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Corrosion behavior of weldments of Ti and Ti-5Ta for nuclear fuel reprocessing plants

Journal Article · · Journal of Materials Engineering and Performance
DOI:https://doi.org/10.1007/BF02646452· OSTI ID:201034
; ;  [1]
  1. Indira Gandhi Centre for Atomic Research, Kalpakkam (India). Metallurgy Div.
Corrosion studies on specimens of nuclear-grade type 304L stainless steel, titanium, Ti-5Ta, and their respective weldments were carried out in a boiling nitric acid medium, as well as in boiling nitric acid containing hexavalent chromium and divalent silver ions. The weldments were prepared using a tungsten inert gas welding process. Titanium and its weldment showed excellent corrosion resistance in both media compared to 304L stainless steel. Specimens of Ti-5Ta alloy base showed excellent corrosion resistance, whereas its weldment showed higher corrosion rates in boiling nitric acid medium. Scanning electron microscopy and x-ray diffraction analyses were carried out on the tested specimens to examine the scale morphology and the phases present on the surface.
Sponsoring Organization:
USDOE
OSTI ID:
201034
Journal Information:
Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 6 Vol. 4; ISSN 1059-9495; ISSN JMEPEG
Country of Publication:
United States
Language:
English