Electrochemical dissolution of rhenium bearing super alloys

J. Brent Hiskey, John Snowberger

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The electrochemical dissolution of super alloys containing different amounts of rhenium was investigated. The initial part of the investigation focused on the anodic dissolution of rhenium from second-generation (3% Re) and third-generation (6% Re) nickel based alloys. Exploratory electrochemical tests were conducted to evaluate solution chemistries and to establish fundamental dissolution behavior of the alloys. These included rotating disc electrode (RDE) cyclic voltammetry, linear sweep voltammetry, and chronoamperometry tests. Electrolytes comprising sulfuric acid, hydrochloric acid, and ammonium sulfate were examined. Of these, a 0.1 M HCl solution proved to be extremely effective for electrochemical dissolution of samples of CMSX-4, CMSX-10, and SC-180 alloys. This paper discusses in detail the electrochemical behavior of these alloys.

Original languageEnglish (US)
Title of host publicationRare Metal Technology 2014 - Held During TMS 2014 143rd Annual Meeting and Exhibition
PublisherMinerals, Metals and Materials Society
Number of pages6
ISBN (Print)9781118888827
StatePublished - 2014
Externally publishedYes
EventRare Metal Technology 2014 - TMS 2014 143rd Annual Meeting and Exhibition - San Diego, CA, United States
Duration: Feb 16 2014Feb 20 2014

Publication series

NameTMS Annual Meeting


OtherRare Metal Technology 2014 - TMS 2014 143rd Annual Meeting and Exhibition
Country/TerritoryUnited States
CitySan Diego, CA


  • Dissolution
  • Electrochemical
  • Rhenium
  • Super Alloys

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys


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