We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Tribology of laser modified surface of stainless steel in physiological solution.
- Authors
Singh, Raghuvir; Dahotre, Narendra B.
- Abstract
The laser surface treatment of stainless steel (SS) 316L, an important alloy for biomedical applications, was used to improve its corrosion and wear-corrosion resistance in bio-environment. Microstructural and X-ray diffraction (XRD) pattern analysis showed presence of an austenitic phase in both untreated and laser-treated SS316L. Laser melting produced homogenized and refined microstructure on the surface with higher hardness (143–171 HV) compared to untreated SS316L (131 HV). Increase in intensity of γ (200) peaks in XRD pattern for laser-treated (>800 W) SS316L indicated possible crystallographic orientation along γ (200) plane. Passive currents were reduced to <2.8 μA/cm2 and pitting potentials was increased to >+344 mV for samples laser surface treated at greater than 1200 W. The volume-loss and wear-rate of laser-treated SS316L were significantly reduced compared to untreated sample. Abrasive wear was the main wear mechanism for both untreated and laser surface treated SS316L. Wear particles/debris were found to be cold welded on the surface of SS316L and showed brittle cracking with further wear-straining.
- Subjects
SURFACES (Technology); STAINLESS steel; TRIBOLOGY; CORROSION &; anti-corrosives; X-ray diffraction; MECHANICAL wear
- Publication
Journal of Materials Science, 2005, Vol 40, Issue 21, p5619
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-005-1449-2