Influence of microstructure on fatigue crack propagation under bending in the alloy Ti–6Al–4V after heat treatment |
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| Authors: | D. Rozumek M. Hepner |
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| Affiliation: | Opole University of Technology, Faculty of Mechanical Engineering, Opole, Poland |
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| Abstract: | The paper presents the test results obtained for fatigue crack growth in Ti–6Al–4V titanium alloy subjected to bending. The tests were performed in plane specimens with the stress concentrators being a one‐sided sharp notch. The tested specimens were made of the oxygenated Ti–6Al–4V subjected to various variants of heat treatment. The tests were carried out at the fatigue test stand MZGS‐100 under loading frequency 28.4 Hz. From the obtained results of fatigue and structural tests it appears that schemes of crack propagation and fatigue lives of the considered alloy are different depending on a structure obtained as a result of a given heat treatment. |
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| Keywords: | Ermü dungsrisswachstum Wä rmebehandlung Gefü ge Biegung Kerbe Fatigue crack growth heat treatment microstructure bending notch |
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