Commercially pure titanium and low-alloy α-alloy PT-7M with a hydrogen content above the solubility limit at 20°C is inclined towards aging, i.e., a reduction in impact strength during storage. Aging is due to separation of titanium hydride in the structure and it occurs more rapidly, the more hydrogen in the alloy.
A basic method for removing hydrogen aging and stabilizing impact strength is degassing the alloy by heat treatment in a vacuum.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 46–48, March, 1989.
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Syshchikov, V.I., Kolodkina, G.I. & Chechulin, B.B. Aging of titanium and low-alloy α-alloy under the influence of hydrogen. Met Sci Heat Treat 31, 219–222 (1989). https://doi.org/10.1007/BF00715832
- Heat Treatment
- Impact Strength