The influence of growth rate and temperature on high cycle fatigue of directionally solidified AI-AI(sub 3)Ni eutectic alloy
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Authors
Maurer, Gernant E.
Issue Date
1976-07
Type
Electronic thesis
Thesis
Thesis
Language
ENG
Keywords
Metallurgy
Alternative Title
Abstract
Dislocation substructure-fiber interactions were studied by transmission electron microscopy. The dislocation cell size and the amount of dislocation substructure generated during high cycle fatigue was found to be a function of interfiber spacing. In 11 cm/hr material, the fiber spacing was smaller than the mutual trapping distance of the matrix dislocations and very little dislocation substructure was formed during fatigue. Extensive cellular substructure was formed in material grown at 0.5 and 3.5 cm/hr, apparently because the fiber spacing was greater than the mutual trapping distance of the dislocation. Differences in the substructure generated were used to interpret the hysteresis responses of the individual growth rates.
Description
July 1976
School of Engineering
School of Engineering
Full Citation
Publisher
Rensselaer Polytechnic Institute, Troy, NY