Creep response in a rotating disc made of anisotropic Al-SiC(particle) composite having linearly varying thickness has been carried out using anisotropic Hoffman yield criterion in present study. The steady state creep behavior is described by Sherby’s constitutive model. The material parameters characterizing difference in yield stresses have been used from the available experimental results i...

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...

alloy 718 (IN 718) were characterized to identify processing-microstructure-property relationships. The alloy was sequentially cold rolled (CR) to 0, 10, 20, 30, 40, 60, and 80 pct followed by annealing at temperatures between 954 °C and 1050 °C and the traditional aging schedule used for this alloy. In addition, this alloy can be superplastically formed (IN 718SPF) to a significantly finer gra...

Constellations of Synthetic Aperture Radar (SAR) satellites with short repeat time acquisitions allow exploration of active faults behavior with unprecedented temporal resolution. Along the North Anatolian Fault (NAF) in Turkey, an 80 km long section has been creeping at least since the 1944, Mw 7.3 earthquake near Ismetpasa, with a current Interferometric Synthetic Aperture Radar (InSAR)-deriv...

To understand general properties of creep failure with healing effects, we study a mean-field fiber bundle model probabilistic rupture and rejoining processes. The dynamics the is determined by two factors: bond breaking formation new bonds. Steady states are realized due to balance between beyond critical factor, below which breaks completely. Correlation fluctuating value strain generated in ...

Creep behavior of the weldment a new type martensitic heat-resistant steel 12Cr10Co3W2MoNiVNbNB joined with vacuum electron beam welding is studied employing nano-indentation technique at room temperature. Different load-displacement curves are obtained for base metal, heat affected zone (HAZ) and weld metal welded joint. The creep displacement exhibits sharp rise first, then rate continuously ...