Improved tribological properties, electrochemical resistance and biocompatibility of AISI 316L stainless steel through duplex plasma nitriding and TiN coating treatment

2017 ◽  
Vol 32 (1) ◽  
pp. 12-27 ◽  
Author(s):  
Wen-Hsien Kao ◽  
Yean-Liang Su ◽  
Jeng-Haur Horng ◽  
Yun-Ting Hsieh
Keyword(s):  
Stainless Steel ◽  
Tribological Properties ◽  
316L Stainless Steel ◽  
Plasma Nitriding ◽  
Aisi 316L ◽  
Tin Coating ◽  
Aisi 316L Stainless Steel

Tribological properties of biomedical 316L stainless steel after plasma nitriding and Ti-C:H sputtering coating

2018 ◽  
Vol 70 (8) ◽  
pp. 1516-1526
Author(s):  
Wen-Hsien Kao ◽  
Yean-Liang Su
Keyword(s):  
Stainless Steel ◽  
Tribological Properties ◽  
316L Stainless Steel ◽  
Plasma Nitriding ◽  
Effective Means ◽  
Tribological Performance ◽  
Aisi 316L ◽  
Aisi 316L Stainless Steel ◽  
Content Type ◽  
Wear Tests

Purpose This paper aims to investigate the effects of plasma nitriding and Ti-C:H coating deposition on AISI 316L and to find the best tribological performance of various specimens. Design/methodology/approach An experimental investigation is performed into the effects of plasma nitriding and Ti-C:H sputtering on the tribological properties of AISI 316L biomedical stainless steel. Five samples are prepared, namely, original AISI 316L stainless steel (code: 316L), nitrided 316L (code: N316), 316L and N316 sputtered with Ti-C:H (codes: D316 and DN316, respectively) and polished N316 sputtered with Ti-C:H (DN316s). The microstructure, mechanical properties and coating adhesion strength of the various samples are investigated and compared. The tribological properties of the samples are then evaluated by means of reciprocating wear tests performed in 8.9 Wt.% NaCl solution against three different counterbodies, namely, a 316L ball, Ti6Al4V ball and Si3N4 ball. Findings It is shown that plasma nitriding followed by Ti-C:H deposition (DN316s) improves the tribological properties of AISI 316L; the sample provides the best tribological performance of the various specimens and has a wear rate approximately 156 times lower than that of the original 316L substrate. Originality/value The results suggest that nitriding followed by polishing and Ti-C:H sputtering provides an effective means of improving the service life of AISI 316L biomedical implants.

Analysis of deformation induced martensite in AISI 316L stainless steel

2016 ◽  
Vol 58 (6) ◽  
pp. 547-552 ◽  
Author(s):  
Darko Jagarinec ◽  
Peter Kirbiš ◽  
Jožef Predan ◽  
Tomaž Vuherer ◽  
Nenad Gubeljak
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Aisi 316L ◽  
Aisi 316L Stainless Steel
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