Constitutive Equation Describing Tertiary Creep of a Modified 9Cr-1Mo Steel
نویسندگان
چکیده
منابع مشابه
Analyzing the characteristics of the cavity nucleation, growth and coalescence mechanism of 9Cr-1Mo-VNb steel (P91) steel
Creep damage is one of the serious problems for the high temperature industries and computational approach (such as continuum damage mechanics) has been developed and used, complementary to the experimental approach, to assist safe operation. However, there are no ready creep damage constitutive equations to be used for predicting the lifetime for this type of alloy, particularly for low stress...
متن کاملInfluence of Coincidence Site Lattice Boundary on Creep Resistance of P91 Steel Weldments
The grain boundary structure is usually described by the coincidence site lattice (CSL) model based on the misorientation of adjoining crystals. Therefore, the objective of the present investigation is to seek the correlation between CSL fraction and creep resistance of modified 9Cr–1Mo steel (P91) with and without boron addition. Results showed that CSL fraction increases with increase in heat...
متن کاملUniversity of Huddersfield Repository Analyzing the Characteristics of the Cavity Nucleation, Growth and Coalescence Mechanism of 9cr-1mo-vnb Steel (p91) Steel
Creep damage is one of the serious problems for the high temperature industries and computational approach (such as continuum damage mechanics) has been developed and used, complementary to the experimental approach, to assist safe operation. However, there are no ready creep damage constitutive equations to be used for predicting the lifetime for this type of alloy, particularly for low stress...
متن کاملAn anisotropic tertiary creep damage constitutive model for anisotropic materials
When an anisotropic material is subject to creep conditions and a complex state of stress, an anisotropic creep damage behavior is observed. Previous research has focused on the anisotropic creep damage behavior of isotropic materials but few constitutive models have been developed for anisotropic creeping solids. This paper describes the development of a new anisotropic tertiary creep damage c...
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Background—The creep-fatigue properties of stainless steel 316 are of interest because of the wide use of this material in demanding service environments, such as the nuclear industry. Need—A number of models exist to describe creep-fatigue behaviours, but they are limited by the need to obtain specialized coefficients from a large number of experiments, which are time-consuming and expensive. ...
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ژورنال
عنوان ژورنال: Tetsu-to-Hagane
سال: 1998
ISSN: 0021-1575,1883-2954
DOI: 10.2355/tetsutohagane1955.84.8_553