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

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

Since single-crystal Ni-base superalloys have no grain boundary strengthening elements, cracks easily propagate along the softer deformation-induced ...

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

Introduction. One of the notable observations of fatigue crack paths in single-crystal Ni-base superalloys is crystallographic crack growth, characterized by ...

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. In fact, the opposite often occurs with ...

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

Fatigue crack growth testing has been performed, both using conventional isothermal testing methods and also using thermomechanical fatigue ...

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

List of references · Telesman, The unusual near-threshold FCG behavior of a single crystal superalloy and the resolved shear stress as the crack driving force, ...

[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 ...

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

Cracks in single-crystal nickel-base superalloys have been observed to switch cracking mode from Mode I to crystallographic cracking. The crack propagation rate ...

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

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

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

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

Crack-tip stress–strain fields in single crystal nickel-base ...

Crack-tip stress–strain fields in single crystal nickel-base superalloys at high temperature under cyclic loading. N. Marchal, S. Flouriot, S. Forest *, L ...

Characterization-and-modeling-of-thermo-mechanical-fatigue-crack ...

This research was conducted on PWA1484, a single crystal superalloy used by Pratt &. Whitney for turbine blades. Initially, an isothermal constant amplitude ...

Effects of rafting on the meso deformation and fracture behaviour of ...

Microstructural rafting of Ni-based single-crystal (SC) superalloys is inevitable at elevated temperatures during long-term service with ...

lcf-and-tmf-crack-growth-in-cast-nickel-based-superalloys ... - NET

In addition, previous studies within KME-. 403, KME-410 and KME- 502 have shown that the deformation in single-crystal materials is often very ...

Anisotropic thermomechanical fatigue of a nickel-base single-crystal ...

Neu, Crack paths in single-crystal Ni-base superalloys under isothermal and thermomechanical fatigue, Int J Fatigue, № 123, с. 268 https://doi.org/10.1016/j ...

Pore-induced defects during thermo-mechanical fatigue of a fourth ...

Oxygen changes crack modes of Ni-based single crystal superalloy ... Crack paths in single-crystal Ni-base superalloys under isothermal and ...

Thermal Cycling Creep Resistance Of Ni-Based Single Crystal ...

This paper reviews the non-isothermal creep resistance of Ni- based single crystal superalloys. For this, the creep resistance under very high temperature ...

Creep-fatigue behaviour of single-crystal Ni-base superalloy CMSX-8

Materials at High Temperatures. 33: 291-300. 30. Neu RW (2019) Crack paths in single-crystal Ni-base superalloys under isothermal and.

LOW CYCLE FATIGUE AND FRACTURE OF A COATED ...

... under isothermal LCF tests. ... single crystal and a polycrystalline nickel-base superalloys in [28]. ... polycrystalline nickel base superalloys SC16 and IN738LC ...

Effect of pre-exposure on crack initiation life of a directionally ...

resistance in single crystal (SC) and polycrystalline (PC) Ni-base superalloys because it introduces a high density of mobile disloca- tions [11–13]. At ...

N89-20 142 - NASA Technical Reports Server (NTRS)

crystal alloys and the fatigue crack initiation proc- ... aspects of single crystal superalloys. Cyclic ... - EVALUATION OF PATH-INDEPENDENT INTEGRALS UNDER.