In situ corrosion studies on candidate container materials for the underground disposal of high level radioactive waste in Boom Clay

Kursten, B; Iseghem, P Van

Title: In situ corrosion studies on candidate container materials for the underground disposal of high level radioactive waste in Boom Clay

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Abstract

SCK{center{underscore}dot}CEN has developed in the early 1980's, with the support of NIRAS/ONDRAF and EC, an extensive in situ corrosion program to evaluate the long-term corrosion behavior of various candidate container materials for the disposal of conditioned high-level radioactive waste and spent fuel. The in situ corrosion experiments were performed in the underground research facility, HADES, situated in the Boom Clay formation at a depth of 225 meters below ground level. These experiments place the samples either in direct contact with clay (type I), in a humid clay atmosphere (type 2), or in a concrete saturated clay atmosphere (type 3). During the period 1985--1994, twelve in situ corrosion experiments were installed in the underground laboratory. The exploitation of these experiments ended in 1996. All samples were recuperated and analyzed. The purpose of this paper is to summarize and discuss the results from the type 1 corrosion experiments (samples in direct contact with Boom Clay). Surface analyses tend to indicate that the so-called corrosion-resistant materials, e.g. stainless steels, Ni- and Ti-alloys, remain intact after exposure to Boom Clay between 16 and 170 C, whereas carbon steel presents significant pitting corrosion. Carbon steel seems to be unsuitable for the Belgian repository concept (pitsmore »« less

Authors:: Kursten, B; Iseghem, P Van

Publication Date:: Thu Jul 01 00:00:00 EDT 1999

Research Org.:: Belgian Nuclear Research Center, Mel (BE)

OSTI Identifier:: 20002569

Report Number(s):: CONF-990401-
TRN: US0000337

Resource Type:: Conference

Resource Relation:: Conference: Corrosion NACExpo 99, 54th Annual Conference and Exposition, San Antonio, TX (US), 04/25/1999--04/30/1999; Other Information: 1 CD-ROM. Operating Systems: Windows 3.1, '95, '98 and NT; Macintosh; and UNIX; PBD: 1999; Related Information: In: Corrosion 99: Proceedings, [3500] pages.

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 05 NUCLEAR FUELS; CONTAINERS; CORROSION RESISTANT ALLOYS; CORROSION; STAINLESS STEELS; NICKEL ALLOYS; TITANIUM ALLOYS; CARBON STEELS; HIGH-LEVEL RADIOACTIVE WASTES; RADIOACTIVE WASTE DISPOSAL; CLAYS; TEST FACILITIES

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                    Kursten, B, and Iseghem, P Van. In situ corrosion studies on candidate container materials for the underground disposal of high level radioactive waste in Boom Clay.  United States: N. p., 1999. 
        Web.

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                    Kursten, B, & Iseghem, P Van. In situ corrosion studies on candidate container materials for the underground disposal of high level radioactive waste in Boom Clay.  United States.

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                    Kursten, B, and Iseghem, P Van. 1999.  
        "In situ corrosion studies on candidate container materials for the underground disposal of high level radioactive waste in Boom Clay".  United States.

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@article{osti_20002569,

  title        = {In situ corrosion studies on candidate container materials for the underground disposal of high level radioactive waste in Boom Clay},

  author       = {Kursten, B and Iseghem, P Van},

  abstractNote = {SCK{center{underscore}dot}CEN has developed in the early 1980's, with the support of NIRAS/ONDRAF and EC, an extensive in situ corrosion program to evaluate the long-term corrosion behavior of various candidate container materials for the disposal of conditioned high-level radioactive waste and spent fuel. The in situ corrosion experiments were performed in the underground research facility, HADES, situated in the Boom Clay formation at a depth of 225 meters below ground level. These experiments place the samples either in direct contact with clay (type I), in a humid clay atmosphere (type 2), or in a concrete saturated clay atmosphere (type 3). During the period 1985--1994, twelve in situ corrosion experiments were installed in the underground laboratory. The exploitation of these experiments ended in 1996. All samples were recuperated and analyzed. The purpose of this paper is to summarize and discuss the results from the type 1 corrosion experiments (samples in direct contact with Boom Clay). Surface analyses tend to indicate that the so-called corrosion-resistant materials, e.g. stainless steels, Ni- and Ti-alloys, remain intact after exposure to Boom Clay between 16 and 170 C, whereas carbon steel presents significant pitting corrosion. Carbon steel seems to be unsuitable for the Belgian repository concept (pits up to 240{micro}m deep are detected after direct exposure to the argillaceous environment for 2 years at 90 C). The stainless steels look very promising candidate container materials.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/20002569},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Jul 01 00:00:00 EDT 1999},

  month        = {Thu Jul 01 00:00:00 EDT 1999}

}

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