UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

ASTM E942

Standard Guide for Investigating the Effects of Helium in Irradiated Metals

active, Most Current
Buy Now
Organization: ASTM
Publication Date: 1 December 2016
Status: active
Page Count: 12
scope:

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. 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

Three 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

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

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

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

Document History

ASTM E942
December 1, 2016
Standard Guide for Investigating the Effects of Helium in Irradiated Metals
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...
January 10, 1996
Standard Guide for Simulation of Helium Effects in Irradiated Metals
1. Scope 1.1 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...
January 10, 1996
Standard Guide for Simulation of Helium Effects in Irradiated Metals
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...
January 10, 1996
Standard Guide for Simulation of Helium Effects in Irradiated Metals
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...
October 27, 1989
STANDARD GUIDE FOR SIMULATION OF HELIUM EFFECTS IN IRRADIATED METALS
A description is not available for this item.
April 29, 1983
STANDARD GUIDE FOR SIMULATION OF HELIUM EFFECTS IN IRRADIATED METALS
A description is not available for this item.

References

Advertisement