATER CORROS, V38, P556, DOI DOI 10.1002/MACO.19870381003
[7] General corrosion properties of modified PNC1520 austenitic stainless steel in supercritical water as a fuel cladding candidate material for supercritical water reactor
Nakazono, Y.
Iwai, T.
Abe, H.
[J]. INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, JOINT AIRAPT-22 AND HPCJ-50, 2010, 215
[8] Oka Y., 2011, 5 INT S SUP WAT COOL
[9] Effects of water vapour on isothermal oxidation of chromia-forming alloys in Ar/O2 and Ar/H2 atmospheres
Othman, N. K.
Othman, N.
Zhang, J.
Young, D. J.
[J]. CORROSION SCIENCE, 2009, 51 (12) : 3039 - 3049
[10] INTERNAL EXTERNAL TRANSITION FOR THE OXIDATION OF FE-CR-NI AUSTENITIC STAINLESS-STEELS IN STEAM
OTSUKA, N
SHIDA, Y
FUJIKAWA, H
[J]. OXIDATION OF METALS, 1989, 32 (1-2): : 13 - 45

← 1 2 →