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Critical experiments of the self-consistent model for polycrystalline Hastelloy-XA viscoplastic constitutive model is presented for the estimation of the overall mechanical response of Hastelloy-X polycrystalline metals from a knowledge of single crystal behavior. The behavior of polycrystal is derived from that of single crystals using a self-consistent formulation. The single crystal behavior which has been used was developed by summing postulated slip on crystallographic slip systems. The plasticity and creep are treated coupledly using unified viscoplastic model which includes the interaction effects between rapid and slow deformation at elevated temperature. The validity of the model is directly tested by experiments on Hastelloy-X in both single crystal and polycrystalline versions.
Document ID
19930037961
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shi, Shixiang
(Connecticut Univ. Storrs, United States)
Walker, Kevin P.
(Engineering Science Software, Inc. Smithfield, RI, United States)
Jordan, Eric H.
(Connecticut Univ. Storrs, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Modeling the deformation of crystalline solids; Proceedings of the Symposium, Annual Meeting of the Minerals, Metals & Materials Society, New Orleans, LA, Feb. 17-21, 1991 (A93-21951 07-26)
Publisher: Minerals, Metals & Materials Society
Subject Category
Metallic Materials
Accession Number
93A21958
Funding Number(s)
CONTRACT_GRANT: NAG3-512
CONTRACT_GRANT: DE-FG02-88ER-13894
Distribution Limits
Public
Copyright
Other

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