Demonstration of lithographic patterning in measurements of general and localized corrosion on alloy 22

Technical Report · Thu Jul 01 00:00:00 EDT 1999

DOI:https://doi.org/10.2172/14590· OSTI ID:14590

Bedrossian, P J; Farmer, J C

We have demonstrated a new technique capable of detecting generalized corrosion of metallographically-polished materials with nanometer-scale precision. After exposing a lithographically-patterned coupon of Alloy 22 to an electrolyte in a potentiostatically-controlled cell for twenty-four hours, we detected the loss of up to 130nm of metal. In addition, ''wormholes'' were detected at certain points of intersection of three grain boundaries.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE Office of Defense Programs (DP) (US)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 14590
• Report Number(s): UCRL-ID-135215; TRN: AH200129%%327
• Resource Relation: Other Information: PBD: 1 Jul 1999
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALLOYS
CORROSION
ELECTROLYTES
GRAIN BOUNDARIES