Results 101 to 110 of about 5,991 (129)

A Lightweight Classification Method Based on You Only Look Once Version 8 and Convolutional Block Attention for Scanning Electron Microscopy Images of Metal Fracture Surfaces

open access: yesCrystals
In the failure analysis of metallic materials, the observation of fracture-surface morphology by scanning electron microscopy (SEM) is an important means of determining the fracture mechanisms.
Zhihui Li   +5 more
doaj   +1 more source

Fractography, elastic modulus and oxidation resistance of novel metal-intermetallic Ni/Ni 3Al multilayer films [PDF]

open access: yes, 2002
Novel metal–intermetallic Ni/Ni3Al multilayer films are synthesized by a magnetron sputtering technique. The fractography, elastic modulus, and the oxidation resistance of the multilayer films are studied by a series of experimental tests.
Shen, H   +4 more
core  

Microstructural changes and tensile fractography of Al-6061 after solutionizing and aging

open access: yesMaterials Research Express
This study investigates the effect of two-step heat treatment on the microstructure, mechanical properties, and fracture behavior of Al6061 alloy. Four conditions were examined: as-received and three heat-treated samples subjected to solution heat ...
Saurabh Dewangan   +1 more
doaj   +1 more source

Textural fractography of fatigue failures under variable cycle loading

open access: yes, 2005
A new concept of counting time at fatigue processes is proposed, aimed to reach fractographic compatibility in cases of different loading sequences. Values of cycle effectivity are summarized to give the new reference time.
H Lauschmann (13713577)   +2 more
core  

Investigation of the Static and Dynamic Mechanical Properties of the Base Metal and Weld Zone of Haynes 25 Alloy [PDF]

open access: yesIranian Journal of Materials Science and Engineering
This work presents a comprehensive investigation of the high cycle fatigue behavior of Haynes 25 cobalt-based superalloy and its welds produced by pulsed continuous-wave (CW) laser welding.
Mahdi Behjati   +2 more
doaj  

Fractography and Crack Initiation of Very-High-Cycle Fatigue for a High Carbon Low Alloy Steel

open access: yes, 2006
Very-High-Cycle Fatigue (VHCF) is the phenomenon of fatigue damage and failure of metallic materials or structures subjected to 108 cycles of fatigue loading and beyond.
钱桂安, 周承恩, 洪友士
core   +1 more source

Bone Biomechanics and Fractography: Observing Trauma Characteristics in Cases from Past American Conflicts

open access: yes
This thesis explores the potential of bone fractography for use in examining skeletal trauma in burial recovery, such as in the frequent casework of the Defense Prisoner of War/Missing in Action Accounting Agency.
Cristino, Mack P.
core  

The Fractography of Bone: Impact of Flat Bone and the Story It Tells [PDF]

open access: yes
Fractography as a method for fracture analysis has been applied widely to materials that range from glass to ceramics and polymers of varying compositions. Very limited research has been done, however, to apply this knowledge of fractography and fracture
Mendoza, Brandon   +7 more
core  

Experimental and analytical estimates of fatigue crack closure in an aluminium-copper alloy 1: Laser interferometry and electron fractography

open access: yes, 1997
Results of an experimental estimation of the crack closure stress, using electron fractography and laser interferometry for CT specimens of an aluminium-copper alloy are presented in this paper. Crack closure stress was estimated at stress ratios of 0.1,
Ashbaugh, NE   +7 more
core  

Fractography of clinical failures of indirect resin composite endocrown and overlay restorations

open access: yesDental Materials, 2021
tObjectives. Compare failure modes and fracture origins using fractography on recovered clin-ically fractured parts of indirect resin composite endocrowns and overlay restorations onendodontically treated teeth (ETT).Methods. Four endocrowns (3 molars, 1
Susanne Scherrer   +2 more
exaly   +2 more sources

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