Mechanism of Titanium Corrosion in Mineral Acids and Their Mixtures

Abstract

The corrosion resistance and electromechanical behavior of titanium in solutions of sulphuric, hydrochloric, and phosphoric acid in the 20-80 deg C temperature interval were studied. It was shown that given identical solution acidity, the most aggressive with respect to titanium is sulphuric acid. The addition of sodium chloride and sulphate to phosphoric acid stimulates titanium dissolution. Sodium phosphates slow down titanium corrosion in sulphuric and hydrochloric acid slightly. The most effective in this respect is tertiary sodium phosphate. A foundation was developed for selecting a solution for the chemical removal of scale which forms on titanium at 780-820 deg C.

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Document Details

Document Type
Technical Report
Publication Date
Oct 10, 1973
Accession Number
AD0768473

Entities

People

  • A. P. Brynza
  • E. A. Zhivotovskii
  • L. I. Gerasyutina

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Absorption
  • Acids
  • Body Weight
  • Chlorides
  • Corrosion
  • Corrosion Resistance
  • Foreign Technology
  • Hydrochloric Acid
  • Materials
  • Metals
  • Oxide Films
  • Phosphoric Acids
  • Resistance
  • Sodium
  • Sodium Compounds
  • Time Dependence
  • Titanium

Readers

  • Materials Science and Engineering.

Technology Areas

  • Microelectronics