FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W30994276> ?p ?o ?g. }

• W30994276 abstract "The presented work is an investigation of the laser surface modification of H13 tool steel using pulse laser processing mode. Initial screening experimental designs conducted lead to more optimised detailed designs. A carbon dioxide (CO2) laser system with 10.6 μm wavelength was used. In the experimental designs investigated three different sizes of laser spot used were 0.4, 0.2 and 0.09 mm diameter. The other controlled parameters were laser peak power, pulse repetition frequency and pulse overlap. The laser processing was constantly assisted by in line argon gas at 0.1 MPa pressure. H13 samples were roughened and chemically etched prior processing to improve the surface absorbance at the CO2 laser wavelength. Laser processed samples were prepared for metallographic study and were characterised for physical and mechanical properties. The metallographic study and chemical composition analysis were conducted using scanning electron microscope integrated with energy dispersive x-ray spectroscopy. The crystallinity and phase detection of the modified surface were conducted using an XRD system with Cu Kα radiation and wavelength of 1.54 A. The surface profile was measured using stylus profilometry measuring systems. The hardness properties of the modified surface were measured by micro- Vickers diamond indentation. A customized thermal fatigue system was used to investigate the effect of surface roughness on the modified surface fatigue properties. A modified surface grain with an ultrafine size of less than 500 nm was observed to be achievable. A modified surface depth which ranged between 35 and 150 μm was developed on the laser processed H13 samples. A reduction of crystallinity was noticeable for the modified H13 surface which was related to the more random distribution of crystallites after laser processing. A minimum modified H13 average surface roughness, Ra, of 1.9 μm was achieved. Another important finding was that at different settings of laser parameters, the modified H13 surface exhibited a range of hardness between 728 and 905 HV0.1. A relationship between thermal simulations findings (heating and cooling rates) and hardness results was established for further understanding of the effects of the laser parameters. These findings are significant to the establishment of surface hardening techniques for wear resistance and thermal barrier coating applications." @default.
• W30994276 created "2016-06-24" @default.
• W30994276 creator A5028657627 @default.
• W30994276 creator A5034226587 @default.
• W30994276 date "2011-11-01" @default.
• W30994276 modified "2023-09-27" @default.
• W30994276 title "Laser surface modification of steel" @default.
• W30994276 hasPublicationYear "2011" @default.
• W30994276 type Work @default.
• W30994276 sameAs 30994276 @default.
• W30994276 citedByCount "1" @default.
• W30994276 countsByYear W309942762018 @default.
• W30994276 crossrefType "dissertation" @default.
• W30994276 hasAuthorship W30994276A5028657627 @default.
• W30994276 hasAuthorship W30994276A5034226587 @default.
• W30994276 hasConcept C107365816 @default.
• W30994276 hasConcept C115537861 @default.
• W30994276 hasConcept C120665830 @default.
• W30994276 hasConcept C121332964 @default.
• W30994276 hasConcept C127413603 @default.
• W30994276 hasConcept C159985019 @default.
• W30994276 hasConcept C192562407 @default.
• W30994276 hasConcept C200649887 @default.
• W30994276 hasConcept C26771246 @default.
• W30994276 hasConcept C42360764 @default.
• W30994276 hasConcept C520434653 @default.
• W30994276 hasConcept C79261456 @default.
• W30994276 hasConceptScore W30994276C107365816 @default.
• W30994276 hasConceptScore W30994276C115537861 @default.
• W30994276 hasConceptScore W30994276C120665830 @default.
• W30994276 hasConceptScore W30994276C121332964 @default.
• W30994276 hasConceptScore W30994276C127413603 @default.
• W30994276 hasConceptScore W30994276C159985019 @default.
• W30994276 hasConceptScore W30994276C192562407 @default.
• W30994276 hasConceptScore W30994276C200649887 @default.
• W30994276 hasConceptScore W30994276C26771246 @default.
• W30994276 hasConceptScore W30994276C42360764 @default.
• W30994276 hasConceptScore W30994276C520434653 @default.
• W30994276 hasConceptScore W30994276C79261456 @default.
• W30994276 hasLocation W309942761 @default.
• W30994276 hasOpenAccess W30994276 @default.
• W30994276 hasPrimaryLocation W309942761 @default.
• W30994276 hasRelatedWork W1965675068 @default.
• W30994276 hasRelatedWork W1968610440 @default.
• W30994276 hasRelatedWork W1984874510 @default.
• W30994276 hasRelatedWork W2006162011 @default.
• W30994276 hasRelatedWork W2009899114 @default.
• W30994276 hasRelatedWork W2018448108 @default.
• W30994276 hasRelatedWork W2042981790 @default.
• W30994276 hasRelatedWork W2053699483 @default.
• W30994276 hasRelatedWork W2060521332 @default.
• W30994276 hasRelatedWork W2078824610 @default.
• W30994276 hasRelatedWork W2171259586 @default.
• W30994276 hasRelatedWork W2538141273 @default.
• W30994276 hasRelatedWork W2592073152 @default.
• W30994276 hasRelatedWork W2790525503 @default.
• W30994276 hasRelatedWork W2945557738 @default.
• W30994276 hasRelatedWork W2958082104 @default.
• W30994276 hasRelatedWork W3015751584 @default.
• W30994276 hasRelatedWork W3102378800 @default.
• W30994276 hasRelatedWork W3198971601 @default.
• W30994276 hasRelatedWork W3151315717 @default.
• W30994276 isParatext "false" @default.
• W30994276 isRetracted "false" @default.
• W30994276 magId "30994276" @default.
• W30994276 workType "dissertation" @default.