In the hot brine environment, pitting corrosion or crevice corrosion at elevated temperatures limits a commercially pure alloy as heat exchanger tubing to service below 250 F. This work reviews the corrosion evaluation studies and subsequent alloy development program which has resulted in the development of the Ti-2Ni alloy suitable for service to 350 F. The laboratory experimental techniques which were developed during this program are reviewed. The information obtained from each test is related to the mechanism of corrosion attack. The role of the nickel addition and its effect in modifying the rates of reaction is reviewed. Field service experience with titanium is reviewed and related to the laboratory test program.

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