Results 91 to 100 of about 4,745,577 (253)
Determination of enamel and coronal dentin microhardness [PDF]
, 2015 The Vickers microhardness of enamel and coronal dentin of 30 canines was evaluated. The incisal portion of the crown was discarded by means of a transverse section made 5mm, coronally, from the cemento-enamel junction located on the buccal surface ...
Todescan, José Hildebrando +5 more
core +1 more source
steel research international, EarlyView.Prebending of 304L/Q345R cladded plates significantly alters the subsequent weld thermal cycle and modifies the local interfacial microstructure. Combined electron backscatter diffraction (EBSD) and microscopy analysis demonstrates that deformation twinning, martensitic transformation, and defect initiation are concentrated at the trimaterial junction,
Ali Fahem +2 more
wiley +1 more source
LASER ADJUSTING MICROHARDNESS OF THE TITANIUM ALLOYS SURFACE LAYER [PDF]
, 2020 The modes of laser surface treatment of VT9 and VT18u titanium alloys were investigated. The microhardness of the surface layers of the samples tested by the Berkovich and Vickers pyramids was calculated.
Симонов, Ю. В., Simonov, Yu. V.
core
steel research international, EarlyView.A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi +3 more
wiley +1 more source
steel research international, EarlyView.Paint baking of resistance spot welded joints of 2.0 GPa warm‐stamped medium‐Mn steel activates low‐temperature tempering, forming fine cementite in the fusion zone and enhancing toughness. Crack propagation resistance increases, shifting the failure mode from partial interfacial to complete pullout, with peak load and energy absorption rising ...
Sunusi Marwana Manladan +8 more
wiley +1 more source
Remineralizing effect of commercial fluoride varnishes on artificial enamel lesions
Brazilian Oral Research: The aim of this study was to evaluate soluble and insoluble fluoride concentrations in commercial varnishes, and their remineralization effect on artificial caries enamel lesions using surface and cross-sectional microhardness evaluations. Forty bovine
Fernanda Alvarez de Godoi +7 more
doaj +1 more source
steel research international, EarlyView.The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley +1 more source
SURFACE MORPHOLOGY AND MICROHARDNESS BEHAVIOR OF 316L IN HAP-PMEDM [PDF]
, 2019 The development of biomaterials for implants nowadays requires materials with superior mechanical and physical properties for enhanced osseointegration and sustained longevity.
Singh, Gurpreet +5 more
core +2 more sources
steel research international, EarlyView.Niobium cathodic cage duplex treatment is applied to VP20TS steel to evaluate the influence of surface roughness and temperature on coating performance. Results show that higher temperatures promote thicker nitride layers and increased microhardness, while finer surface preparation enhances adhesion and wear resistance, revealing optimal conditions for
Alan Bruno Costa Cardoso +6 more
wiley +1 more source
Journal of Orofacial SciencesIntroduction: Studies on the effects of coloring solutions such as coffee and cola on the surface properties of bleached composite restorations are limited. Also, the effect of coloring agents on surface roughness and microhardness of composite specimens
Mohammad Reza Taghizadeh +3 more
doaj +1 more source