fatigue life of high strength steel for cold forming
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2017
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Abstract
The article presents the results of fatigue tests carried out on STRENX-type high-strength cold forming steel. For high-cycle fatigue tests carried out using low cycle loading frequencies of around 30 Hz, a ROTOFLEX machine was used. For ultra high-cycle tests, a KAUP-ZU testing machine was employed, which enables fatigue tests to be performed with symetric specimen loading (R = -1) and at a frequency of f ≈ 20 kHz. The relationships σa = f(N) were determined experimentally in the high and ultra high-cycle region for STRENX high-strength steel. To determine the fatigue crack initiation mechanism, the fractographic analysis of fatigue fractures was made.
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ulewicz2017metalurgijafatigue
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| Authors | ;R. Ulewicz;F. Novy |
| Journal | journal of the formosan medical association = taiwan yi zhi |
| Year | 2017 |
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