title: Surface modification of 316L stainless steel with magnetron sputtered TiN/VN nanoscale multilayers for bio implant applications.
abstract: Nanoscale multilayered TiN/VN coatings were developed by reactive dc magnetron sputtering on 316L stainless steel substrates. The coatings showed a polycrystalline cubic structure with (111) preferential growth. XPS analysis indicated the presence of peaks corresponding to Ti2p, V2p, N1s, O1s, and C1s. Raman spectra exhibited the characteristic peaks in the acoustic range of 160-320 cm(-1) and in the optic range between 480 and 695 cm(-1). Columnar structure of the coatings was observed from TEM analysis. The number of adherent platelets on the surface of the TiN/VN multilayer, VN, TiN single layer coating exhibit fewer aggregation and pseudopodium than on substrates. The wear resistance of the multilayer coatings increases obviously as a result of their high hardness. Tafel plots in simulated bodily fluid showed lower corrosion rate for the TiN/VN nanoscale multilayer coatings compared to single layer and bare 316L SS substrate.
authors: Central Electrochemical Research Institute, CSIR, Karaikudi, India. bsmanian@cecri.res.in
authors: B
authors: B
authors: Subramanian
authors: R
authors: R
authors: Ananthakumar
authors: Akira
authors: A
authors: Kobayashi
authors: M
authors: M
authors: Jayachandran
mesh_terms: D000162:Acoustics; D001407:Bacillus / Q000378:metabolism; D001410:Bacillus megaterium / Q000378:metabolism; D001422:Bacterial Adhesion; D001672:Biocompatible Materials / Q000737:chemistry; D001792:Blood Platelets / Q000166:cytology / Q000378:metabolism; D001826:Body Fluids / Q000737:chemistry; D003343:Corrosion; D003460:Crystallization; D004563:Electrochemistry / Q000379:methods; D006244:Hardness; D046529:Microscopy, Electron, Transmission / Q000379:methods; D036103:Nanotechnology / Q000379:methods; D010973:Platelet Adhesiveness; D013059:Spectrum Analysis, Raman / Q000379:methods; D013193:Stainless Steel / Q000737:chemistry*; D013314:Stress, Mechanical; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*; D014639:Vanadium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D001672:Biocompatible Materials; D014639:Vanadium; D013193:Stainless Steel; C041500:titanium nitride; D014025:Titanium