Crack Initiation in Ni|Based Single Crystal Superalloy under ...

Crack Initiation in Ni-Based Single Crystal Superalloy under ... - MDPI

After the initiation of the crack from the surface oxide layer, it barely grows into the matrix, while the rapid growth of the oxide crack into the matrix leads ...

Crack Initiation in Ni-Based Single Crystal Superalloy under Low ...

Abstract. The mechanism of oxidation-assisted initiation of surface cracks of a fourth-generation Ni-based single crystal superalloy was ...

Crack paths in single-crystal Ni-base superalloys under isothermal ...

Fatigue crack paths in single-crystal Ni-base superalloys do not follow the classical Stage I/Stage II behavior. •. Cracks often initially grow in Mode I ...

Mechanistic fatigue in Ni-based superalloy single crystals: A study of ...

The stages of nucleation and short crack growth comprise the crack initiation process, with long crack growth occurring in the later stages of fatigue life, ...

Crack growth in single crystal nickel base superalloys under ... - DiVA

A compliance based method for the evaluation of crack opening force under thermomechanical fatigue conditions was developed, in order to enable ...

(PDF) Prediction of crack initiation in single crystal Ni-base ...

... nickel base single crystal superalloy under multiaxial loading. Dec 2000. P Boubidi. Boubidi, P., "Experimental characterization and numerical ...

Crack Initiation in Ni-Based Single Crystal Superalloy under ... - OUCI

The mechanism of oxidation-assisted initiation of surface cracks of a fourth-generation Ni-based single crystal superalloy was systematically investigated ...

Crack growth in a single crystal superalloy at elevated temperature

Dislocations within the crack tip plastic zone are contained within the matrix, and crack propagation occurs primarily within the γ matrix by plasticity- ...

Computational modelling of crack initiation in a single crystal ...

Crack initiation in a single crystal nickel base superalloy was studied under ... crack initiation was predicted using a strain ratchetting based ...

Crystal plasticity finite‐element modelling of cyclic deformation and ...

Crystal plasticity finite-element modelling of cyclic deformation and crack initiation in a nickel-based single-crystal superalloy under low- ...

Modelling of Crack Growth in Single-Crystal Nickel-Base Superalloys

This model is based on the evaluation of appropriate crack driving forces using three-dimensional finite element simulations. A special focus ...

(PDF) Computational modelling of crack initiation in a single crystal ...

Abstract: Crack initiation in a single crystal nickel base superalloy was studied under fatigue–oxidation conditions, using a crystallographic constitutive ...

Crystallographic crack propagation rate in single-crystal nickelbase ...

Single-crystal nickel-base superalloys are often used in the hot sections of gas turbines due to their good mechanical properties at high temperatures such as ...

Initiation and growth of short cracks in a nickel-based single crystal

In-situ fatigue experiments within a scanning electron microscope ... Initiation and growth of short cracks in a nickel-based single crystal superalloy.

Crack paths in single-crystal Ni-base superalloys under isothermal ...

Forsyth, A two stage process of fatigue crack growth, с. 76; Telesman, The unusual near-threshold FCG behavior of a single crystal superalloy and the ...

[PDF] Crack growth in single crystal nickel base superalloys under ...

This work concerns the fatigue crack growth behaviour of nickel base single crystal superalloys. The main industrial application of this class of materials ...

(PDF) A coupled kinetic-constitutive approach to the study of high ...

... crack initiation in single crystal nickel-base superalloys. Profile image of ... single crystal superalloy at high temperature under low-cycle fatigue loading.

The Growth of Small Cracks in the Single Crystal Superalloy CMSX ...

behaviour of technical cracks in single crystal Ni-base super- alloys ... the crack initiation point or the initiaI stage of crack growth (see Figure 4) ...

[PDF] Strain accumulation and fatigue crack initiation at pores and ...

Initiation of Fatigue Cracks in a Single-Crystal Nickel-Based Superalloy at Intermediate Temperature · Materials Science, Engineering · 2020.

Crack Initiation Mechanisms in Very High Cycle Fatigue at High ...

... Single Crystal Superalloys : Transition from Internal Sites to the Surface. ... Ni-based SX superalloys under LCF and VHCF conditions. It was ...