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Creep Failure Behavior of Creep-Strength Enhanced Ferritic Steels
Experience With Creep-Strength Enhanced Ferritic Steels and New and Emerging Computational Methods, 2004Creep-strength enhanced ferritic steels such as Gr.92, Gr.122, Gr.23 and Gr.91 have recently been introduced for power plant applications, and some of these have experienced creep failure in boiler tubes and thick wall components after several years of operation.
F. Masuyama, N. Komai
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Journal of Basic Engineering, 1972
In this paper a method is presented for correlating the creep and rupture strengths of a wide variety of commercial alloys. The ultimate aim of this correlation is to predict design creep properties from rupture data alone. This is of considerable interest because rupture parameter or isothermal rupture curves are frequently the only data available ...
R. M. Goldhoff, R. F. Gill
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In this paper a method is presented for correlating the creep and rupture strengths of a wide variety of commercial alloys. The ultimate aim of this correlation is to predict design creep properties from rupture data alone. This is of considerable interest because rupture parameter or isothermal rupture curves are frequently the only data available ...
R. M. Goldhoff, R. F. Gill
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The creep strength of the Earth's mantle
Reviews of Geophysics, 1970In this paper we show that it is probable that at stresses greater than about 10−2 bar creep in the earth's mantle is caused by dislocation motion rather than by the mass transport of atoms through diffusion from one grain boundary to another. The latter process leads to Nabarro‐Herring creep.
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Predicting creep strengths and lifetimes of creep resistant engineering alloys
Metals and Materials International, 2018The physical basis for predicting the long-term creep strengths and lifetimes at application temperatures using creep parameters determined from short-term creep tests is investigated for complex creep resistant engineering alloys. It is shown that the seemingly unpredictable stress and temperature dependence of minimum creep rate of such alloys can be
Yanrong Zhao +4 more
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Creep deformation properties of creep strength enhanced ferritic steels
Transactions of the Indian Institute of Metals, 2010Creep deformation properties of creep strength enhanced ferritic steels were investigated. Good linear relationships between creep strain vs. time and creep rate vs. time were observed within a transient stage in a double logarithmic plot. It was appropriately expressed by a power law rather than exponential law, logarithmic law and Blackburn’s ...
Kazuhiro Kimura +2 more
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On the prediction of long term creep strength of creep resistant steels
International Journal of Materials Research, 2016Abstract When the conventional power law creep equation is applied to rationalise the creep data of creep resistant steels, its parameters depend strongly on stress and temperature and hence cannot be used to predict long term creep properties.
Mi Yang +4 more
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Study on Creep Strength Test of High-Strength Geogrid
2009In this paper, indoor creep test under unconfined conditions was conducted for two typical types of high-strength geogrid, one of which was applied to practical roadbed engineering, where creep observation is taken for a continuous year. Test result shows that creep rate under unconfined conditions is almost 2 times of that under confined conditions if
Q. R. Yan, W. D. Deng, C. Z. Deng
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Modelling of Creep in High Strength Concrete
Creep is the time dependent deformation of concrete induced by sustained stress. Several different prediction models are currently used throughout the world, however little is known about their ability to predict creep in high strength concretes. Several of these models were designed to be used on normal strength concretes.openaire +4 more sources
Modelling creep of high strength concrete
Computers & concrete, 2010Recent developments in concrete mixing made possible the production of concretes with high compressive strength showing, simultaneously, high workability. These concretes also present high strengths at young ages, allowing the application of loads sooner.
D. Dias-da-Costa, E.N.B.S. Julio
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Creep of high–strength concrete and normal–strength concrete
Magazine of Concrete Research, 1991The development and use of high–strength concrete has been evolutionary. High–strength concrete is used for tall buildings, bridges, long–span structures and offshore platforms. Very little information is available on the creep of high–strength concrete compared with that of normal concrete at room and low temperatures.
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