Abstract

A new thermographic method that enables simultaneous accelerated determination of the fatigue limit and the S-N curve was presented in this paper. The fatigue limit determination method was based on a constant rate of temperature rise occurring in second phase of the specimen fatigue life. The S-N curve determination method was based on energetic parameter with assumption of its dependency on the stress amplitude. The tests made on X5CrNi18-10 steel under reversed bending revealed that the fatigue limit value obtained from accelerated thermographic tests as compared to the value obtained from full test differs by 5.0 %. The S-N curve obtained by accelerated thermographic method fits inside 95 % confidence interval for the S-N curve obtained from full test.

Details

Title
Accelerated Determination of Fatigue Limit and S-N Curve by Means of Thermographic Method for X5CrNi18-10 Steel
Author
Lipski, Adam 1 

1  Faculty of Mechanical Engineering, Department Laboratory for Research on Materials and Structures, UTP University of Science and Technology, Al. Prof. S. Kaliskiego 7, PL 85-796 Bydgoszcz, Poland 
Pages
22-27
Publication year
2016
Publication date
2016
Publisher
De Gruyter Poland
ISSN
18984088
e-ISSN
23005319
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1515/ama-2016-0004
ProQuest document ID
3155702295
Copyright
© 2016. This work is published under http://creativecommons.org/licenses/by-nc-nd/3.0 (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.