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07677 The Effect of a Novel Biopolymer on the Corrosion of 316L Stainless Steel and Ti6A14V Alloys in a Physiologically Relevant Electrolyte

Picture for 07677 The Effect of a Novel Biopolymer on the Corrosion of 316L Stainless Steel and Ti6A14V Alloys i
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Product Number: 51300-07677-SG
ISBN: 07677 2007 CP
Author: Douglas C. Hansen
Publication Date: 2007
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The corrosion behavior of 316L and Ti6Al4V when immersed in 0.9% NaCl, Hanks Balanced Salt Solution (HBSS) and HBSS modified with the addition of albumin and fibrinogen at concentrations similar to that found in blood serum was investigated for the alloys alone and in a galvanic couple configuration. The results of this investigation indicate that the presence of serum proteins in the Hanks Balanced Salt Solution increased the corrosion rate of 316L alloy by an order of magnitude, but decreased the corrosion rate of the Ti6Al4V alloy. However, when the alloys were configured in a galvanic couple, the corrosion of both alloys was increased by the presence of the proteins in solution as compared to the same solution not containing any proteins, or 0.9% NaCl electrolyte. These results indicate that testing of the alloys in solutions not containing proteins in a physiologically relevant concentration may yield corrosion data that is not representative of the actual materials performance when implanted in the body.
The corrosion behavior of 316L and Ti6Al4V when immersed in 0.9% NaCl, Hanks Balanced Salt Solution (HBSS) and HBSS modified with the addition of albumin and fibrinogen at concentrations similar to that found in blood serum was investigated for the alloys alone and in a galvanic couple configuration. The results of this investigation indicate that the presence of serum proteins in the Hanks Balanced Salt Solution increased the corrosion rate of 316L alloy by an order of magnitude, but decreased the corrosion rate of the Ti6Al4V alloy. However, when the alloys were configured in a galvanic couple, the corrosion of both alloys was increased by the presence of the proteins in solution as compared to the same solution not containing any proteins, or 0.9% NaCl electrolyte. These results indicate that testing of the alloys in solutions not containing proteins in a physiologically relevant concentration may yield corrosion data that is not representative of the actual materials performance when implanted in the body.
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