SS-EN-ISO-21432 › Non-destructive testing - Standard test method for determining residual stresses by neutron diffraction (ISO 21432:2019)
SS-EN-ISO-21432
-
2020 EDITION
-
CURRENT
Document Center Inc. is an authorized dealer of SIS standards.
The following bibliographic material is provided to assist you with your purchasing decision:
The following bibliographic material is provided to assist you with your purchasing decision:
This document describes the test method for determining residual stresses in polycrystalline materials by neutron diffraction. It is applicable to both homogeneous and inhomogeneous materials including those containing distinct phases. The principles of the neutron diffraction technique are outlined. Suggestions are provided on: the selection of appropriate diffracting lattice planes on which measurements should be made for different categories of materials, the specimen directions in which the measurements should be performed, and the volume of material examined in relation to the material grain size and the envisaged stress state. Procedures are described for accurately positioning and aligning test pieces in a neutron beam and for precisely defining the volume of material sampled for the individual measurements. The precautions needed for calibrating neutron diffraction instruments are described. Techniques for obtaining a stress-free reference are presented. The methods of making individual measurements by neutron diffraction are described in detail. Procedures for analysing the results and for determining their statistical relevance are presented. Advice is provided on how to determine reliable estimates of residual stresses from the strain data and on how to estimate the uncertainty in the results.
To find similar documents by classification:
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Designation Name
SS-EN ISO 21432:2020
Revision Level
2020 EDITION
Status
Current
Publication Date
Oct. 1, 2020
Language(s)
English
Page Count
60
International Equivalent
EN ISO 21432:2020(IDT); ISO 21432:2019(IDT)