title: Nanotribological response of a plasma nitrided bio-steel.
abstract: AISI 316L is a well known biocompatible, austenitic stainless steel (SS). It is thus a bio-steel. Considering its importance as a bio-prosthesis material here we report the plasma nitriding of AISI 316L (SS) followed by its microstructural and nanotribological characterization. Plasma nitriding of the SS samples was carried out in a plasma reactor with a hot wall vacuum chamber. For ease of comparison these plasma nitrided samples were termed as SSPN. The experimental results confirmed the formations of an embedded nitrided metal layer zone (ENMLZ) and an interface zone (IZ) between the ENMLZ and the unnitrided bulk metallic layer zone (BMLZ) in the SSPN sample. These ENMLZ and IZ in the SSPN sample were richer in iron nitride (FeN) chromium nitride (CrN) along with the austenite phase. The results from nanoindentation, microscratch, nanoscratch and sliding wear studies confirmed that the static contact deformation resistance, the microwear, nanowear and sliding wear resistance of the SSPN samples were much better than those of the SS samples. These results were explained in terms of structure-property correlations.
authors.affiliation: Advanced Mechanical and Material Characterization Division, CSIR-Central Glass and Ceramics Research Institute, Raja S.C. Mullick Road, Kolkata 700 032, India. Electronic address: aniruddha.chm@gmail.com.
authors.forename: Aniruddha
authors.initials: A
authors.lastname: Samanta
authors.affiliation: Advanced Mechanical and Material Characterization Division, CSIR-Central Glass and Ceramics Research Institute, Raja S.C. Mullick Road, Kolkata 700 032, India. Electronic address: himelchakraborty@gmail.com.
authors.forename: Himel
authors.initials: H
authors.lastname: Chakraborty
authors.affiliation: Advanced Mechanical and Material Characterization Division, CSIR-Central Glass and Ceramics Research Institute, Raja S.C. Mullick Road, Kolkata 700 032, India. Electronic address: mbmanjima7@gmail.com.
authors.forename: Manjima
authors.initials: M
authors.lastname: Bhattacharya
authors.affiliation: Advanced Mechanical and Material Characterization Division, CSIR-Central Glass and Ceramics Research Institute, Raja S.C. Mullick Road, Kolkata 700 032, India. Electronic address: jiten@cgcri.res.in.
authors.forename: Jiten
authors.initials: J
authors.lastname: Ghosh
authors.affiliation: Advanced Mechanical and Material Characterization Division, CSIR-Central Glass and Ceramics Research Institute, Raja S.C. Mullick Road, Kolkata 700 032, India. Electronic address: m_sreemany@cgcri.res.in.
authors.forename: Monjoy
authors.initials: M
authors.lastname: Sreemany
authors.affiliation: Advanced Material Characterization Unit, CSIR-Central Glass and Ceramics Research Institute, Kolkata 700 032, India. Electronic address: sbysakh@cgcri.res.in.
authors.forename: Sandip
authors.initials: S
authors.lastname: Bysakh
authors.affiliation: Facilitation Centre for Industrial Plasma Technologies, Institute for Plasma Research, Gandhinagar 382 428, India. Electronic address: ramkrishna.rane@gmail.com.
authors.forename: Ramkrishna
authors.initials: R
authors.lastname: Rane
authors.affiliation: Facilitation Centre for Industrial Plasma Technologies, Institute for Plasma Research, Gandhinagar 382 428, India. Electronic address: alphonsa@ipr.res.in.
authors.forename: Alphonsa
authors.initials: A
authors.lastname: Joseph
authors.affiliation: Facilitation Centre for Industrial Plasma Technologies, Institute for Plasma Research, Gandhinagar 382 428, India.
authors.forename: Ghanshyam
authors.initials: G
authors.lastname: Jhala
authors.affiliation: Facilitation Centre for Industrial Plasma Technologies, Institute for Plasma Research, Gandhinagar 382 428, India. Electronic address: mukherji@ipr.res.in.
authors.forename: Subroto
authors.initials: S
authors.lastname: Mukherjee
authors.affiliation: Bioceramics and Coating Division, CSIR-Central Glass & Ceramic Research Institute, Raja S.C. Mullick Road, Kolkata 700032, India.
authors.forename: Mitun
authors.initials: M
authors.lastname: Das
authors.affiliation: Advanced Mechanical and Material Characterization Division, CSIR-Central Glass and Ceramics Research Institute, Raja S.C. Mullick Road, Kolkata 700 032, India. Electronic address: anoopmukherjee@cgcri.res.in.
authors.forename: Anoop K
authors.initials: AK
authors.lastname: Mukhopadhyay
mesh_terms: D001672:Biocompatible Materials / Q000032:analysis*; D008422:Materials Testing; D058626:Plasma Gases; D013193:Stainless Steel / Q000032:analysis*
chemical_list: D001672:Biocompatible Materials; D058626:Plasma Gases; D013193:Stainless Steel
keywords: Hardness; Nanoindentation; Plasma nitriding; Scratch; Steel