模拟体液中氧含量对316L不锈钢微动疲劳的影响
Effect of Oxygen Concentration in Simulated Body Fluid on Fretting Fatigue of 316L Stainless Steel
摘 要
采用液压伺服疲劳试验机在模拟体液中对人工关节常用316L不锈钢进行了微动疲劳试验，研究了疲劳产生的过程。结果表明：模拟体液中氧含量变化会影响316L不锈钢的微动疲劳寿命，溶解氧质量分数为4%，循环次数为107次时，微动疲劳强度约为110 MPa，溶解氧质量分数为0%，循环次数为3×106次时，微动疲劳强度约为105 MPa；在模拟体液中316L不锈钢的裂纹扩展速率比在大气中的快，因此其微动疲劳寿命比在大气中的短。
模拟体液
微动疲劳
生物材料
氧
316L stainless steel
simulated body fluid
fretting fatigue
biological material
oxygen
Abstract
The fretting fatigue test in simulated body fluid was carried out by hydraulic servo fatigue testing machine for 316L stainless steel which is commonly used as artificial joint material. The results show that the oxygen concentration in the simulated body fluid had an effect on fretting fatigue life of 316L stainless steel. When the mass fraction of dissolved oxygen in simulated body fluid was 4% and the number of cycle was 107, the fretting fatigue strength was about 110 MPa. When the mass fraction of dissolved oxygen was 0% and the number of cycle was 3×106, the fretting fatigue strength was about 105 MPa. The crack growth speed in simulated body fluid was faster than that in air, so the fretting fatigue life was shorter than that in air.
中图分类号 TG172.4 DOI 10.11973/fsyfh-202006010
所属栏目 试验研究
基金项目 嘉兴市科技计划项目（2017AY13005）
收稿日期 2019/11/13
修改稿日期
网络出版日期
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引用该论文: LI Jiwu,ZHANG Hui. Effect of Oxygen Concentration in Simulated Body Fluid on Fretting Fatigue of 316L Stainless Steel[J]. Corrosion & Protection, 2020, 41(6): 48
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参考文献
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【4】李积武. Zr-4合金在Na2SO4溶液中的微动腐蚀特性[J]. 摩擦学学报,2007,27(5):406-410.
【5】斯松华,袁晓敏,徐锟,等. 激光功率对激光熔覆WCP/Ni基金属陶瓷涂层的组织与磨损性能的影响[J]. 中国腐蚀与防护学报,2004,24(3):183-187.
【6】任平弟,陈光雄,周仲荣. 不同水介质润滑下GCr15钢的微动磨损特性[J]. 摩擦学学报,2003,23(4):331-335.
【7】闫建中,吴荫顺,李久青,等. 316L不锈钢微动磨蚀过程力学化学交互作用的迁移行为[J]. 中国腐蚀与防护学报,2001,21(2):88-94.
【8】任平弟,陈光雄,周仲荣. 不同水介质润滑下GCr15钢的微动磨损特性[J]. 摩擦学学报,2003,23(4):331-335.
【9】侯滨,黄伟九,陈波水,等. AZ91D镁合金滑移区域微动磨损机理研究[J]. 摩擦学学报,2004,24(4):351-354.
【10】罗强,邱绍宇,尹开锯,等. Cr6+对321不锈钢在硝酸铀酰溶液中的腐蚀行为影响[J]. 中国腐蚀与防护学报,2008,28(3):113-115.
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【12】李积武,王殿梁. 304不锈钢在Na2SO4溶液中的微动腐蚀行为[J]. 中国腐蚀与防护学报,2010,30(1):11-15.
【13】闫建中,吴荫顺,李久青,等. 316L不锈钢微动磨蚀过程表面钝化膜自修复行为研究[J]. 中国腐蚀与防护学报,2001,21(1):352-360.
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