Results 271 to 280 of about 7,958 (294)

Modeling the minimum creep rate of discontinuous lamellar- reinforced composites

Metallurgical and Materials Transactions A, 1995
An analytical model has been developed to predict the creep rate of discontinuous lamellar-reinforced composites in which both phases plastically deform. The model incorporates effects associated with lamellar orientation relative to the uniaxial stress axis.
Michael F. Bartholomeusz, John A. Wert
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Minimum-creep-rate behavior of polycrystalline vanadium from 0.35 to 0.87 Tm

Acta Metallurgica, 1971
Abstract The minimum-creep-rate behavior of polycrystalline vanadium was investigated over the temperature range of 477–1600°C (0.35–0.87 T m ). The uncorrected or apparent activation energy for creep was found to increase linearly with temperature from 56 to 121 kcal/mole over this temperature range as the stress was decreased from 14.7 to 0 ...
K.R Wheeler, E.R Gilbert, F.L Yaggee, S.A Duran   +3 more
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Relationship between minimum creep rate and time to fracture for 2:%Cr-1%Mosteel

Metal Science, 1978
Abstract Plain carbon and low alloy ferritic steels are used extensively in modern electrical power generation plant for components which operate at elevated temperatures, ∼ 0.5T M, and low stresses where creep is the major deformation mode.
D. Lonsdale, P. E. J. Flewitt
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Strain Relaxation and Recovery Test (SRRT) on Waspaloy for Measuring Irreversible Strain Rate Equivalent to Minimum Creep Rate

Canadian Aeronautics and Space Journal, 2003
is shown that the stress dependence of the irreversible, average viscous strain rate during decelerating (primary) creep measured by the Strain Relaxation and Recovery Test (SRRT), from 725 to 315 MPa, corresponds well with that of the minimum creep rate in the stress range 650450 MPa for forged nickel-based Waspaloy at 732 °C (0.62Tm).
N K Sinha, T. Terada, P. Au
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Minimum Creep Rate From Primary Creep Using SRRT

2009
unclassified
Sinha, Nirmal K., Terada, Tak, Au, P.
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On the nature of the minimum creep rate – time correlation for soil, ice, and frozen soil

Canadian Geotechnical Journal, 1983
This technical note examines the nature and consequences of the linear correlation observed between the logarithm of the minimum creep rate, [Formula: see text] and the logarithm of the time to reach this minimum creep rate, tm, in soil, ice, and frozen soil.
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Stress Exponent of Minimum Creep Rate of Single Crystal Nickel-Based Superalloy, CMSX-4, AT 1273K

Materials Science Forum, 2007
The stress exponent of the minimum creep rate, the n value, of a single crystal nickel-based superalloy, CMSX-4, was investigated by conducting the creep tests in a wide stress range at 1273K. At stresses more than 250MPa, the n value was defined as about 7. However, the n value decreased with decreasing stress and reached to 3 in the stress range from
Y. Kondo, N. Miura, Takashi Matsuo
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Analysis of the effect of friction stir welding on the minimum creep rate of an Mg–3% Al–1% Zn alloy

Scripta Materialia, 2011
The creep response of a magnesium alloy friction stir welded joint has been investigated. The creep rates at 100 and 200 °C were lower in the cross-weld samples than in the base material. At 300 °C the creep rates of the welded samples overlap those obtained in the base material.
SPIGARELLI, Stefano, Regev, M., EL MEHTEDI, Mohamad, Quercetti G., CABIBBO, MARCELLO   +4 more
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Minimum strain rate and primary transient creep analysis of a fine structure orthorhombic titanium aluminide

Scripta Materialia, 1996
The purpose of the present paper is to present a preliminary analysis of the primary transient creep behavior of an orthorhombic titanium aluminide having a very fine microstructure. In order to analyze and understand the creep behavior within the primary transient regime it is necessary to understand the mechanisms controlling deformation within the ...
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<p>The Design of New Minimum Creep Rate and Stress Function Under Creep Condition For Low Cr Alloys</p>

SSRN Electronic Journal
This paper addressed the design of a new function of minimum creep rate and stress function as a part of the original research work for the development of a set of creep damage constitutive equations. Firstly, the experimental data about the minimum creep strain rate and a wider range of stress were collected from literature; Secondly, the existing ...
Qiang Xu, Qihuan Xu, Zhongyu Lu
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