| People | Locations | Statistics |
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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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Pelcastre, Leonardo
Luleå University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024Effect of temperature on the tribological behavior of additively manufactured tool materials in reciprocating sliding against cemented carbidecitations
- 2024Friction and Wear in Hot Stamping: The Role of Tool and Workpiece Temperature and Tool Steel Compositioncitations
- 2024Role of various influencing parameters on high temperature fretting behaviour of different tribopairs in liquid leadcitations
- 2023On the low temperature tribological behaviour of brake block materials for railway applications under dry and icy conditionscitations
- 2023Development of a Laboratory-Scale Test Methodology for Performance Evaluation of Lubricants for Hot Stamping of an Aluminium Alloycitations
- 2023Development of a Laboratory-Scale Test Methodology for Performance Evaluation of Lubricants for Hot Stamping of an Aluminium Alloycitations
- 2023High temperature friction and wear of post-machined additively manufactured tool steel during sliding against AlSi-coated boron steelcitations
- 2022Influence of CeO2 and TiO2 Particles on Physicochemical Properties of Composite Nickel Coatings Electrodeposited at Ambient Temperaturecitations
- 2022The Influence of Ethynyl In-Chain Crosslinkers on the Properties of 6FDA-Based Polyimidescitations
- 2021Effect of surface engineered tool steel and lubrication on aluminium transfer at high temperaturecitations
- 2021Characterization of wear and friction between tool steel and aluminum alloys in sheet forming at room temperaturecitations
- 2021Influence of lubrication, tool steel composition, and topography on the high temperature tribological behaviour of aluminiumcitations
- 2021High temperature tribological studies on hardfaced tool steels for press hardening of Al-Si coated boron steelcitations
- 2021Influence of Lubrication, Tool Steel Composition and Topography on the High Temperature Tribological Behaviour of Aluminiumcitations
- 2021High temperature tribological behaviour of PVD coated tool steel and aluminium under dry and lubricated conditionscitations
- 2020The Effect of Carbon Black on the Properties of Plasticised Wheat Gluten Biopolymer
- 2019Tribological Behaviour of PVD Coated Tool Steels in Hot Forming of Aluminium Alloys
- 2019Tribological Behaviour of PVD Coated Tool Steels in Hot Forming of Aluminium Alloys
- 2018Effect of Surface Engineered Tool Steels on Frition and Wear During Sliding Against Aluminium at High Temperatures
- 2014Influence of microstructural evolution of Al-Si coated UHSS on its tribological behaviour against tool steel at elevated temperatures
- 2013High temperature galling : influencing parameters and mechanisms
- 2012Effect of static and dynamic ageing on friction and wear behaviour of aluminium 6082 alloy
- 2012Influence of tool steel surface topography on galling during hot forming of Al-Si coated ultra high-strength steels
- 2012Investigations into wear and galling mechanism of aluminium alloy-tool steel tribopair at different temperatures
- 2011Hot forming tribology : galling of tools and associated problems
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document
Tribological Behaviour of PVD Coated Tool Steels in Hot Forming of Aluminium Alloys
Abstract
Aluminium alloys are commonly used as light-weight materials in the automotive industry. This non-ferrous family of metal alloys offers high versatility of properties and designs. In order to reduce weight and improve safety, grades with high strength-to-weight ratio, such as the 6XXX and 7XXX alloy series, are increasingly implemented in vehicles. These alloys, however, exhibit low formability and experience considerable springback when formed at low temperatures, and thus have to be formed at elevated temperatures. Severe adhesion and galling are known to be critical tribological challenges in hot forming of aluminium. During the forming operation, adhesion and transfer of aluminium onto the die surface take place. This phenomenon has a detrimental effect on the surface properties, geometrical tolerances of the formed parts and maintenance of the dies. The influence of surface engineering as well as lubricant composition on adhesion and galling has not been sufficiently investigated. Diamond-like-Carbon and Chromium Nitride PVD coatings applied on the tool steel have shown promising results for reducing aluminium transfer at high-temperatures, especially in the presence of a lubricant. However, the interaction between lubricants and PVD coatings during hot forming of aluminium alloys is not yet fully understood. The present study thus aims at characterising the high temperature tribological behaviour of selected PVD coatings and a lubricant during sliding against an aluminium alloy. The objectives are to select promising lubricant-coating combinations for the given application and to study their tribological response in a high-temperature reciprocating friction and wear tester. The tests were carried out at 300°C, under dry and lubricated conditions, in order to study the friction and wear performance. Uncoated tool steel reference tests were performed under dry and lubricated conditions and lubricated tests using DLC, CrN, CrTiN and CrAlN coated tool steel were performed and compared to the reference results. The initial and worn surfaces were analysed with white light 3D optical interferometry, scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) with a view to understand the wear mechanisms.