2008
DOI: 10.4028/www.scientific.net/kem.384.75
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Thermal Spraying of Wear and Corrosion Resistant Surfaces

Abstract: Thermal spraying is one of the most variable and diverse surface coating techniques concerning materials to be processed as well as possible geometries to be coated. The group of thermal spray processes covers a large parameter field to combine nearly each coating with each base material. Thermally sprayed coatings can be applied very evenly and therefore allow to be applied on final-shaped components. Otherwise, if further treatment or finishing is necessary, thermal spray coatings can be processed by grindin… Show more

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Cited by 5 publications
(4 citation statements)
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“…In comparison, thermal spraying introduces less heat during the process and is less limited in terms of component dimensions [ 7 ]. Nevertheless, thermal sprayed coatings have higher porosity than galvanic coatings, a lamellar structure and thermally or kinetically induced residual stresses [ 8 ]. Compressive residual stresses are beneficial and increase the fatigue strength of components, while tensile residual stresses lead to degradation [ 9 ].…”
Section: Introductionmentioning
confidence: 99%
“…In comparison, thermal spraying introduces less heat during the process and is less limited in terms of component dimensions [ 7 ]. Nevertheless, thermal sprayed coatings have higher porosity than galvanic coatings, a lamellar structure and thermally or kinetically induced residual stresses [ 8 ]. Compressive residual stresses are beneficial and increase the fatigue strength of components, while tensile residual stresses lead to degradation [ 9 ].…”
Section: Introductionmentioning
confidence: 99%
“…For the thermal spraying process, the dimensions of the parts to be coated are not limited and the heat supplied is lower than provided during galvanization [10]. The thermal spraying process produces coatings with higher porosity than galvanic coatings, a lamellar structure, and residual stresses [11]. Residual stresses can be introduced thermally or kinetically, whereas high temperatures lead to tensile residual stresses that reduce the fatigue strength of components and higher kinetic energy results in compressive stresses, which are known as beneficial for fatigue strength [12,13].…”
Section: Introductionmentioning
confidence: 99%
“…Disadvantages of thermally sprayed coatings compared to galvanic coatings include often-higher porosities [11], heterogeneous compositions, lamellar layered microstructures, and thermally or kinetically induced residual stresses. Depending on the inherent process characteristics, the induced residual stresses include tensile residual stresses [12] in the case of higher temperatures, and compressive residual stresses [13] in case of higher kinetic energy process types.…”
Section: Introductionmentioning
confidence: 99%