Preprint Article Version 1 This version not peer reviewed

High-Cycle Microscopic Corrosion Fatigue Behavior and Life Prediction of 25CrMo Steel Used in Railway Axle

Version 1 : Received: 16 March 2017 / Approved: 17 March 2017 / Online: 17 March 2017 (05:11:02 CET)

A peer-reviewed article of this Preprint also exists.

Wang, Y.-L.; Wang, X.-S.; Wu, S.-C.; Yang, H.-H.; Zhang, Z.-H. High-Cycle Microscopic Severe Corrosion Fatigue Behavior and Life Prediction of 25CrMo Steel Used in Railway Axles. Metals 2017, 7, 134. Wang, Y.-L.; Wang, X.-S.; Wu, S.-C.; Yang, H.-H.; Zhang, Z.-H. High-Cycle Microscopic Severe Corrosion Fatigue Behavior and Life Prediction of 25CrMo Steel Used in Railway Axles. Metals 2017, 7, 134.

Journal reference: Metals 2017, 7, 134
DOI: 10.3390/met7040134

Abstract

The effects of environmental media on the corrosion fatigue fracture behavior of 25CrMo steel were investigated. The media include air, and a 3.5 wt.% and a 5.0 wt.% NaCl solutions. Experimental results indicate that the media induces the initiation of corrosion fatigue cracks at multiple sites. The multi-cracking sites cause the changes in the crack growth directions, the crack growth rate during the coupling action of the media and the stress amplitude. The coupling effects are important for engineering applications and research. The probability and predictions of the corrosion fatigue characteristic life can be estimated using the 3-parameter Weibull distribution function.

Subject Areas

corrosion fatigue; characteristic life prediction; 25CrMo steel; microscopic analysis; Weibull distribution

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