ASTM E821-16

Standard Practice for Measurement of Mechanical Properties During Charged-Particle Irradiation

ABSTRACT
This practice covers the measurement of the mechanical properties of materials during charged-particle irradiation, with the test materials designed to simulate or provide understanding of, or both, the mechanical behavior of materials when exposed to neutron irradiation. This practice includes requirements for test material and particle beam characterization (such as for strain, load, temperature monitoring and control, and specimen environment monitoring), and recommended procedures for measuring mechanical properties and for calculating radiation damage (such as particle ranges, damage energy, damage rates, and damage gradients). Methods for comparing ion damage with neutron damage are also recommended.
SCOPE
1.1 This practice covers the performance of mechanical tests on materials being irradiated with charged particles. These tests are designed to provide an understanding of the effects of neutron irradiation on the mechanical behavior of materials. Practices are described that govern the test material, the particle beam, the experimental technique, and the damage calculations. Reference should be made to other ASTM standards, especially Practice E521. Procedures are described that are applicable to creep and creep rupture tests made in tension and torsion test modes.2  
1.2 The word simulation is used here in a broad sense to imply an approximation of the relevant neutron irradiation environment. The degree of conformity can range from poor to nearly exact. The intent is to produce a correspondence between one or more aspects of the neutron and charged particle irradiations such that fundamental relationships are established between irradiation or material parameters and the material response.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Sep-2016
• ICS: 19.100 - Non-destructive testing
• Technical Committee: E10 - Nuclear Technology and Applications
• Drafting Committee: E10.02 - Behavior and Use of Nuclear Structural Materials

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E821 − 16
Standard Practice for
Measurement of Mechanical Properties During Charged-
1
Particle Irradiation
This standard is issued under the fixed designation E821; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
PART I—EXPERIMENTAL PROCEDURE mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1. Scope
2. Referenced Documents
1.1 This practice covers the performance of mechanical
3
2.1 ASTM Standards:
testsonmaterialsbeingirradiatedwithchargedparticles.These
E170Terminology Relating to Radiation Measurements and
tests are designed to provide an understanding of the effects of
Dosimetry
neutron irradiation on the mechanical behavior of materials.
E521Practice for Investigating the Effects of Neutron Ra-
Practices are described that govern the test material, the
diation Damage Using Charged-Particle Irradiation
particle beam, the experimental technique, and the damage
calculations. Reference should be made to other ASTM
3. Terminology
standards, especially Practice E521. Procedures are described
that are applicable to creep and creep rupture tests made in 3.1 Definitions:
2
tension and torsion test modes. 3.1.1 Descriptions of relevant terms are found in Terminol-
ogy E170.
1.2 The word simulation is used here in a broad sense to
imply an approximation of the relevant neutron irradiation
4. Specimen Characterization
environment.Thedegreeofconformitycanrangefrompoorto
4.1 Source Material Characterization:
nearly exact. The intent is to produce a correspondence
4.1.1 The source of the material shall be identified. The
between one or more aspects of the neutron and charged
chemicalcompositionofthesourcematerial,assuppliedbythe
particle irradiations such that fundamental relationships are
vendor or of independent determination, or both, shall be
established between irradiation or material parameters and the
stated. The analysis shall state the quantity of trace impurities.
material response.
Thematerial,heat,lot,orbatch,etc.,numbershallbestatedfor
1.3 The values stated in SI units are to be regarded as
commercial material. The analytical technique and composi-
standard. No other units of measurement are included in this
tional uncertainties should be stated.
standard.
4.1.2 The material form and history supplied by the vendor
1.4 This standard does not purport to address all of the
shall be stated. The history shall include the deformation
safety concerns, if any, associated with its use. It is the
process (rolling, swaging, etc.), rate, temperature, and total
responsibility of the user of this standard to establish appro-
extentofdeformation(givenasstraincomponentsorgeometri-
priate safety, health, and environmental practices and deter-
cal shape changes). The use of intermediate anneals during
mine the applicability of regulatory limitations prior to use.
processing shall be described, including temperature, time,
1.5 This international standard was developed in accor-
environment, and cooling rate.
dance with internationally recognized principles on standard-
4.2 Specimen Preparation and Evaluation:
ization established in the Decision on Principles for the
4.2.1 The properties of the test specimen shall represent the
Development of International Standards, Guides and Recom-
properties of bulk material. Since thin specimens usually will
be experimentally desirable, a specimen thickness that yields
bulk properties or information relatable to bulk properties
1
This practice is under the jurisdiction of ASTM Committee E10 on Nuclear
should be selected. This can be approached through either of
Technology and Applications and is the direct responsibility of Subcommittee
E10.02 on Behavior and Use of Nuclear Structural Materials.
Current edition approved Oct. 1, 2016. Published December 2016. Originally
3
approved in 1981. Last previous edition approved in 2009 as E821–96(2009). For referenced ASTM standards, visit the ASTM website, www.astm.org, or
DOI: 10.1520/E0821-16. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
These practices can be expanded to include mechanical tests other than those Standards volume information, refer to the standard’s Document Summary page on
specified as such experiments are proposed to Subcommittee E10.02. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E821 − 16
two techniques: (1) where the test specimen properties exactly ex-reactor neutron irradiation
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E821 − 96 (Reapproved 2009) E821 − 16
Standard Practice for
Measurement of Mechanical Properties During Charged-
1
Particle Irradiation
This standard is issued under the fixed designation E821; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
PART I—EXPERIMENTAL PROCEDURE
1. Scope
1.1 This practice covers the performance of mechanical tests on materials being irradiated with charged particles. These tests
are designed to simulate or provide understanding of, or both, the an understanding of the effects of neutron irradiation on the
mechanical behavior of materials during exposure to neutron irradiation. materials. Practices are described that govern the test
material, the particle beam, the experimental technique, and the damage calculations. Reference should be made to other ASTM
standards, especially Practice E521. Procedures are described that are applicable to creep and creep rupture tests made in tension
2
and torsion test modes.
1.2 The word simulation is used here in a broad sense to imply an approximation of the relevant neutron irradiation
environment. The degree of conformity can range from poor to nearly exact. The intent is to produce a correspondence between
one or more aspects of the neutron and charged particle irradiations such that fundamental relationships are established between
irradiation or material parameters and the material response.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
3
2.1 ASTM Standards:
E170 Terminology Relating to Radiation Measurements and Dosimetry
E521 Practice for Investigating the Effects of Neutron Radiation Damage Using Charged-Particle Irradiation
3. Terminology
3.1 Definitions:
3.1.1 Descriptions of relevant terms are found in Terminology E170.
4. Specimen Characterization
4.1 Source Material Characterization:
4.1.1 The source of the material shall be identified. The chemical composition of the source material, as supplied by the vendor
or of independent determination, or both, shall be stated. The analysis shall state the quantity of trace impurities. The material, heat,
lot, or batch, etc., number shall be stated for commercial material. The analytical technique and compositional uncertainties should
be stated.
4.1.2 The material form and history supplied by the vendor shall be stated. The history shall include the deformation process
(rolling, swaging, etc.), rate, temperature, and total extent of deformation (given as strain components or geometrical shape
changes). The use of intermediate anneals during processing shall be described, including temperature, time, environment, and
cooling rate.
1
This practice is under the jurisdiction of ASTM Committee E10 on Nuclear Technology and Applications and is the direct responsibility of Subcommittee E10.08 on
Procedures for Neutron Radiation Damage Simulation.
Current edition approved Aug. 1, 2009Oct. 1, 2016. Published September 2009December 2016. Originally approved in 1981. Last previous edition approved in 20032009
as E821 – 96 (2003).(2009). DOI: 10.1520/E0821-96R09.10.1520/E0821-16.
2
These practices can be expanded to include mechanical tests other than those specified as such experiments are proposed to Subcommittee E10.08.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E821 − 16
4.2 Specimen Preparation and Evaluation:
4.2.1 The properties of the test specimen shall represent the properties of bulk material. Since thin specimens usually will be
experimentally desirable, a specimen thickness that yields bulk properties or information relatable to bulk properties
...