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Article
Effects of rafting on the meso deformation and fracture behaviour of a Ni-based single crystal superalloy at room temperature: In-situ observation and simulation
Microstructural rafting of Ni-based single-crystal (SC) superalloys is inevitable at elevated temperatures during long-term service with mechanical loading, which significantly affects the mechanical behaviour...
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Article
Effects of inclusions on dislocation behavior during deformation process of dissimilar steel-welded joints using acoustic emission and transmission electron microscopy
Dissimilar welded joints are widely used, and the research on their deformation mechanism is of great significance. Effects of inclusions on dislocation behavior during deformation process of dissimilar steel-...
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Article
A reduced-order method for parameter identification of a crystal plasticity model considering crystal symmetry
The focus of this paper is to identify the material parameters of a crystal plasticity model for Ni-base single crystal superalloys. To facilitate the stepwise calibration of the multistage flow rules, further...
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Article
Experimental study and numerical modeling of the damage evolution of thermal barrier coating systems under tension
This study investigated the damage evolution (i.e., formation of vertical cracks, transformation of vertical cracks to interfacial crack and delamination) of thermal barrier coating systems under tension by us...
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Article
Effect of high temperature on compression property and deformation recovery of ceramic fiber reinforced silica aerogel composites
Ceramic fiber reinforced silica aerogel composites are novel insulation materials in the thermal protection field for hypersonic vehicles. Before the aerogel composites are applied in load-bearing structures, ...
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Article
Unified modeling of high temperature deformations of a Ni-based polycrystalline wrought superalloy under tension-compression, cyclic, creep and creep-fatigue loadings
The complex deformation behaviors under tension-compression, cyclic, creep and creep-fatigue loadings of a nickel-base polycrystalline wrought superalloy at 650°C and 700°C were experimentally investigated. To...
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Article
A simple unified critical plane damage parameter for high-temperature LCF life prediction of a Ni-based DS superalloy
A simple unified critical plane damage parameter (i.e., the modified resolved shear strain range ∆γ mod) based on a slip mechanism-related critical plane concept was proposed in this paper, integr...
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Article
A modern and robust methodology for modeling anisotropic creep characteristics of Ni-based DS and SC superalloys
According to more recent work, the Wilshire equations have shown good prediction accuracy in a wide range of materials and stress-temperature conditions, particularly in extrapolation of short term results to ...
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Article
Experimental investigation and numerical modeling for elasto-plastic notch-root stress/strain analysis under monotonic loadings
Experimental investigation and numerical modeling on elasto-plastic notch-root stress/strain distributions under monotonic loadings of both the Ni-based directionally solidified (DS) superalloy and Titanium al...
