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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Tuominen, J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023Coaxial Wire Laser-based Additive Manufacturing of AA7075 with TiC Nanoparticlescitations
- 2016Microstructural and abrasion wear characteristics of laser-clad tool steel coatingscitations
- 2016CMT - Nordic business opportunities from coating and additive manufacturing
- 2015Microstructural and abrasion wear characteristics of tool steel coatings manufactured by laser cladding
- 2015High performance wear and corrosion resistant coatings by novel cladding techniques
- 2015Fatigue behaviour of nickel- and cobalt-based laser cladded coatings on steel bars
- 2015Wear and corrosion resistant laser coatings for hydraulic piston rodscitations
- 2014Fatigue behavior of laser clad round steel barscitations
- 2013Stress raising in laser clad components depending on geometry and defects
- 2012Laser cladding with coaxial wire feeding
- 2012In vitro behaviour of three biocompatible glasses in composite implantscitations
- 2009Engineering coatings by laser cladding - the study of wear and corrosion properties
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article
Fatigue behavior of laser clad round steel bars
Abstract
Laser cladding is an overlay welding method to manufacture high performance, fusion bonded metal, and metal matrix composite coatings on metallic substrates with low dilution. Owing to steep thermal gradients, rapid solidification, and possible mismatch in coefficients of thermal expansion between the coating and the substrate, laser cladding induces large tensile residual stresses in coating layer, potentially affecting the service life of clad component under external load-induced stresses. In this study, four-point bending and torsion fatigue tests were conducted on relatively large round laser clad steel bars to determine the effect of laser cladding on fatigue strength. Quenched and tempered 42CrMo4 steel clad with Inconel 625 and S355 structural steel clad with Stellite 21 were subjected to various stress levels for relatively large number of cycles with and without postweld heat treatment (PWHT). The results indicated that Stellite 21 decreased the fatigue life of S355 at all the applied loads, whereas Inconel 625 increased the fatigue life of 42CrMo4 at high loads but decreased at low loads. Applied PWHT did not show any positive influence on fatigue life.