Laser ultrasound technique applied in material characterization of thermally sprayed nickel aluminum coatings

2012 ◽  
Author(s):  
C. H. Yeh ◽  
C. H. Yang ◽  
W. T. Hsiao ◽  
C.-Y. Su
Keyword(s):  
Material Characterization ◽  
Laser Ultrasound ◽  
Nickel Aluminum ◽  
Ultrasound Technique ◽  
Aluminum Coatings ◽  
Thermally Sprayed

Characterization of Roll-Cladded Aluminum Plates With Laser-Based Surface-Acoustic-Wave Measurements

2021 ◽  
Author(s):  
Clemens Grünsteidl ◽  
Georg Watzl ◽  
Christian Kerschbaummayr ◽  
Edgar Scherleitner ◽  
Günther Mayr ◽  
...  
Keyword(s):  
Optimization Procedure ◽  
Guided Wave ◽  
Laser Ultrasound ◽  
Ultrasound Technique ◽  
Wave Measurements ◽  
Dispersion Data ◽  
Free Parameters ◽  
Aluminum Plates ◽  
Non Destructive

Abstract We investigated roll-cladded aluminum structures consisting of a layer of Al4045 on Al3003 with a non-destructive laser-ultrasound technique. We determined the thickness of the cladding layer based on the dispersion of the fundamental guided wave propagating along the surface. We analyzed eight surfaces, with cladding thicknesses ranging from 0 to approximately 400μm The inversion of the dispersion data to obtain the thickness yielded in consistent results, which we compare to reference values obtained from micrographs. For the optimization procedure we allowed the material properties to be free parameters, but constrained them to be equal for all samples.

Manufacture and Characterization of Particle Reinforced Aluminum Coatings

1996 ◽  
Author(s):  
B. Wielage ◽  
M. Zschunke ◽  
A. Henker ◽  
S. Steinhäuser
Keyword(s):  
Wear Resistance ◽  
Aluminum Alloys ◽  
Fatigue Wear ◽  
Vacuum Plasma Spraying ◽  
Aluminum Coatings ◽  
Vacuum Plasma ◽  
Oxide Particles ◽  
Short Time ◽  
Thermally Sprayed

Abstract For reasons of the decrease in weight in the industry light cage design materials like aluminum alloys are frequently used. Because the wear resistance of aluminum alloys and/or aluminum generally is not sufficient, an increased wear resistance can be reached by means of particle reinforced aluminum coatings. The installation of ceramic reinforcing components (for example oxide particles) in the ductile metal matrix brings an essential improvement of the wear resistance particularly with regard to abrasion and short time fatigue wear. The results presented in the paper refer to research works concerning thermally sprayed Al - coatings with Al2O3- and SiC - particles as reinforcement components by vacuum plasma spraying.

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