EFFECT OF HYDROGEN ON THE FATIGUE PROPERTIES OF TITANIUM AND Ti-8 Pct Mn ALLOY
Journal Article
·
· Trans. Met. Soc. AIME
OSTI ID:4309265
Hydrogen additions of 390 ppm to A-55 titanium and 368 ppm to Ti--8 pct Mn have no deleterious effect on the unnotched and notched rotating-beam fatigue properties of these materials. These amounts of hydrogen, however, are sufficient to cause severe notch-impact embrittlement in A-55 titanium and pronounced loss of tensile ductility in Ti--8 pct Mn. The lack of embrittling effect in fatigue in the latter alloy is consistent with the postulated strainaging mechanism of hydrogen embrittlement in alpha - method of ga alloys. There is a significant increase in the unnotcbed endurance limit of A-55 titanium with the addition of hydrogen. This increase may be explained as the result of internal heating effects which would dissolve the hydride and cause solid- solution strengthening. (auth)
- Research Organization:
- Battelle Memorial Inst., Columbus, Ohio
- NSA Number:
- NSA-12-006636
- OSTI ID:
- 4309265
- Journal Information:
- Trans. Met. Soc. AIME, Journal Name: Trans. Met. Soc. AIME Vol. Vol: 212, No. 1
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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