Measurements of acoustic emission due to thermocycling of oxidized high temperature alloys

The ring down counts and energy of acoustic emission (AE) signals emitted during thermal cycling of oxidized IN-519, HASTELLOY X, and INCOLOY 800 H were measured. The HT alloys were oxidized in situ under a controlled oxidation potential defined by the H 2O H 2 ratio. The hydrogen permeation was als...

Full description

Saved in:
Bibliographic Details
Published in:Journal of nuclear materials 1984-04, Vol.120 (2), p.272-277
Main Authors: Jonas, H, Golczewski, J.A
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The ring down counts and energy of acoustic emission (AE) signals emitted during thermal cycling of oxidized IN-519, HASTELLOY X, and INCOLOY 800 H were measured. The HT alloys were oxidized in situ under a controlled oxidation potential defined by the H 2O H 2 ratio. The hydrogen permeation was also continuously measured. A correlation between AE and changes of the hydrogen permeation which both occur during the thermal cycling procedure was observed. On the basis of the measurements some characteristic properties of the investigated oxide scales are derived.
ISSN:0022-3115
1873-4820
DOI:10.1016/0022-3115(84)90065-5