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Shellac and hydroxyapatitte coatings on titanium niobium and AISI 316L steel surfaces produced by dip-coating
(2012-12-01)
Shellac is a natural resin used for the preservation of fruits, bones and as a coating on drugs. The hydroxyapatite (HA), which is naturally found in human bones, is used as filler to substitute amputated bone or as a ...
Sol-gel based calcium phosphates coating deposited on Co-Cr-Ni-Mo alloys modified by laser beam irradiation for cardiovascular devices
(Elsevier B.V., 2019-01-01)
Co-Cr-Ni-Mo alloy samples were irradiated by pulsed Yb: YAG laser beam under air and atmospheric pressure. Calcium phosphate coatings were deposited on the irradiated surfaces by the sol-gel method. The sol was prepared ...
EFFECT OF CADMIUM COATING ON THE FATIGUE STRENGTH OF AISI 4140 STEEL USED IN OIL AND GAS COMPANY
(Inegi-feup, 2017-01-01)
The influence of electrodeposited coating of cadmium on AISI 4140 steel has been studied at room temperature in axial fatigue. Axial fatigue testing was performed using studs at base metal and cadmium coated conditions. ...
Powder processing and In Vivo evaluation of a titanium porous coating implant
(2004-12-01)
The processing of titanium porous coatings using powder metallurgy technique to achieve a porous structure that allows osseointegration with bone tissue was discussed. The porous microstructure exhibited micropores and ...
Study of the influence of the rare earth elements (Ce3+ and Ce4+) concentration on the siloxanes coating applied on the copper surface
(2012-12-01)
This work studied the influence of the rare earth (Ce3+ and Ce4+) elements concentration in polysiloxane flints deposited on copper by dip-coating process, and evaluated their resistance in a 3.5 wt.% NaCl medium. Classical ...
Effects of electroplated zinc-nickel alloy coatings on the fatigue strength of AISI 4340 high strength steel
(2005-12-01)
It is well known that fatigue behaviour is an important parameter to be considered in mechanical components subjected to constant and variable amplitude loadings. In combination with corrosion phenomenon, fatigue effects ...
Fatigue Performance of AISI 4340 Steel Ni-Cr-B-Si-Fe HVOF Thermal Spray Coated
(2015-01-01)
Coatings are deposited on high strength materials to improve the surface degradation resistance of several elements. As a consequence, the fatigue strength of coated materials is significantly influenced by internal residual ...
Turning of compacted graphite iron using commercial tiN coated Si 3N4 under dry machining conditions
(2008-12-01)
Due to their high hardness and wear resistance Si3N4 based ceramics are one of the most suitable cutting tool materials for machining hardened materials. Therefore, their high degree of brittleness usually leads to ...