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Updated: Jul 28, 2025
08:43
Potentiodynamic Corrosion Testing
Published on: September 4, 2016
17.7K
在关节整形术中使用金属腐蚀
Chinedu C Ude1,2,3, Godwin K Dzidotor1,2,3,4,5,6, Kamsiyochukwu Iloeje1,2,3
1The Cato T. Laurencin Institute for Regenerative Engineering, Farmington, Connecticut 06030, USA.
ACS applied bio materials
|June 1, 2023
概括
关节整形植入物因材料和磨损而面临腐蚀. 了解生物-三角腐蚀机制是开发未来材料和设计以改善植入物寿命的关键.
科学领域:
- 生物材料科学 生物材料科学
- 整形外科手术 整形外科手术
- 材料科学 材料科学 材料科学
背景情况:
- 关节塑造植入物易受模块化结口,杆和链的腐蚀的影响.
- 腐蚀受植入物材料组成,微运动和生理环境的影响.
- 生物腐蚀,是一种磨损和腐蚀的组合,对植入物耐用性构成重大挑战.
研究的目的:
- 审查和探索关节塑形术中的各种腐蚀机制.
- 建议潜在的改进和策略,以减轻腐蚀.
- 为了突出关节更换中腐蚀的电化学性质.
主要方法:
- 关于关节塑形术中腐蚀机制的文献综述.
- 10种不同的腐蚀类型的识别和分类.
- 分析影响植入物寿命的因素,如系列位置和被动化.
主要成果:
- 确定了十种腐蚀机制:坑,裂,机械辅助的裂腐蚀,纹,纹引起的裂腐蚀,机械辅助的纹腐蚀,电腐蚀,应力/张力,疲劳腐蚀和炎症细胞诱导的腐蚀.
- 腐蚀始于接口,这是由于生物腐蚀破坏被动氧化物薄膜而引起的.
- 腐蚀通过三个电化学步骤进行:氧化溶解,电子吸引和氧化物/氧化物的形成.
结论:
- 尽管有材料创新,关节塑料组件仍然容易受到生物-三角腐蚀的影响.
- 未来消除腐蚀需要先进的材料,改进的设计和表面处理.
- 从提取的植入物中获得的知识对于开发下一代耐腐蚀关节塑形解决方案至关重要.
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