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ASTM E 942 : 2016

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Guide for Investigating the Effects of Helium in Irradiated Metals
Available format(s)

Hardcopy , PDF

Superseded date

07-14-2023

Language(s)

English

Published date

08-01-2022

This guide provides advice for conducting experiments to investigate the effects of helium on the properties of metals where the technique for introducing the helium differs in some way from the actual mechanism of introduction of helium in service

1.1This guide provides advice for conducting experiments to investigate the effects of helium on the properties of metals where the technique for introducing the helium differs in some way from the actual mechanism of introduction of helium in service. Techniques considered for introducing helium may include charged particle implantation, exposure to α-emitting radioisotopes, and tritium decay techniques. Procedures for the analysis of helium content and helium distribution within the specimen are also recommended.

1.2Three other methods for introducing helium into irradiated materials are not covered in this guide. They are: (1) the enhancement of helium production in nickel-bearing alloys by spectral tailoring in mixed-spectrum fission reactors, (2) a related technique that uses a thin layer of NiAl on the specimen surface to inject helium, and (3) isotopic tailoring in both fast and mixed-spectrum fission reactors. These techniques are described in Refs (1-6).2 Dual ion beam techniques (7) for simultaneously implanting helium and generating displacement damage are also not included here. This latter method is discussed in Practice E521.

1.3 In addition to helium, hydrogen is also produced in many materials by nuclear transmutation. In some cases it appears to act synergistically with helium (8-10). The specific impact of hydrogen is not addressed in this guide.

1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This 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.

Committee
E 10
DocumentType
Guide
Pages
12
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM E 521 : 2016 Standard Practice for Investigating the Effects of Neutron Radiation Damage Using Charged-Particle Irradiation

ASTM E 706 : 2016 Standard Master Matrix for Light-Water Reactor Pressure Vessel Surveillance Standards
ASTM C 859 : 2023 Standard Terminology Relating to Nuclear Materials
ASTM C 859 : 2014 : REV B Standard Terminology Relating to Nuclear Materials
ASTM E 521 : 2016 Standard Practice for Investigating the Effects of Neutron Radiation Damage Using Charged-Particle Irradiation
ASTM E 706 : 2023 Standard Master Matrix for Light-Water Reactor Pressure Vessel Surveillance Standards
ASTM E 170 : 2020 Standard Terminology Relating to Radiation Measurements and Dosimetry
ASTM E 706 : 2001 Standard Master Matrix for Light-Water Reactor Pressure Vessel Surveillance Standards, E706(0)
ASTM E 170 : 2023 Standard Terminology Relating to Radiation Measurements and Dosimetry
ASTM C 859 : 2022 Standard Terminology Relating to Nuclear Materials
ASTM C 859 : 2022 : REV A Standard Terminology Relating to Nuclear Materials

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