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Review of recent developments in surface nanocrystallization of metallic biomaterials
Nanoscale ( IF 5.8 ) Pub Date : 2020-12-28 , DOI: 10.1039/d0nr07566c Srijan Acharya 1, 2, 3, 4 , Satyam Suwas 1, 2, 3, 4 , Kaushik Chatterjee 1, 2, 3, 4
Nanoscale ( IF 5.8 ) Pub Date : 2020-12-28 , DOI: 10.1039/d0nr07566c Srijan Acharya 1, 2, 3, 4 , Satyam Suwas 1, 2, 3, 4 , Kaushik Chatterjee 1, 2, 3, 4
Affiliation
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Metallic materials are widely used to prepare implants for both short-term and long-term use in the human body. The performance of these implants is greatly influenced by their surface characteristics, which has motivated the development of several surface modification techniques. Surface severe plastic deformation (S2PD) techniques have emerged as promising strategies to enhance the performance of metallic biomaterials. They do not involve chemical modification of the surface and impart minimal changes to the surface topography. S2PD processes are based on the principle of generating nanocrystals at the surface, which can improve performance metrics, such as fatigue, wear, corrosion resistance, and biocompatibility through various mechanisms, such as surface hardening and alterations to the surface oxide layer. This review presents the state of the art on the development of different S2PD processes and their applications on metallic biomaterials. Brief descriptions of the different processes have been provided, followed by a discussion on the microstructural changes induced by these processes for different generations of biomaterials. The effect of S2PD on surface and bulk characteristics of the biomaterials and their performance is critically reviewed. As an emerging class of surface engineering techniques in biomaterials science, more work is needed to fully leverage their potential in this field, and these opportunities are discussed in this review.
中文翻译：
金属生物材料表面纳米结晶的最新进展综述
金属材料被广泛用于制备在人体中短期和长期使用的植入物。这些植入物的性能在很大程度上受到其表面特性的影响，从而推动了几种表面改性技术的发展。表面严重塑性变形（S 2 PD）技术已经成为增强金属生物材料性能的有前途的策略。它们不涉及表面的化学改性，并且使表面形貌的变化最小。小号2PD工艺基于在表面生成纳米晶体的原理，该原理可以通过各种机制（例如表面硬化和表面氧化层的改变）来提高性能指标，例如疲劳，磨损，耐腐蚀和生物相容性。这篇综述介绍了不同S 2 PD工艺的发展及其在金属生物材料上的应用领域。提供了不同过程的简要说明，然后讨论了这些过程对不同世代生物材料引起的微观结构变化。S 2的作用关于生物材料的表面和体积特性及其性能的PD受到严格审查。作为生物材料科学领域新兴的一类表面工程技术，需要更多的工作来充分利用它们在该领域的潜力，并且本文将对这些机会进行讨论。
更新日期：2021-01-22
中文翻译：
金属生物材料表面纳米结晶的最新进展综述
金属材料被广泛用于制备在人体中短期和长期使用的植入物。这些植入物的性能在很大程度上受到其表面特性的影响，从而推动了几种表面改性技术的发展。表面严重塑性变形（S 2 PD）技术已经成为增强金属生物材料性能的有前途的策略。它们不涉及表面的化学改性，并且使表面形貌的变化最小。小号2PD工艺基于在表面生成纳米晶体的原理，该原理可以通过各种机制（例如表面硬化和表面氧化层的改变）来提高性能指标，例如疲劳，磨损，耐腐蚀和生物相容性。这篇综述介绍了不同S 2 PD工艺的发展及其在金属生物材料上的应用领域。提供了不同过程的简要说明，然后讨论了这些过程对不同世代生物材料引起的微观结构变化。S 2的作用关于生物材料的表面和体积特性及其性能的PD受到严格审查。作为生物材料科学领域新兴的一类表面工程技术，需要更多的工作来充分利用它们在该领域的潜力，并且本文将对这些机会进行讨论。
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