APPLICATION OF POSITRON ANNIHILATION TO FATIGUE AND PLASTIC DAMAGE DETECTION IN SA508 AND TYPE 304 STEELS
Source abstract
Abstract
Abstract The positron annihilation(PA) lineshape analysis method was applied to evaluate the fatigue damage in SA508 Ierritic steel and type 304 stainless steel, and the damage distribution in a type 304 sample plastically deformed by 3-point bending. The PA was found to be effective to detect early stages of the fatigue damage (less than 25% of the cycles to failure) in both SA508 and type 304. The S-parameter distribution measured by the PA across the 15% pre-strained type304 by 3-point bending should have a good agreement with the analytically expected strain distribution.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Muon and positron interactions and applications · Fusion materials and technologies · Particle accelerators and beam dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (3)
Show source-provided references
1. Hautojarvi . Positron Annihilation , Springer-Verlag , Heidelberg ( 1979 )
2. A. E. Hughes , Positron Annihilation , Proc. of the Eurotest Conference ”New Trend in NDT“ ( 1982 ).
3. A.J Allen , C.F Coleman , S.J Conchie , M.T Hutchings and F.A Smith . “In the field” NDT mapping of plastic damage in metal and alloy components using positron annihilation techniques and comparison with residual stresses' , Proc. 4th Euro NDT Conf. ( 1988 ), pp. 2193 – 2202 .