ASTM E 942 : 2016
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Standard Guide for Investigating the Effects of Helium in Irradiated Metals
Hardcopy , PDF
14-07-2023
English
01-08-2022
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
Committee |
E 10
|
DocumentType |
Guide
|
Pages |
12
|
PublisherName |
American Society for Testing and Materials
|
Status |
Superseded
|
SupersededBy | |
Supersedes |
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.
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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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