Creep of Single Crystal Nickel-Base Superalloy Tubes Under Biaxial Tension

[+] Author and Article Information
P. R. Paslay

Division of Engineering, Brown University, Providence, R. I.

C. H. Wells, G. R. Leverant, L. H. Burck

Advanced Materials Research and Development Laboratory, Pratt & Whitney Aircraft, Middletown, Conn.

J. Appl. Mech 38(3), 623-626 (Sep 01, 1971) (4 pages) doi:10.1115/1.3408864 History: Received May 25, 1970; Online July 12, 2010


An analysis of the statically indeterminate problem of the creep of a biaxially loaded, anisotropic hollow cylinder is presented. The anisotropy of the material leads to a nonuniform axial stress distribution which is evaluated by numerical techniques. Single crystal, tubular specimens of a nickel-base alloy were creep-tested at 1400 deg F with an <001> crystallographic axis nearly coincident with the tube axis in order to evaluate the theoretical analysis. Comparison of predicted and measured creep rates shows fair agreement.

Copyright © 1971 by ASME
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