Corrosion Experience with Type 316 Stainless Steel in Sodium-Potassium Eutectic Alloy at 1400 deg. F

Abstract

Service test examinations were performed on the Type 316 stainless steel loop for circulating sodium-potassium (NaK) eutectic alloy in the Waste Calcining Facility at the Idaho Chemical Processing Plant. These examinations of the stainless steel loop revealed the cumulative effects of 24,30O hours of operation at temperatures of llOO-l4OOF during the last six years. Although Type 316 stainless steel performed satisfactorily and is still being used in this service, the results showed that changes in mechanical properties and metallurgical effects occur with circulating non-isothermal NaK in contact with Type 316 stainless steel. Some mass transfer of alloying elements from the hot regions of the Type 316 stainless steel loop to the colder regions was observed. The mitigation of these effects is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1968
Accession Number
ADA382493

Entities

People

  • T. L. Hoffman

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Alloys
  • Ceramic Materials
  • Chemical Analysis
  • Chemical Synthesis
  • Chemistry
  • Corrosion
  • Elements
  • Fluids
  • High Temperature
  • Hot Regions
  • Mass Transfer
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Mechanical Properties
  • Metals
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Powder metallurgy of Titanium alloys.
  • Thermal Physics or Thermal Science.