KnE Engineering
ISSN: 2518-6841
The latest conference proceedings on all fields of engineering.
Luders Deformation Mechanisms on Yield Point in X80 Grade Pipeline with Ultrafine Structure
Published date: Apr 15 2019
Journal Title: KnE Engineering
Issue title: XIX International scientific-technical conference “The Ural school-seminar of metal scientists-young researchers”
Pages: 293–299
Authors:
Abstract:
Strain ageing in X80 grade pipeline with ultrafine ferrite-bainite structure by Digital Image Correlation (DIC) technique at tensile test has been studied. Three types of Luders deformation mechanisms on yield point were observed using DIC fields analysis. It was determined that mechanical behavior of the material on uniform parabolic stage of deformation strongly depends on Luders deformation mechanism type.
Keywords: X80 grade pipeline steel, stress-strain curve, discontinuous yielding, Luders deformation, Digital Image Correlation analysis, strain ageing
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