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Role of pH on the stress corrosion cracking of titanium alloys (1973)

Beck, F. H. ; Khokhar, M. I. ; Fontana, M. G.

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Publication Date: 2011-08-16

Description: Stress corrosion cracking (SCC) experiments were conducted on Ti-8-1-1 wire specimens in hydrochloric and sulfuric acids of variable pH in order to determine the effect of pH on the susceptibility to cracking. The alloy exhibited increasing susceptibility with decreasing pH. By varying the applied potential, it was observed that susceptibility zones exist both in the cathodic and the anodic ranges. In the cathodic range, susceptibility also increased with decreasing applied potential. Corrosion potential-time data in hydrochloric acid (pH 1.7) and sulfuric acid (pH 1.7) indicate that chloride ions lower the corrosion potential of the specimen which, in turn, increases the susceptibility.

Keywords: MATERIALS, METALLIC

Type: Corrosion; 29; Nov. 197

Format: text

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