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Title: Corrosion of candidate container materials by Yucca Mountain bacteria

Abstract

Several candidate container materials have been studied in modified Yucca Mountain (YM) ground water in the presence or absence of YM bacteria. YM bacteria increased corrosion rates by 5-6 fold in UNS G10200 carbon steel, and nearly 100-fold in UNS NO4400 Ni-Cu alloy. YM bacteria caused microbiologically influenced corrosion (MIC) through de-alloying or Ni-depletion of Ni-Cu alloy as evidenced by scanning electronic microscopy (SEM) and inductively coupled plasma spectroscopy (ICP) analysis. MIC rates of more corrosion-resistant alloys such as UNS NO6022 Ni-Cr- MO-W alloy, UN's NO6625 Ni-Cr-Mo alloy, and UNS S30400 stainless steel were measured below 0.05 umyr, however YM bacteria affected depletion of Cr and Fe relative to Ni in these materials. The chemical change on the metal surface caused by depletion was characterized in anodic polarization behavior. The anodic polarization behavior of depleted Ni-based alloys was similar to that of pure Ni. Key words: MIC, container materials, YM bacteria, de-alloying, Ni-depletion, Cr-depletion, polarization resistance, anodic polarization,

Authors:
; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
12215
Report Number(s):
UCRL-JC-132825
TRN: US0102375
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: NACE Annual Conference and Exposition, CORROSION/99, San Antonio, TX (US), 04/25/1999--04/30/1999; Other Information: PBD: 10 Dec 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; BACTERIA; CARBON STEELS; CONTAINERS; CORROSION; GROUND WATER; STAINLESS STEEL-304; YUCCA MOUNTAIN; RADIOACTIVE WASTE FACILITIES; RADIOACTIVE WASTE DISPOSAL; BIOLOGICAL FOULING; NICKEL BASE ALLOYS; COPPER ALLOYS; CHROMIUM ALLOYS; MOLYBDENUM ALLOYS; TUNGSTEN ALLOYS

Citation Formats

Horn, J, Jones, D, Lian, T, Martin, S, and Rivera, A. Corrosion of candidate container materials by Yucca Mountain bacteria. United States: N. p., 1999. Web.
Horn, J, Jones, D, Lian, T, Martin, S, & Rivera, A. Corrosion of candidate container materials by Yucca Mountain bacteria. United States.
Horn, J, Jones, D, Lian, T, Martin, S, and Rivera, A. Fri . "Corrosion of candidate container materials by Yucca Mountain bacteria". United States. https://www.osti.gov/servlets/purl/12215.
@article{osti_12215,
title = {Corrosion of candidate container materials by Yucca Mountain bacteria},
author = {Horn, J and Jones, D and Lian, T and Martin, S and Rivera, A},
abstractNote = {Several candidate container materials have been studied in modified Yucca Mountain (YM) ground water in the presence or absence of YM bacteria. YM bacteria increased corrosion rates by 5-6 fold in UNS G10200 carbon steel, and nearly 100-fold in UNS NO4400 Ni-Cu alloy. YM bacteria caused microbiologically influenced corrosion (MIC) through de-alloying or Ni-depletion of Ni-Cu alloy as evidenced by scanning electronic microscopy (SEM) and inductively coupled plasma spectroscopy (ICP) analysis. MIC rates of more corrosion-resistant alloys such as UNS NO6022 Ni-Cr- MO-W alloy, UN's NO6625 Ni-Cr-Mo alloy, and UNS S30400 stainless steel were measured below 0.05 umyr, however YM bacteria affected depletion of Cr and Fe relative to Ni in these materials. The chemical change on the metal surface caused by depletion was characterized in anodic polarization behavior. The anodic polarization behavior of depleted Ni-based alloys was similar to that of pure Ni. Key words: MIC, container materials, YM bacteria, de-alloying, Ni-depletion, Cr-depletion, polarization resistance, anodic polarization,},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {12}
}

Conference:
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