In vitro gradual decrease in strength of Ti scaffolds in Hank’s solution upon long-term immersion: Challenges and prospective solutions
Author Identifier
Lai Chang Zhang: https://orcid.org/0000-0003-0661-2051
Document Type
Journal Article
Publication Title
Acta Metallurgica Sinica (English Letters)
Publisher
Springer
School
School of Engineering
Funders
Basic and Applied Basic Research Foundation of Guangdong Province, China (2022A1515140123) / Jiangsu Province Graduate Research and Practice Innovation Program (SJCX24_2504)
Abstract
Although Ti scaffolds offer great potential in orthopedic applications, their porous nature raises new questions, such as low relative density and high surface area. This work investigated the gradual decrease in the strength of Ti scaffolds during long-term immersion in Hank’s solution. After 180-day immersion, the samples have a 23.3% and 26.6% reduction in yield strength and a 9.0% and 11.2% reduction in compressive strength in dynamic and static solutions, indicating potential failure during the long-term service. A large exposure area to the solution leads to a high corrosion rate, which results in the consumption of the scaffolds and, consequently, decreased strength. Although the covered deposits on the scaffolds reduce the ion release to some extent, the scaffolds still have a slowly ongoing decrease in strength. Based on the durability considerations, some methods, such as decreasing porosity and surface treatments, are proposed to alleviate this phenomenon of Ti scaffolds.
DOI
10.1007/s40195-025-01867-5
Access Rights
subscription content
Comments
Zhang, Y. F., Chen, L. Y., Ge, Z. H., Teng, C., Liu, Y., & Zhang, L. C. (2025). In vitro gradual decrease in strength of Ti scaffolds in Hank’s solution upon long-term immersion: Challenges and prospective solutions. Acta Metallurgica Sinica (English Letters). Advance online publication. https://doi.org/10.1007/s40195-025-01867-5