Impact of Microstructural and Surface Modifications on the Ti-45Nb Alloy’s Response to Bio-Environment

IF 2.9 2区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Acta Metallurgica Sinica-English Letters Pub Date : 2024-04-22 DOI:10.1007/s40195-024-01705-0

Ivana Cvijović-Alagić, Slađana Laketić, Miloš Momčilović, Jovan Ciganović, Jelena Bajat, Vesna Kojić

{"title":"Impact of Microstructural and Surface Modifications on the Ti-45Nb Alloy’s Response to Bio-Environment","authors":"Ivana Cvijović-Alagić, Slađana Laketić, Miloš Momčilović, Jovan Ciganović, Jelena Bajat, Vesna Kojić","doi":"10.1007/s40195-024-01705-0","DOIUrl":null,"url":null,"abstract":"<div><p>The Ti-45Nb (mass%) alloy’s corrosive and biocompatible response in simulated physiological conditions was investigated before and after its additional high-pressure torsion (HPT) and laser irradiation processing. The grain size reduction from 2.76 µm to ~ 200 nm and the appearance of laser-induced morphologically altered and highly oxidized surface led to the significant improvement of alloy corrosion resistance and cell–implant interaction. Moreover, an additional increase of the laser pulse energy from 5 to 15 mJ during the alloy irradiation in the air led to an increase in the surface oxygen content from 13.64 to 23.89% accompanied by an increase of excellent cell viability from 127.18 to 134.42%. As a result of the controlled alloy microstructural and surface modifications, the formation of protective bi-modal mixed Ti- and Nb-oxide external scale was enabled. The presence of this surface oxide scale enhanced the alloy’s resistance to corrosion deterioration and simultaneously boosted cell viability and proliferation.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"37 7","pages":"1215 - 1230"},"PeriodicalIF":2.9000,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Metallurgica Sinica-English Letters","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1007/s40195-024-01705-0","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}

引用次数: 0

Abstract

The Ti-45Nb (mass%) alloy’s corrosive and biocompatible response in simulated physiological conditions was investigated before and after its additional high-pressure torsion (HPT) and laser irradiation processing. The grain size reduction from 2.76 µm to ~ 200 nm and the appearance of laser-induced morphologically altered and highly oxidized surface led to the significant improvement of alloy corrosion resistance and cell–implant interaction. Moreover, an additional increase of the laser pulse energy from 5 to 15 mJ during the alloy irradiation in the air led to an increase in the surface oxygen content from 13.64 to 23.89% accompanied by an increase of excellent cell viability from 127.18 to 134.42%. As a result of the controlled alloy microstructural and surface modifications, the formation of protective bi-modal mixed Ti- and Nb-oxide external scale was enabled. The presence of this surface oxide scale enhanced the alloy’s resistance to corrosion deterioration and simultaneously boosted cell viability and proliferation.

Abstract Image

查看原文本刊更多论文

微结构和表面改性对 Ti-45Nb 合金对生物环境反应的影响

研究了Ti-45Nb（质量百分数）合金在模拟生理条件下的腐蚀性和生物相容性，以及在经过额外的高压扭转（HPT）和激光辐照处理前后的反应。晶粒尺寸从 2.76 µm 减小到约 200 nm，并出现了激光诱导的形态改变和高度氧化表面，从而显著提高了合金的耐腐蚀性和细胞与植入物的相互作用。此外，在空气中对合金进行辐照时，将激光脉冲能量从 5 mJ 提高到 15 mJ，可使表面氧含量从 13.64% 提高到 23.89%，同时使细胞存活率从 127.18% 提高到 134.42%。由于对合金微观结构和表面进行了可控改性，形成了保护性双模钛和铌混合氧化物外部鳞片。这种表面氧化物鳞片的存在增强了合金的抗腐蚀性，同时提高了细胞活力和增殖能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Acta Metallurgica Sinica-English Letters METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

6.60

自引率

14.30%

发文量

122

审稿时长

2 months

期刊介绍： This international journal presents compact reports of significant, original and timely research reflecting progress in metallurgy, materials science and engineering, including materials physics, physical metallurgy, and process metallurgy.