Matches in SemOpenAlex for { <https://semopenalex.org/work/W4285456505> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W4285456505 abstract "Increased temperature resulting from friction between brake pads and rotors results in formation of friction layers on the friction surfaces and could lead to the bulk material degradation impacting the braking performance. The most often discussed phenomenon is the thermal fade, but there are additional phenomena like thermal shock, crack formations, and increased residual stresses in brake rotors which occur due to local heating. Formation of friction layers is also strongly influenced by temperature on the friction surface, as it defines thermodynamics and kinetics of processes occurring during friction. Gray cast iron is a metal matrix composite comprising of ferrite, pearlite, graphite, and additional inclusions. Morphology, quality, and quantity of these phases can change as temperature varies during and after friction process. Thermal diffusivity characterizes how quickly a material could dissipate heat through it. Grey cast irons exhibit a reasonably high thermal diffusivity and an excellent capacity to dissipate heat. But this characteristic varies in dependence on composition and microstructure of cast irons. The volume content and morphology of graphite flakes found in gray cast irons have the most relevant impact on their thermal diffusivity values. The current study compares the graphite flake morphology of three commercially available gray cast iron rotors, named A, B, and C respectively, manufactured according to the ASTM A48 standard. These rotors are subjected to a complete currently available standardized SAE J2522 friction test on a bench top tester using scaled-down approach, and a commercially available non asbestos organic (NAO) brake pad. Complete material characterization of the friction material using laser flash apparatus (NETZSCH LFA 467), polarized light microscopy (Nikon Microphot FX), scanning electron microscopy (FEI Quanta FEG 450), energy dispersive X-Ray microanalysis (Oxford detector, Inca Systems), topography (NPFLEX 3D Optical Microscopy), and density (analytical balance and Archimedes principle). The polarized light microscopy results of the three commercially available brake rotors reveal the presence of flake-like graphite with average flake sizes as 55 µm, 33 µm, and 60 µm and area fraction as 28%, 26%, and 30%, respectively. Thermal diffusivity values of the studied rotors when measured in temperature range between 25 oC and 500 oC show a decrease by 52.4%, 53.6%, and 54.8% respectively. Commercial brake rotor C exhibited the presence of increased content of oxides in the friction layer formed during elevated temperatures, which helped in the observed improved friction performance." @default.
- W4285456505 created "2022-07-15" @default.
- W4285456505 creator A5015357391 @default.
- W4285456505 creator A5044028707 @default.
- W4285456505 creator A5080487878 @default.
- W4285456505 creator A5087352504 @default.
- W4285456505 date "2021-06-01" @default.
- W4285456505 modified "2023-09-26" @default.
- W4285456505 title "On Thermal Diffusivity of Selected Gray Cast Irons and its Impact on Friction Performance of Automotive Brakes" @default.
- W4285456505 doi "https://doi.org/10.46720/7191167eb2021-fbr-006" @default.
- W4285456505 hasPublicationYear "2021" @default.
- W4285456505 type Work @default.
- W4285456505 citedByCount "0" @default.
- W4285456505 crossrefType "proceedings-article" @default.
- W4285456505 hasAuthorship W4285456505A5015357391 @default.
- W4285456505 hasAuthorship W4285456505A5044028707 @default.
- W4285456505 hasAuthorship W4285456505A5080487878 @default.
- W4285456505 hasAuthorship W4285456505A5087352504 @default.
- W4285456505 hasConcept C104779481 @default.
- W4285456505 hasConcept C121332964 @default.
- W4285456505 hasConcept C134255957 @default.
- W4285456505 hasConcept C159985019 @default.
- W4285456505 hasConcept C176177977 @default.
- W4285456505 hasConcept C191897082 @default.
- W4285456505 hasConcept C192562407 @default.
- W4285456505 hasConcept C2776258540 @default.
- W4285456505 hasConcept C2776735967 @default.
- W4285456505 hasConcept C2778284599 @default.
- W4285456505 hasConcept C2779698641 @default.
- W4285456505 hasConcept C2780999251 @default.
- W4285456505 hasConcept C34975823 @default.
- W4285456505 hasConcept C37210646 @default.
- W4285456505 hasConcept C37668627 @default.
- W4285456505 hasConcept C56948724 @default.
- W4285456505 hasConcept C5701217 @default.
- W4285456505 hasConcept C62520636 @default.
- W4285456505 hasConcept C87976508 @default.
- W4285456505 hasConcept C96288455 @default.
- W4285456505 hasConcept C97355855 @default.
- W4285456505 hasConceptScore W4285456505C104779481 @default.
- W4285456505 hasConceptScore W4285456505C121332964 @default.
- W4285456505 hasConceptScore W4285456505C134255957 @default.
- W4285456505 hasConceptScore W4285456505C159985019 @default.
- W4285456505 hasConceptScore W4285456505C176177977 @default.
- W4285456505 hasConceptScore W4285456505C191897082 @default.
- W4285456505 hasConceptScore W4285456505C192562407 @default.
- W4285456505 hasConceptScore W4285456505C2776258540 @default.
- W4285456505 hasConceptScore W4285456505C2776735967 @default.
- W4285456505 hasConceptScore W4285456505C2778284599 @default.
- W4285456505 hasConceptScore W4285456505C2779698641 @default.
- W4285456505 hasConceptScore W4285456505C2780999251 @default.
- W4285456505 hasConceptScore W4285456505C34975823 @default.
- W4285456505 hasConceptScore W4285456505C37210646 @default.
- W4285456505 hasConceptScore W4285456505C37668627 @default.
- W4285456505 hasConceptScore W4285456505C56948724 @default.
- W4285456505 hasConceptScore W4285456505C5701217 @default.
- W4285456505 hasConceptScore W4285456505C62520636 @default.
- W4285456505 hasConceptScore W4285456505C87976508 @default.
- W4285456505 hasConceptScore W4285456505C96288455 @default.
- W4285456505 hasConceptScore W4285456505C97355855 @default.
- W4285456505 hasLocation W42854565051 @default.
- W4285456505 hasOpenAccess W4285456505 @default.
- W4285456505 hasPrimaryLocation W42854565051 @default.
- W4285456505 hasRelatedWork W2352089229 @default.
- W4285456505 hasRelatedWork W2375609829 @default.
- W4285456505 hasRelatedWork W2375957917 @default.
- W4285456505 hasRelatedWork W2386035297 @default.
- W4285456505 hasRelatedWork W31274556 @default.
- W4285456505 hasRelatedWork W3201765160 @default.
- W4285456505 hasRelatedWork W3209178062 @default.
- W4285456505 hasRelatedWork W4285014932 @default.
- W4285456505 hasRelatedWork W4320492301 @default.
- W4285456505 hasRelatedWork W2130161138 @default.
- W4285456505 isParatext "false" @default.
- W4285456505 isRetracted "false" @default.
- W4285456505 workType "article" @default.