Metal release rate from AISI 316L stainless steel and pure Fe, Cr and Ni into a synthetic biological medium--a comparison

Journal of Environmental Monitoring : JEM
Gunilla HertingChristofer Leygraf

Abstract

Metal release rates from stainless steel grade 316L were investigated in artificial lysosomal fluid (ALF), simulating a human inflammatory cell response. The main focus was placed on release rates of main alloying elements using graphite furnace atomic absorption spectroscopy, and changes in surface oxide composition by means of X-ray photoelectron spectroscopy. To emphasise that alloys and pure metals possess totally different intrinsic properties, comparative studies were performed on the pure alloying constituents: iron, nickel and chromium. Significant differences in release rates were observed due to the presence of a passive surface film on stainless steel. Iron and nickel were released at rates more than 300 times lower from the 316L alloy compared with the pure metals whereas the release rate of chromium was similar. Iron was preferentially released compared with nickel and chromium. Immersion in ALF resulted in the gradual enrichment of chromium in the surface film, a small increase of nickel, and the reduction of oxidized iron with decreasing release rates of alloy constituents as a result. As expected, released metals from stainless steel grade 316L were neither in proportion to the bulk alloy composition nor to the ...Continue Reading

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Nov 7, 2007·Environmental Monitoring and Assessment·Gunilla HertingChristofer Leygraf

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Citations

Feb 5, 2013·Journal of Materials Science. Materials in Medicine·Y HedbergI Odnevall Wallinder
Aug 30, 2008·Journal of Environmental Monitoring : JEM·Gunilla HertingChristofer Leygraf
Jul 1, 2014·Regulatory Toxicology and Pharmacology : RTP·Rayetta G HendersonAdriana R Oller
Nov 12, 2013·Environmental Pollution·Wendy E Hillwalker, Kim A Anderson
Mar 1, 2012·Regulatory Toxicology and Pharmacology : RTP·Rayetta G HendersonAdriana R Oller
Nov 13, 2012·Regulatory Toxicology and Pharmacology : RTP·Neda MazinanianInger Odnevall Wallinder
Jun 22, 2016·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Emmanuel GibonStuart B Goodman
Oct 31, 2015·Biointerphases·Yolanda S Hedberg, Inger Odnevall Wallinder
Mar 2, 2013·Environmental Science. Processes & Impacts·Yolanda HedbergInger Odnevall Wallinder
May 22, 2013·Human & Experimental Toxicology·H Stockmann-JuvalaT Santonen
Feb 26, 2010·Science and Technology of Advanced Materials·Ke Yang, Yibin Ren

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