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A comparison of the effects of uranium and molybdenum alloying additions on the corrosion resistance of AISI Type 430 stainless steel: M34-20/74E-PDF

“To compare the effects of uranium and molybdenum alloying additions, laboratory corrosion tests were performed on AISI Type 430 stainless steels containing 0.24% and 0.55% uranium, and 1.02% and 2.03% molybdenum. In comparison with a similar unalloyed steel, both additions brought about qualitatively similar improvements of corrosion resistance both in non-oxidizing sulphuric acid and hydrochloric acid solutions and oxidizing ferric chloride solution. In these solutions, the corrosion resistance of the molybdenum-bearing steels was definitely superior to that of the uranium-bearing steels. In tests in boiling 65% nitric acid, the uranium-bearing steels and the steel containing 1.02% molybdenum showed excellent corrosion resistance, resembling that of the unalloyed steel. However, the steel containing 2.03% molybdenum showed extremely poor corrosion resistance in this medium. Anodic polarization measurements on the steels yielded results which appeared to correlate with the behaviour of the steels in the corrosion tests in oxidizing solutions containing the chloride ion. The uranium content for maximum corrosion resistance appears to lie at 0.5% or less. It is therefore clear that molybdenum is capable of imparting greater improvements in corrosion resistance to AISI Type 430 stainless steel than uranium, although higher levels of molybdenum are necessary to achieve this"--Abstract, p. i.

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Department/Agency Natural Resources Canada. Mines Branch.
Title A comparison of the effects of uranium and molybdenum alloying additions on the corrosion resistance of AISI Type 430 stainless steel
Series Title Technical bulletin ;
Publication Type Series - View Master Record
Language [English]
Format Electronic
Electronic Document

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Note Caption title. Imperfect copy: cover missing. Digitized edition from print [produced by Natural Resources Canada].
Date 1965]
Number of Pages iv, 18 p. :
Catalogue Number
  • M34-20/74E-PDF
Departmental Catalogue Number 299961
Subject Terms Steel