Search Results - "Wiklund, U."

Wear phenomena and tribofilm formation of copper/copper-graphite sliding electrical contact materials by Grandin, M., Wiklund, U.

“…Copper-graphite composites in reciprocating sliding against copper are investigated with regards to friction, wear and contact resistance. The tribological and…”
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The influence of metallic interlayers on the adhesion of PVD TiN coatings on high-speed steel by Gerth, J., Wiklund, U.

“…In nearly all applications the adhesion of the coating to the substrate is crucial for the components performance and length of life. To enhance the adhesion…”
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Axial suspension plasma spraying of Al2O3 coatings for superior tribological properties by Goel, S, Björklund, S, Curry, N, Wiklund, U, Joshi, SV

“…Suspension plasma spray is a relatively new thermal spray technique which enables feeding of fine powder to produce advanced coatings for varied applications…”
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Friction, wear and tribofilm formation on electrical contact materials in reciprocating sliding against silver-graphite by Grandin, M., Wiklund, U.

“…In this study nanocomposite coatings mating silver-graphite were investigated for sliding electrical contact applications with the aim to optimize tribological…”
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Wear of uncoated and PVD coated cemented carbide tools for processing of copper based materials part II: Exploring the sliding contact with pure copper by Heinrichs, J., Mikado, H., Wiklund, U., Jacobson, S.

“…Cemented carbide tools are successfully used to shear Cu alloy wire into zipper elements in the zipper industry. However, wear of the tools is the limiting…”
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Wear of cemented carbide forging dies used in zipper production by Heinrichs, J., Mikado, H., Wiklund, U., Kawamura, S., Jacobson, S.

“…Cemented carbide tools are commonly used in both cutting and forging processes associated to zipper production. In production, the tools experience many…”
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Potential of nitrogen atomized alloy 625 in the powder bed fusion laser beam process by Hassila, C.J., Paschalidou, M., Harlin, P., Wiklund, U.

“…[Display omitted] •Results indicate that with correct alloying, atomization of Alloy 625 for powder bed fusion process is possible using nitrogen gas.•The…”
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Wear of uncoated and PVD coated cemented carbide tools for processing of copper based materials part I: Lab test verification in dry and lubricated sliding by Mikado, H., Heinrichs, J., Wiklund, U., Jacobson, S.

“…In the manufacturing of metal zippers, including several complicated forming and shearing process steps, the tool wear is a limiting factor, since it…”
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Passive leg-lifting in heart failure patients predicts exercise-induced rise in left ventricular filling pressures by Tossavainen, E., Wikström, G., Henein, M. Y., Lundqvist, M., Wiklund, U., Lindqvist, P.

“…Aim The aim of this study was to assess PCWP with passive leg-lifting (PLL) and exercise, in two groups of patients presenting with normal left ventricular…”
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Rolling contact fatigue crack propagation relative to anisotropies in additive manufactured Inconel 625 by Hassila, C.J., Harlin, P., Wiklund, U.

“…Additive manufacturing is steadily gaining acceptance in certain industry segments as a process for the manufacturing of dense metallic components. The…”
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Effect of combined additions of Si, Mn, Cr and Al to carbon steel on material transfer in a steel/TiN coated tool sliding contact by Aiso, T., Wiklund, U., Kubota, M., Jacobson, S.

“…Material transferred from steel work materials onto the cutting tools largely affects tool life and machining performance. This material transfer is strongly…”
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Wear mechanisms of WC-Co cemented carbide tools and PVD coated tools used for shearing Cu-alloy wire in zipper production by Heinrichs, J., Mikado, H., Kawakami, A., Wiklund, U., Kawamura, S., Jacobson, S.

“…To form the individual elements, that together form a zipper, a pre-formed Cu-alloy wire is sheared using cemented carbide tools. The wear caused by the…”
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Gender and age effects on risk factor-based prediction of coronary artery calcium in symptomatic patients: A Euro-CCAD study by Nicoll, R, Wiklund, U, Zhao, Y, Diederichsen, A, Mickley, H, Ovrehus, K, Zamorano, J, Gueret, P, Schmermund, A, Maffei, E, Cademartiri, F, Budoff, M, Henein, M

“…Abstract Background and aims The influence of gender and age on risk factor prediction of coronary artery calcification (CAC) in symptomatic patients is…”
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Effect of Si and Al additions to carbon steel on material transfer and coating damage mechanism in turning with CVD coated tools by Aiso, T., Wiklund, U., Kubota, M., Jacobson, S.

“…Material transfer from the work materials to the tools strongly influences machining performance and tool life. The influence of Si and Al additions to carbon…”
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The coronary calcium score is a more accurate predictor of significant coronary stenosis than conventional risk factors in symptomatic patients: Euro-CCAD study by Nicoll, R, Wiklund, U, Zhao, Y, Diederichsen, A, Mickley, H, Ovrehus, K, Zamorano, P, Gueret, P, Schmermund, A, Maffei, E, Cademartiri, F, Budoff, M, Henein, M

“…Abstract Aims In this retrospective study we assessed the predictive value of the coronary calcium score for significant (> 50%) stenosis relative to…”
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Assessing local yield stress and fracture toughness of carbon nanotube poly(methyl methacrylate) composite by nanosectioning by Sun, F., Wiklund, U., Avilés, F., Gamstedt, E.K.

“…A nanosectioning (cutting) method was used to test the local shear yield stress and fracture toughness (specific work of surface formation) of multiwall carbon…”
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Influence of Mn and Al additions to carbon steel on material transfer and coating damage mechanism in a sliding contact between steel and TiN coated HSS tool by Aiso, T., Wiklund, U., Kubota, M., Jacobson, S.

“…A crossed cylinders sliding test, simulating the contact between the chip and the cutting tool, is used to evaluate material transfer, friction characteristics…”
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Increased abdominal fat mass and high fat consumption in young school children with congenital heart disease: results from a case‐control study by Hansson, L., Lind, T., Öhlund, I., Wiklund, U., Rydberg, A.

“…Background We have previously found that infants with complex congenital heart disease (CHD) experience growth failure despite high‐energy dietary…”
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On the wear of PVD-coated HSS hobs in dry gear cutting by Gerth, J., Larsson, M., Wiklund, U., Riddar, F., Hogmark, S.

“…A hob is an advanced gear cutting tool usually made of homogenous high-speed steel (HSS) and coated by physical vapour deposition (PVD). It is designed for…”
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Sinus node dysfunction in patients with Fontan circulation: could heart rate variability be a predictor for pacemaker implantation? by Dahlqvist, Jenny Alenius, Wiklund, Urban, Karlsson, Marcus, Hanséus, Katarina, Strömvall-Larsson, Eva, Nygren, Anders, Eliasson, Håkan, Rydberg, Annika

“…Sinus node dysfunction (SND) causes significant morbidity in patients after Fontan surgery. Heart rate variability (HRV) reflects the autonomic regulation of…”
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