Crack growth in ordered alloys

Authors
Kuruvilla, A.K.
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Other Contributors
Stoloff, N. S.
Ficalora, P.J.
Nippes, E. F. (Ernest Frederick)
Wright, Roger N.
Liu, C. T.
Issue Date
1985-05
Keywords
Materials engineering
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.
Full Citation
Abstract
The influence of order on fatigue crack propagation in an (Fe,Ni)₃V alloy (which orders into an Ll₂ structure) and an FeCo-2%V alloy (which orders into a B2 structure) has been studied. By virtue of decreased cross slip and increased planarity of slip, ordering would be expected to enhance the resistance of alloys to fatigue crack propagation. Ordering did lead to a decrease in the rate of crack propagation in the ductile (Fe,Ni)₃V alloy whereas crack propagation rates were enhanced by the onset of order in the FeCo-V alloy. This behavior is explained on the basis of order-induced dislocation structure and consequent slip behavior in these alloys.
Description
May 1985
School of Engineering
Department
Dept. of Materials engineering
Publisher
Rensselaer Polytechnic Institute, Troy, NY
Relationships
Rensselaer Theses and Dissertations Online Collection
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