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人工模擬體液中pH值對離子注N人體醫(yī)用合金腐蝕行為的影響
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R318.08 TG146.23

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遼寧省自然科學基金(972210)


Influence of pH Value on Corrosion Behavior of N-ion Implanted Surgery Medical Materials in Artificial Body Fluid
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    摘要:

    采用電化學測試技術(shù)研究了在人工模擬體液中pH值變化對離子注N人體用SUS316L不銹鋼,Co-Cr合金，工業(yè)純Ti和Ti-6Al-4V合金腐蝕行為的影響。結(jié)果表明，隨著pH值的降低，試樣的腐蝕電位負移，SUS316L不銹鋼和Co-Cr合金的點蝕電位與縫隙腐蝕電位降低，使材料發(fā)生局部腐蝕的敏感性提高，工業(yè)純Ti和Ti-6Al-4V合金的腐蝕電流密度增大，提高離子釋放速度，加大對人體的潛在生理危害。

    Abstract:

    The influence of pH value on corrosion behavior of N ion implanted SUS316L stainless steel, Co Cr alloy, CPTi and Ti 6Al 4V alloy surgery medical materials has been investigated in Hank's solution using electrochemical technology. Experimental results indicate that corrosion potentials of specimens decline, and E b and crevice corrosion potentials of SUS316L stainless steel and Co Cr alloy also decline with decreasing pH value, which results in an increase of the sensibility of local corrosion. The corrosion rates of CPTi and Ti 6Al 4V alloy also increase in Hank's solution with much lower pH value.

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梁成浩 郭亮 等.人工模擬體液中pH值對離子注N人體醫(yī)用合金腐蝕行為的影響[J].稀有金屬材料與工程,2001,(6):433~436.[Liang Chenghao, Guo Liang, Sui Hongyan. Influence of pH Value on Corrosion Behavior of N-ion Implanted Surgery Medical Materials in Artificial Body Fluid[J]. Rare Metal Materials and Engineering,2001,(6):433~436.]
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  • 最后修改日期:2000-07-10
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