Creep strength and minimum strain rate estimation from Small Punch Creep tests [PDF]
Materials Science and Engineering: A, 2018 A new standard is currently being developed under the auspices of ECISS/TC 101 WG1 for the small punch testing technique for the estimation of both tensile and creep properties. Annex G of the new standard is covering the assessment and evaluation of small punch creep (SPC) data. The main challenge for estimating uniaxial creep properties from SPC data
Holmström, S. +18 more
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On the development of creep damage constitutive equations: a modified hyperbolic sine law for minimum creep strain rate and stress and creep fracture criteria based on cavity area fraction along grain boundaries [PDF]
Materials at High Temperatures, 2017 Abstract: This paper reports 1) the latest development and application of modified hyperbolic sine law for minimum creep strain rate and stress for both low Cr and high Cr steels, and 2) the development of creep fracture criterion based on cavity area fraction along grain boundary for high Cr steel.
Qiang Xu, Xin Yang, Zhongyu Lu
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Small Two-Bar Specimen Creep Testing of Grade P91 Steel at 650°C [PDF]
High Temperature Materials and Processes, 2016 Commonly used small creep specimen types, such as ring and impression creep specimens, are capable of providing minimum creep strain rate data from small volumes of material. However, these test types are unable to provide the creep rupture data. In this
Ali Balhassn S. M., Hyde Tom H., Sun Wei
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Investigation of minimum creep rates and stress exponents calculated from tensile and compressive creep data of magnesium alloy AE42 [PDF]
Materials Science and Engineering: A, 2009 Abstract Creep specimens prepared of magnesium alloy AE42 were investigated under constant load in compressive and in tensile creep. Material was cast via the squeeze casting process in order to obtain a dense microstructure without pores. Creep tests were performed at constant temperatures between 150 °C and 240 °C and constant applied stresses ...
Dieringa, H., Hort, N., Kainer, K.U.
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Creep deformation behaviour of Rhenium free Ni-based single crystal superalloys LSC-15
MATEC Web of Conferences, 2014 In this paper, creep deformation behavior of Ni-based single crystal superalloys LSC-15 were studied. LSC-15 does not include Rhenium and has been developed by IHI Corporation Japan.
Tsuno Nobuyasu, Takahashi Satoshi
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ISIJ International, 2012 The stress exponent of the minimum creep rate, n, and the activation energy of creep, Qc, were obtained for the oxide dispersion-strengthened nickel-based superalloy MA754 by conducting creep tests at 1223–1273 K in the stress range of 130–190 MPa. The values of n and Qc in MA754 were determined to be 26 and 962 kJ/mol, respectively.
Miura, Nobuhiro +4 more
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Application of a Modified Hyperbolic Sine Law for Modeling Minimum Creep Rate of 2.25Cr-1.6W
The creep damage and the need of modelling minimum creep rate is introduced, and recent research activities reviewed. To improve the accuracy and simplify the prediction of minimum creep rate, a modified hyperbolic sine law was chosen to model the minimum creep rate of 2.25Cr-1.6W with temperature from 773K to 923K and stress from 60MPa to 360MPa.
Feng, Shenhao, Lu, Joan, Xu, Qiang
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Is minimum creep rate a fundamental material property?
, 1990 Ice engineering problems require solutions in terms of specific design stress, strain or damage limits. Engineers must know the interdependence between stress, strain, damage state and time for a given ice body at a given temperature distribution and loading history.
Sinha, N. K.
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Influence of High Pressure Sliding and Rotary Swaging on Creep Behavior of P92 Steel at 500 °C
Metals, 2021 High-pressure sliding (HPS) and rotary swaging (RS) at room temperature were used to form severely deformed microstructures in martensitic creep-resistant P92 steel.
Petr Kral +8 more
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A viscoelastic Rivlin-Ericksen material model applicable to glacier ice [PDF]
Nonlinear Processes in Geophysics, 2010 We present a viscoelastic constitutive relation which describes transient creep of a modified second grade fluid enhanced with elastic properties of a solid.
P. Riesen, K. Hutter, M. Funk
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