scholarly journals Investigation Into the Cause of Failure of a Turboprop Impeller in Service

1985 ◽  
Author(s):  
H. Y. Wong
Keyword(s):  
Electron Microscopy ◽  
Fatigue Fracture ◽  
Low Pressure ◽  
Energy Dispersive ◽  
Energy Dispersive Analysis ◽  
Electron Fractography ◽  
X Ray ◽  
Dispersive Analysis ◽  
Transmission Electron ◽  
Cause Of Failure

A 2-stage centrifugal flow turboprop Dart engine failed recently in service due to the failure of the low pressure impeller. Examination by various techniques including electron microscopy based on scanning, energy dispersive analysis of x-ray and transmission electron fractography indicates that the cause was metallurgical in nature, resulting from a material manufacturing defect followed by fatigue fracture and finally by tensile rupture of the material.

Fatigue Fracture of AM Inconel 718: Surface Effects on Tension-Torsion Capability

2021 ◽  
Author(s):  
Jacob Rome ◽  
Vinay K. Goyal ◽  
Dhruv Patel ◽  
Julian Lohser
Keyword(s):  
Fatigue Fracture ◽  
Inconel 718 ◽  
Surface Effects

scholarly journals Experimental Study and Modeling of the Fatigue Fracture of High-Strength FeMnSi-based Shape Memory Alloy

2020 ◽  
Vol 28 ◽  
pp. 2110-2117
Author(s):  
Fedor S. Belyaev ◽  
Margarita E. Evard ◽  
Eugeny S. Ostropiko ◽  
Aleksandr E. Volkov
Keyword(s):  
Experimental Study ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Fatigue Fracture ◽  
High Strength
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