Published August 10, 2013 | Version v1
Journal article Metadata-only

3D analysis of micro-deformation in VHCF-loaded nodular cast iron by μCT

Creators

  • 1. RIF e.V. Institut für Forschung und Transfer, Joseph-von-Fraunhofer-Str. 20, D-44227 Dortmund (Germany)
  • 2. BAM Bundesanstalt für Materialforschung und -prüfung, Unter den Eichen 87, D-12205 Berlin (Germany)
  • 3. Technische Universität Dortmund, Fakultät Maschinenbau, Lehrstuhl für Werkstofftechnologie, D-44221 Dortmund (Germany)

Description

The impact of very high cycle fatigue (VHCF) load conditions on the microstructure of specimens consisting of nodular cast iron is analyzed by means of micro-computed tomography (μCT) utilizing both monochromatic synchrotron radiation and polychromatic X-ray tube radiation. Using 3D μCT, the microstructure in the region of the smallest cross-sections of shouldered round specimens is imaged in different stages of the VHCF loading. By digital image correlation (DIC) of these tomograms strain fields are analyzed three-dimensionally. Strain levels in the range of a few percent were detected. It is proven that a localization of strain allows to predict the site of the crack which precedes and induces the macroscopic failure of the specimens

Availability note (English)

Available from http://dx.doi.org/10.1016/j.msea.2013.04.057

Additional details

Identifiers

DOI
10.1016/j.msea.2013.04.057;
PII
S0921-5093(13)00448-6;

Publishing Information

Journal Title
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Journal Volume
577
Journal Page Range
p. 202-209
ISSN
0921-5093
CODEN
MSAPE3

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45106252
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CAST IRON; COMPUTERIZED TOMOGRAPHY; CRACKS; CROSS SECTIONS; DEFORMATION; FATIGUE; MICROSTRUCTURE; MONOCHROMATIC RADIATION; STRAINS; SYNCHROTRON RADIATION; X-RAY TUBES
Descriptors DEC
ALLOYS; BREMSSTRAHLUNG; CARBON ADDITIONS; DIAGNOSTIC TECHNIQUES; ELECTROMAGNETIC RADIATION; ELECTRON TUBES; EQUIPMENT; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; RADIATIONS; SILICON ALLOYS; TOMOGRAPHY; TRANSITION ELEMENT ALLOYS; X-RAY EQUIPMENT

Optional Information

Copyright
Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.