Author： Rozumek D.
Publisher： Springer Publishing Company
ISSN： 1068-820X
Source： Materials Science, Vol.47, Iss.1, 2011-07, pp. : 89-94
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Abstract
We present the results of fatigue crack-growth tests for Ti-6Al-4V titanium alloy. Plane specimens 4 mm in thickness with a unilateral notch were tested. The analysis of crack growth was carried out for specimens without and after oxygenation process for 2 and 4 h. The fatigue crack growth rate was determined. It follows from the test results that the fatigue crack growth in the specimens without thermochemical treatment differs from the fatigue crack growth in the specimens after oxygenation. It has been also found that the applied surface treatment increases the fatigue life of the considered alloy.
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