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High temperature inelastic deformation under uniaxial loading - Theory and experimentThe elevated-temperature uniaxial inelastic deformation behavior of an Ni-base alloy, B1900 + Hf, is investigated by performing isothermal tensile, creep, cyclic, stress relaxation, and thermomechanical fatigue tests. The range of strain rates examined is from 10 to the -7th to 100 per sec, while the test temperatures range from 25 to 1093 C. This extensive constitutive data base has been used for evaluating the unified constitutive models of Bodner and Partom (1972) and of Walker (1972) which apply for the small-strain regime. Comparison of test results with independent model predictions indicates good agreement over a broad range of loading conditions, demonstrating the applicability of the unified-constitutive-equation approach for describing the strongly nonlinear and temperature-dependent response of meals under a wide range of deformation and thermal histories. Thus the results give confidence that the unified approach is an effective and efficient approach in which complex history-dependent thermoviscoplastic flow can be represented within a single inelastic strain-rate term.
Document ID
19900026783
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chan, K. S.
(Southwest Research Inst. San Antonio, TX, United States)
Lindholm, U. S.
(Southwest Research Institute San Antonio, TX, United States)
Bodner, S. R.
(Technion - Israel Institute of Technology Haifa, United States)
Walker, K. P.
(Engineering Science Software, Inc. Smithfield, RI, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1989
Publication Information
Publication: ASME, Transactions, Journal of Engineering Materials and Technology
Volume: 111
ISSN: 0094-4289
Subject Category
Metallic Materials
Accession Number
90A13838
Funding Number(s)
CONTRACT_GRANT: NAS3-23925
Distribution Limits
Public
Copyright
Other

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