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Hot-salt stress-corrosion of titanium

a review of the problem and methods for improving the resistance of titanium

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Abstract

A review is given of the problem of hot-salt stress cracking of titanium which covers: steady-state threshold data, environmental effects, mechanism of attack and preventive measures.

The conditions to produce hot-salt cracking under static steady-state conditions are well defined. But, there is yet no rationale for the lack of a single part failure in aircraft flight.

Effective preventive measures include: shot peen-ing, metallic coatings, special heat treatments and alloy selection. The Beta III alloy shows a high salt-cracking threshold even after heat treatment to high strength levels.

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Authors and Affiliations

  1. Crucible Materials Research Center, Colt Industries, Inc., Pittsburgh, Pa, USA

    V. C. Petersen (staff metallurgist)

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Petersen, V.C. Hot-salt stress-corrosion of titanium. JOM 23, 40–47 (1971). https://doi.org/10.1007/BF03355696

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