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Fatigue resistance of press hardened 22MnB5 steels

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10.1016/j.ijfatigue.2019.105262
 
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Parareda, Sergi
Casellas Padró, DanielMés informació
Frómeta Gutiérrez, DavidMés informació
Lara, Antoni
Pujante Agudo, JaumeMés informació
Document typeArticle
Defense date2020-01-01
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs  International
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs International
Abstract
In press hardened steels, fatigue behaviour is very sensitive to surface defects or irregularities, either intrinsic or introduced during trimming operations. This work addresses the understanding and prediction of fatigue resistance of press hardened steels from a fracture mechanics approach. The size of fatigue originating defects were evaluated and used to estimate the fatigue limit for different surface conditions (coated and uncoated), different coatings (Al-Si and Zn) and different edge condition (polished and mechanically trimmed). Good agreement was found between calculated and experimental values, which shows the potential of fracture mechanics to estimate the fatigue performance of press hardened steels.
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© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
CitationParareda, S. [et al.]. Fatigue resistance of press hardened 22MnB5 steels. "International journal of fatigue", 1 Gener 2020, vol. 130, p. 105262:1-105262:10. 
URIhttp://hdl.handle.net/2117/342083
DOI10.1016/j.ijfatigue.2019.105262
ISSN0142-1123
Publisher versionhttps://www.sciencedirect.com/science/article/abs/pii/S0142112319303664
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