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Title: The mechanical interaction of clad and base metal for molten salt reactor structural components

Abstract

Cladding structural components with a corrosion resistant material may greatly extend the design life of molten salt reactor concepts. A complete design methodology for such cladded, high temperature nuclear components will require addressing many issues: fabrication, corrosion resistance, metallurgical interaction, and the mechanical interaction of the clad and base materials under load. This work focuses on the final issue: the mechanical interaction of the base and clad under creep-fatigue conditions. Depending on the relative mechanical properties of the two materials the clad may substantially influence the longterm cyclic response of the structural system or its effect might be negligible. To quantify the effect of different clad material properties we develop an efficient method for simulating pressurized cladded components in the limiting case where the section of interest is far from structural discontinuities. Using this method we evaluate the mechanics of the clad/base system and identify different regimes of mechanical response. The focus is on situations relevant to high temperature nuclear components: thermal-cyclic Bree-type problems and similar axisymmetric structures. The insights gained from these structural studies will form the basis for developing design rules for high-temperature, nuclear, cladded components.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy
OSTI Identifier:
1510501
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: 2018 ASME Pressure Vessels and Piping Conference, 07/15/18 - 07/20/18, Prague, CZ
Country of Publication:
United States
Language:
English

Citation Formats

Messner, M. C., Phan, V. T., Jetter, R. I., and Sham, T. -L. The mechanical interaction of clad and base metal for molten salt reactor structural components. United States: N. p., 2019. Web. doi:10.1115/PVP2018-84101.
Messner, M. C., Phan, V. T., Jetter, R. I., & Sham, T. -L. The mechanical interaction of clad and base metal for molten salt reactor structural components. United States. doi:10.1115/PVP2018-84101.
Messner, M. C., Phan, V. T., Jetter, R. I., and Sham, T. -L. Tue . "The mechanical interaction of clad and base metal for molten salt reactor structural components". United States. doi:10.1115/PVP2018-84101.
@article{osti_1510501,
title = {The mechanical interaction of clad and base metal for molten salt reactor structural components},
author = {Messner, M. C. and Phan, V. T. and Jetter, R. I. and Sham, T. -L.},
abstractNote = {Cladding structural components with a corrosion resistant material may greatly extend the design life of molten salt reactor concepts. A complete design methodology for such cladded, high temperature nuclear components will require addressing many issues: fabrication, corrosion resistance, metallurgical interaction, and the mechanical interaction of the clad and base materials under load. This work focuses on the final issue: the mechanical interaction of the base and clad under creep-fatigue conditions. Depending on the relative mechanical properties of the two materials the clad may substantially influence the longterm cyclic response of the structural system or its effect might be negligible. To quantify the effect of different clad material properties we develop an efficient method for simulating pressurized cladded components in the limiting case where the section of interest is far from structural discontinuities. Using this method we evaluate the mechanics of the clad/base system and identify different regimes of mechanical response. The focus is on situations relevant to high temperature nuclear components: thermal-cyclic Bree-type problems and similar axisymmetric structures. The insights gained from these structural studies will form the basis for developing design rules for high-temperature, nuclear, cladded components.},
doi = {10.1115/PVP2018-84101},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}

Conference:
Other availability
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