The influence of growth rate and temperature on high cycle fatigue of directionally solidified AI-AI(sub 3)Ni eutectic alloy

Authors
Maurer, Gernant E.
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Other Contributors
Stoloff, N. S.
Duquette, D. J.
Ansell, George S.
Doremus, R. H.
Henry, Michael F.
Issue Date
1976-07
Keywords
Metallurgy
Degree
PhD
Terms of Use
This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
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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
Department
Dept. of Materials Science and Engineering
Publisher
Rensselaer Polytechnic Institute, Troy, NY
Relationships
Rensselaer Theses and Dissertations Online Collection
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