Trajectory and Crystallography of Crack Growth in Austenitic Steel after LCF Tests-Reference-Cited by-同舟云学术

Trajectory and Crystallography of Crack Growth in Austenitic Steel after LCF Tests

Published:2013-11 Issue: Volume:592-593 Page:793-796
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Eterashvili Tamaz¹,Dzigrashvili Temur¹,Vardosanidze Manana¹

Affiliation:

1. Georgian Technical University

Abstract

Analysis of microcrack and mesocrack formation in austenitic steel thin filmsprepared after low-cycle fatigue (LCF) testsfrom bulk samples is presented using TEM techniques. Location, orientation and interaction of microcracks with microstructure components of the steel were determined. Plastic zone ahead of mesocrack tip and the structure changes in it were analyzed. Crystallography of slip bands and deformation twins and their relation with the microcrack propagation direction were also determined. The impact of grain anisotropy and inhomogeneous distribution of stress relaxation ahead of mesocrack tip in plastic zone were considered. Influence of sizes of mesocracks [ and microcracks and their relation with the trajectory and crystallography of propagation are also discussed.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.592-593.793.pdf

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1. Deviations of Microcrack during Propagation in Thin Films of Austenitic Steel and Accompanying Accommodative Processes;Key Engineering Materials;2014-09