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Advanced Microstructures for Increased Creep Rupture Strength of MARBN Steels
Materials Science Forum, 2014Over the past three decades a lot of effort was made to optimize the chemical compositionof 9% Cr martensitic steels, aiming to increase the operating temperature up to 923K and thus im-proving the efficiency of thermal power plants. Under these service conditions (high temperature andstress exposure), the creep strength of such steels is closely ...
Ernst Plesiutschnig +5 more
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Kinetic physical phenomenological model of creep-rupture strength of metals
Journal of Applied Mechanics and Technical Physics, 2017A kinetic model of creep-rupture strength is constructed using the physicomathematical theory of irreversible strains of metals. An algorithm for the mathematical modeling of the processes occurring during tension of samples is proposed. Results of experimental verification of a uniaxial model of creep-rupture strength are given.
V. M. Greshnov +2 more
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Strength of Materials, 1973
1. The creep equation expressed in energy terms (7) enables us to describe the creep process in a nonstrengthening material (or one undergoing only slight strengthening, such as the alloy OT-4 at 400 °C) from the onset of creep up to the point of rupture under both steady-state and transient temperature/force conditions. 2.
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1. The creep equation expressed in energy terms (7) enables us to describe the creep process in a nonstrengthening material (or one undergoing only slight strengthening, such as the alloy OT-4 at 400 °C) from the onset of creep up to the point of rupture under both steady-state and transient temperature/force conditions. 2.
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Creep-rupture strength of a Ni-base superalloy at 1400 K
Scripta Metallurgica et Materialia, 1993While NASAIR 100 is not the strongest of elevated-temperature single-crystal alloys, its higher-temperature properties are indicative of this technology's behavior. Attention is presently given to test results for this alloy which illuminate its 1400 K creep failure properties in air, and furnish a benchmark for the comparison of advanced materials to ...
J.Daniel Whittenberger +2 more
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Strength of Materials, 1992
Stochastic rheological equations and an energy criterion of failure are proposed, making it possible to establish both the laws of distribution of inelastic deformation during creep and time for failure on the basis of the Monte Carlo method. A method of identifying stochastic and deterministic parameters of the model from the results of uniaxial tests
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Stochastic rheological equations and an energy criterion of failure are proposed, making it possible to establish both the laws of distribution of inelastic deformation during creep and time for failure on the basis of the Monte Carlo method. A method of identifying stochastic and deterministic parameters of the model from the results of uniaxial tests
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Creep and rupture strength with a nonuniform stress state
Strength of Materials, 1982V. S. Strelyaev +2 more
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Creep-rupture strength and high-temperature creep of nickel-based superalloy ZhS-6U
2008The characteristics of high-temperature creep and creep-rupture strength of cast nickel-based superalloy ZhS-6U have been studied with the test duration 100 hrs in the temperature range from 950 to 1050°C.
Bukhanovskii, V. V. +2 more
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Creep Rupture Strength Evaluation With Region Splitting by Half Yield
Volume 6A: Materials and Fabrication, 2013Creep strength of ferritic and austenitic steels has been investigated on the correlation between stress vs. creep rupture life curve and 50% of 0.2% offset yield stress (half yield) at the temperatures. Inflection of stress vs. creep rupture life curve was recognized on ferritic creep resistant steels with martensitic or bainitic microstructure ...
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Creep and stress-rupture strength of molybdenum at high temperatures
Strength of Materials, 1970E. E. Zelenyuk, V. V. Krivenyuk
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