Journal info
Select Journal
Journals
Bratislava Medical Journal Endocrine Regulations General Physiology and Biophysics Neoplasma Acta Virologica Studia Psychologica Cardiology Letters Psychológia a patopsych. dieťaťa Kovove Materialy-Metallic Materials 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 Slovenská hudbaWebshop Cart
Your Cart is currently empty.
Metallic Materials Vol. 52 (2014), no. 5, pp.269-277 |
||
Title: Assessment of fatigue damage development in power engineering steel by local strain analysis | ||
Author: D. KUKLA, Z. KOWALEWSKI, P. GRZYWNA, K. KUBIAK | ||
Abstract: The results of analysis of fatigue damage development in the X10CrMoVNb9-1 (P91) steel specimens subjected to various cyclic loading combinations are presented. The study concerning a quantitative assessment of damage is based on analysis of the fatigue hysteresis evolution in subsequent loading cycles. According to the elaborated algorithms, damage parameters were determined on the basis of two indicators, i.e., average strain and strain amplitude variations. Each of them was responsible for a single damage development mechanism. The average strain characterized ratcheting effect, which is usually related to local generation of plastic strain surrounding microstructural elements. The second damage mechanism called cyclic plasticity is connected with micro slips preceding slip bands formation. The paper also discusses the results of metallographic and fractographic microscopic (SEM) observations of the tested specimens in order to indicate microstructural aspects of fatigue damage development mechanisms. |
||
Keywords: fatigue test, steels, fracture, scanning electron microscopy, microstructure | ||
Year: 2014, Volume: 52, Issue: 5 | Page From: 269, Page To: 277 | |
doi:10.4149/km_2014_5_269 |
||
Price:
4.50 €
|
||
|
||