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采用生理溶液浸泡方法和电化学试验法,研究316L不锈钢在人工汗液、人工体液、人工唾液和尿液中的腐蚀行为及镍释放率。结果表明,316L不锈钢在不同生理溶液中的镍释放率呈现“人工体液>人工汗液>尿液>人工唾液”的顺序,固溶抛光态的316L不锈钢在四种生理溶液中的镍释放率均低于0.11μg/cm~2/week,满足EN1811:2011要求;但当它处于冷变形态时,镍离子释放率出现不同程度的增加,在人工体液、人工汗液和尿液三种生理环境中出现了对穿刺饰品的不确定性。
The physiological solution immersion method and electrochemical test were used to study the corrosion behavior and release rate of 316L stainless steel in artificial sweat, artificial body fluid, artificial saliva and urine. The results showed that the release rate of Ni in 316L stainless steel in different physiological solutions showed the order of “artificial body fluid> artificial sweat> urine> artificial saliva”. The release rate of nickel in 316L stainless steel in solution and polishing state in four physiological solutions Were lower than 0.11μg / cm ~ 2 / week, which met the requirements of EN1811: 2011. However, when it was in the cold deformation state, the release rate of nickel ions increased to some extent. Under the physiological conditions of artificial body fluid, artificial sweat and urine Appeared in the piercing jewelry uncertainty.