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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 4    August 2001

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Effects of different simulated fluids on
anticorrosion biometallic materials
LIANG Cheng-hao(梁成浩), MOU Zhan-qi(牟战旗)

School of Chemical Engineering, Dalian University of
Technology, Dalian 116012, P.R.China

Abstract:The corrosion behaviors of SUS316L stainless steel, Co-Cr alloy and Ti-6Al-4V alloy in Ringer's, PBS(-) and Hank's solutions have been investigated. The results indicate that the corrosion of Ringer's solution is the strongest, then followed by PBS(-) and Hank's solution. The presence of  HPO42- , H2PO-4, SO42- and glucose in the PBS(-)and Hank's solution probably reduces the corrosion inhibitor and corrosion current. The decrease of the solution's pH significantly increases the corrosion rate and susceptibility to localized corrosion of SUS316L SS and Co-Cr alloy. However, Ti-6Al-4V alloy exhibits an exceptional stability and has only a slight increase of corrosion rate with decreasing pH.

 

Key words: simulated body fluids; biomedical material; corrosion; corrosion inhibition

ISSN 1672-7029
CN 43-1423/U

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