Inter- and intragranular stresses in cyclically-deformed 316 stainless steel
Creators
- 1. Spallation Neutron Source (SNS), Oak Ridge National Laboratory, Oak Ridge, TN 37830 (United States) and Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States)
- 2. Spallation Neutron Source (SNS), Oak Ridge National Laboratory, Oak Ridge, TN 37830 (United States)
- 3. Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996-2200 (United States)
- 4. Intense Pulsed Neutron Source, Argonne National Laboratory, Argonne, IL 60439 (United States)
Description
Neutron diffraction was used to study residual stresses in cyclically-deformed 316 LN stainless steel. The tension-compression high-cycle fatigue tests were conducted in air with a frequency of 0.2 Hz. Large intergranular stresses were found to develop in the stainless steel as a result of elastic and plastic anisotropy. These intergranular stresses started to decrease when micro-cracks were initiated at the surface and vanished when the sample reached failure. Cyclic loading also led to the development of intragranular stresses, as evidenced by the broadening of the diffraction peaks. Analysis of the orientation dependence of the measured peak widths indicates that the immobile dislocations generated by fatigue deformation are mostly edge rather than screw type
Additional details
Identifiers
- DOI
- 10.1016/j.msea.2005.02.030;
- PII
- S0921-5093(05)00169-3;
Publishing Information
- Journal Title
- Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
- Journal Volume
- 399
- Journal Issue
- 1-2
- Journal Page Range
- p. 114-119
- ISSN
- 0921-5093
- CODEN
- MSAPE3
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38076037
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANISOTROPY; COMPRESSION; CRACKS; DEFORMATION; DISLOCATIONS; FASTENERS; FATIGUE; LOADING; NEUTRON DIFFRACTION; PEAKS; PLASTICS; RESIDUAL STRESSES; STAINLESS STEELS
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; COHERENT SCATTERING; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DIFFRACTION; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; LINE DEFECTS; MATERIALS; MATERIALS HANDLING; MECHANICAL PROPERTIES; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; POLYMERS; SCATTERING; STEELS; STRESSES; SYNTHETIC MATERIALS; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.