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article

Nanostructured wear-resistant coatings based on refractory metals nitrides: physical-mechanical propertiesand structural-phase state

Panda, Anton, Dyadyura, Konstiantyn, Hovorun, Tatyana, Pylypenko, Oleksandr, more

Management and Production Engineering Review > 2019 > 10 > 4

article

Investigation of friction and wear mechanisms of TiAlV coated carbide against Ti6Al4V titanium alloy using pin-on-disc tribometer

Grzesik, Wit, Małecka, Joanna, Zalisz, Zbigniew, Żak, Krzysztof, more

Archive of Mechanical Engineering > 2016 > 63 > 1

article

Enhancement of wear and ballistic resistance of armour grade AA7075 aluminium alloy using friction stir processing

I. Sudhakar, V. Madhu, G. Madhusudhan Reddy, K. Srinivasa Rao, more

Defence Technology > 2015 > 11 > 1 > 10-17

Industrial applications of aluminium and its alloys are restricted because of their poor tribological properties. Thermal spraying, laser surfacing, electron beam welding are the most widely used techniques to alter the surface morphology of base metal. Preliminary studies reveal that the coating and layering of aluminium alloys with ceramic particles enhance the ballistic resistance. Furthermore,...

article

Tribological behaviour and lubrication performance of hexagonal boron nitride (h-BN) as a replacement for graphite in aluminium forming

B. Podgornik, T. Kosec, A. Kocijan, Č. Donik, more

Tribology International > 2015 > 81 > Complete > 267-275

In metal-forming processes friction leads to the generation of heat, adhesion and the pick-up of work material, tool wear, inhomogeneous deformations, defects and a poor surface quality. Therefore, the use of suitable lubricants is required, especially in the case of aluminium and aluminium alloys. With the increased complexity of the parts being formed, higher strength requirements and the introduction...

article

Structure–property relationships in a CoCrMo alloy at micro and nano-scales

R. Ahmed, H.L. de Villiers Lovelock, N.H. Faisal, S. Davies, more

Tribology International > 2014 > 80 > Complete > 98-114

This investigation considered the multiscale tribo-mechanical evaluations of CoCrMo (Stellite ⁽ R)21) alloys manufactured via two different processing routes of casting and HIP-consolidation from powder (Hot Isostatic Pressing). These involved hardness, nanoscratch, impact toughness, abrasive wear and sliding wear evaluations using pin-on-disc and ball-on-flat tests. HIPing improved the nanoscratch...

article

Evolution of residual stress and damage in coated hard metal milling inserts over the complete tool life

T. Teppernegg, T. Klünsner, P. Angerer, C. Tritremmel, more

International Journal of Refractory Metals and Hard Materials > 2014 > 47 > Complete > 80-85

In coated hard metal milling inserts the main damage mechanisms are thermal fatigue induced by interrupted tool–workpiece contact and wear. Dependent on the magnitudes of thermal and mechanical loads in two applied test setups, either wear or thermal fatigue in the form of combcracks is induced. The evolution of residual stress and damage in the used milling inserts was documented over their complete...

article

A multi-stage wear model for grid-to-rod fretting of nuclear fuel rods

Peter J. Blau, P.J. Blau

Wear > 2014 > 313 > 1-2 > 89-96

The wear of fuel rod cladding against the supporting structures in the cores of pressurized water nuclear reactors (PWRs) is an important and potentially costly tribological issue. Grid-to-rod fretting (GTRF), as it is known, involves not only time-varying contact conditions, but also elevated temperatures, flowing hot water, aqueous tribo-corrosion, and the embrittling effects of neutron fluences...

article

Wear characteristics of large aspect ratio silicon microbearing systems

S. Demiri, S. Boedo, L.S. Holsen, S. Demiri, more

Wear > 2014 > 312 > 1-2 > 58-69

This paper addresses the wear characteristics of large aspect ratio (length-to-diameter) silicon microbearing systems using an enhanced experimental test rig. The test system is comprised of a rigid rotor which has been manually assembled onto a fixed hub to form the microbearing. CMOS-based lithographic and etching processes, including deep-reactive ion etching, are employed in the construction of...

article

Study of Friction and Wear of ABS/Zno Polymer Composite Using Taguchi Technique

J. Sudeepan, K. Kumar, T.K. Barman, P. Sahoo, more

Procedia Materials Science > 2014 > 6 > Complete > 391-400

The present study considers the tribological behavior of polymer composite material prepared using acrylonitrile-butadiene- styrene (ABS) as the base material and micron-sized zinc oxide (ZnO) as the filler. The experiment is carried out in dry condition on block-on-roller multi-tribotester (DUCOM) in room temperature based on Taguchi‟s L27 orthogonal array (OA). Filler content, normal load and sliding...

article

Microstructure, mechanical properties and corrosion performance of 7075 Al matrix ceramic particle reinforced composite coatings produced by the cold gas dynamic spraying process

Onur Meydanoglu, Bertrand Jodoin, E. Sabri Kayali, O. Meydanoglu, more

Surface & Coatings Technology > 2013 > 235 > Complete > 108-116

In this study, microstructural evolutions, mechanical properties and corrosion performance of coatings made of 7075 Al matrix with B ₄ C or SiC reinforcement deposited on T6 6061 Al alloy using the cold gas dynamic spraying process were investigated. Microstructural surveys have shown that coatings with no discontinuity at the interface as well as with fine grains were obtained and the addition...

article

Evaluation of the wear properties of dual two-phase Ni3Al/Ni3V intermetallic alloys

Sanat Wagle, Yasuyuki Kaneno, Rokuro Nishimura, Takayuki Takasugi, more

Tribology International > 2013 > 66 > Complete > 234-240

Two-phase Ni3Al3V intermetallic alloys with and without carbon addition, composed of geometrically closed-packed (GCP) structures of Ni ₃ Al (L1 ₂ ) and Ni ₃ V (D0 ₂₂ ), were investigated for dry sliding wear against a G5 disc (WC carbides with a hardness of 1350 HV) at 298K and 573K by using a pin-on-disc type configuration. The dry sliding wear of a commercial Inconel...

article

Spark plasma sintering of hard wear‐resistant graphene nanoplatelet–reinforced TiB₂ + SiC composites from TiC–B₄C–SiC

Jesús López‐Arenal, Victor Zamora, Fernando Guiberteau, Angel L. Ortiz

Journal of the American Ceramic Society > 107 > 12 > 8521 - 8529

Graphene nanoplatelet (GNP)–reinforced TiB₂ + SiC composites were fabricated by reactive spark plasma sintering (SPS) from a TiC–B₄C–SiC powder mixture with equal‐volume percentages, optimizing their SPS temperature and evaluating their unlubricated sliding wear against diamond. First, it is shown that during the heating ramp of the SPS cycle, TiC and B₄C react according to the chemical reaction 2TiC + B...

article

Ceramic materials as an alternative for conventional spark plug electrodes

Walter Harrer, Manuel Gruber, Verena Melcher, Anton Tilz, more

International Journal of Applied Ceramic Technology > 21 > 6 > 4393 - 4403

Large gas engines are typically applied to compensate for peak loads and grid instabilities in the electric power supply. A key component of these engines is the spark plug. Because of the harsh conditions encountered in their use, the spark plug electrodes are subject to significant wear. Conventional electrodes are expensive due to the precious metal alloys they contain. As an alternative, ceramic...

article

Carbon nanotube functionalization supports mechanical, tribological, and biological response of freeze‐dried ultra‐high molecular weight polyethylene‐based bio‐composites

Pooja Rani, Indrajeet Singh, Deepak Khare, Kantesh Balani

Journal of Applied Polymer Science > 141 > 42 > n/a - n/a

Acetabular cup liners made of ultra‐high molecular weight polyethylene (UHMWPE), in hip implants fail mostly due to wear debris generation and poor wear resistance. Consequently, strengthening UHMWPE becomes essential. The current work exhibits how the addition of 5 vol% carbon nanotubes (CNT) and functionalized carbon nanotubes (fCNT) in UHMWPE (denoted as U) affects the mechanical properties (hardness,...

article

Application of Recurrence Quantification Analysis in the Detection of Osteoarthritis of the Knee with the Use of Vibroarthrography

Anna Machrowska, Robert Karpiński, Marcin Maciejewski, Józef Jonak, more

Advances in Science and Technology. Research Journal > 2024 > Vol. 18, no 5 > 19--31

Nowadays, the world is struggling with the problems of an aging society. With the increasing share of older people in the population, degenerative joint diseases are a growing problem. The result of progressive degenerative changes in joints is primarily the deterioration of the patients' quality of life and their gradual exclusion from activity and social life. The ability to effectively, non-invasively...

article

Mechanical, morphological, and corrosion features of Ni–Cr oxide nanocomposite coating deposited on SS304 by EPD

Hurieh Mohammadzadeh, Robabeh Jafari, Artin Azargoon

International Journal of Applied Ceramic Technology > 21 > 5 > 3435 - 3452

Ceramic composites are suitable materials to improve the surface characteristics of steel. Therefore, in this research, Ni–Cr oxide nanocomposite was coated on 304 stainless steel (SS304) by the electrophoretic approach. The effect of chemical composition and coating parameters (time and voltage) was investigated on morphology, corrosion, microhardness, and wear behavior. The nanocomposites were successfully...

article

Assessment of the Conveyor Belt Strength Decrease due to the Long Term Exploitation in Harmful Conditions

Kamil Kurpanik, Sebastian Sławski, Tomasz Machoczek, Anna Woźniak, more

Advances in Science and Technology. Research Journal > 2024 > Vol. 18, no 4 > 1--11

Bucket conveyors are widely used in various industrial sectors due to their efficiency in material transport. However, like any machinery, they are susceptible to degradation during operation, leading to a decrease in performance and an increase in the risk of failure. Therefore, research was conducted to understand the impact of operation on bucket conveyor belts. In the study, samples were prepared...

article

Friction and wear behavior of micro‐arc oxidation‐modified graphene/epoxy resin composite coating on TC4 titanium alloy

X. W. Chen, S. Tang, W. L. Xie, M. Zhang, more

Materialwissenschaft und Werkstofftechnik > 55 > 7 > 1037 - 1044

To enhance the friction and wear performance of TC4 titanium alloy, micro‐arc oxidation(MAO) coating was fabricated on its surface, which was subsequently sealed with a modified graphene/epoxy resin coating to form a composite coating of micro‐arc oxidation ‐modified graphene/epoxy resin. The friction and wear performance of samples sealed by different methods are analyzed and characterized using...

article

Construction of core–shell‐structured halloysite nanotubes with TiO₂ nanoparticles for ultra‐high‐molecular‐weight polyethylene (UHMWPE) nanocomposites with improved wear resistance

Wei Wu, Weizhong Tang, Jiangbo Li, Zijian Tang, more

Polymer Composites > 45 > 9 > 8495 - 8507

A hybrid of halloysite nanotubes decorated with titanium dioxide nanoparticles (HNTs@TiO₂) was synthesized by the sol–gel method and then mixed with ultra‐high molecular polyethylene (UHMWPE) by melt compounding to enhance its wear resistance properties. The incorporation of HNTs@TiO₂ increased the crystallinity as well as the hardness of UHMWPE nanocomposites, which benefited less prone to plastic...

article

Investigation of the effect of thermal aging and wear test parameters on the wear behavior of glass fiber (GF) reinforced epoxy composites

Alp Eren Sahin, Eser Yarar, Mustafa Ozgur Bora, Taner Yilmaz

Polymer Composites > 45 > 9 > 7820 - 7832

This study focused on the wear behavior of unidirectional, thick GF epoxy composites produced using the autoclave method. The thermal aging process was applied for 250 and 500 cycles to understand the wear behavior of the material as it ages over time. To evaluate the wear behavior of the samples, wear tests were carried out under three different loads (10, 20, and 30 N) and three different sliding...

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Search results

Nanostructured wear-resistant coatings based on refractory metals nitrides: physical-mechanical propertiesand structural-phase state

Investigation of friction and wear mechanisms of TiAlV coated carbide against Ti6Al4V titanium alloy using pin-on-disc tribometer

Enhancement of wear and ballistic resistance of armour grade AA7075 aluminium alloy using friction stir processing

Tribological behaviour and lubrication performance of hexagonal boron nitride (h-BN) as a replacement for graphite in aluminium forming

Structure–property relationships in a CoCrMo alloy at micro and nano-scales

Evolution of residual stress and damage in coated hard metal milling inserts over the complete tool life

A multi-stage wear model for grid-to-rod fretting of nuclear fuel rods

Wear characteristics of large aspect ratio silicon microbearing systems

Study of Friction and Wear of ABS/Zno Polymer Composite Using Taguchi Technique

Microstructure, mechanical properties and corrosion performance of 7075 Al matrix ceramic particle reinforced composite coatings produced by the cold gas dynamic spraying process

Evaluation of the wear properties of dual two-phase Ni3Al/Ni3V intermetallic alloys

Spark plasma sintering of hard wear‐resistant graphene nanoplatelet–reinforced TiB₂ + SiC composites from TiC–B₄C–SiC

Ceramic materials as an alternative for conventional spark plug electrodes

Carbon nanotube functionalization supports mechanical, tribological, and biological response of freeze‐dried ultra‐high molecular weight polyethylene‐based bio‐composites

Application of Recurrence Quantification Analysis in the Detection of Osteoarthritis of the Knee with the Use of Vibroarthrography

Mechanical, morphological, and corrosion features of Ni–Cr oxide nanocomposite coating deposited on SS304 by EPD

Assessment of the Conveyor Belt Strength Decrease due to the Long Term Exploitation in Harmful Conditions

Friction and wear behavior of micro‐arc oxidation‐modified graphene/epoxy resin composite coating on TC4 titanium alloy

Construction of core–shell‐structured halloysite nanotubes with TiO₂ nanoparticles for ultra‐high‐molecular‐weight polyethylene (UHMWPE) nanocomposites with improved wear resistance

Investigation of the effect of thermal aging and wear test parameters on the wear behavior of glass fiber (GF) reinforced epoxy composites

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