A high strength, wear and corrosion-resistant, antibacterial and biocompatible Nb-5 at.% Ag alloy for dental and orthopedic implants

Wan，Tian1; Chu，Kangjie1; Fang，Ju1; Zhong，Chuanxin1; Zhang，Yiwen1; Ge，Xiang2; Ding，Yonghui3; Ren，Fuzeng1

2021-07-30

10.1016/j.jmst.2020.11.049

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY   影响因子和分区

1005-0302

Refractory metal niobium (Nb) incorporated with a small amount of silver (Ag), the resulting Nb-Ag two-phase alloys, were fabricated by mechanical alloying and spark plasma sintering. The microstructure, mechanical properties, wear resistance, corrosion behavior, in vitro and in vivo antibacterial properties and biocompatibility of the Nb-Ag alloys were systematically investigated. The results show that the mechanical properties, wear resistance, corrosion resistance and antibacterial ability were significantly enhanced after addition of 5 at.% Ag. The fabricated Nb-5 at.% Ag alloy demonstrates high yield strength of up to similar to 1486 MPa and fracture strain of similar to 35 %. The precipitated Ag particles could reduce friction and wear. The enhanced corrosion resistance was attributed to the higher relative density of the sintered alloys and the formation of a stable and dense passive film of niobium and silver oxides. In vitro and in vivo evaluations show that the Nb-5 at.% Ag alloy also has strong antibacterial activity and good biocompatibility and osteointegration ability. These results demonstrate great potential of the nanostructured Nb-Ag alloys for dental and orthopedic implants. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.

Nb-Ag alloys Wear Corrosion Antibacterial Biocompatibility

SCI ; EI

英语

第一 ; 通讯

Natural Science Foundation of Guangdong[2019A1515011755] ; Fundamental Research Program of Shenzhen["JCYJ20170412153039309","JCYJ20170307110418960"] ; Natural Science Foundation of Tianjin, China[18JCYBJC19500]

Materials Science ; Metallurgy & Metallurgical Engineering

Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000656122300024

JOURNAL MATER SCI TECHNOL

20210209752447

Binary alloys ; Biocompatibility ; Corrosion resistance ; Corrosion resistant alloys ; Corrosive effects ; Dental alloys ; High strength alloys ; Niobium alloys ; Refractory metals ; Silver oxides ; Sintering ; Wear of materials ; Wear resistance

Immunology:461.9.1 ; Dental Equipment and Supplies:462.3 ; Metallurgy and Metallography:531 ; Metallurgy:531.1 ; Metals Corrosion:539.1 ; Precious Metals:547.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Chemical Products Generally:804 ; Physical Properties of Gases, Liquids and Solids:931.2

MATERIALS SCIENCE

Web of Science

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,China
2.Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education,School of Mechanical Engineering,Tianjin University,Tianjin,300354,China
3.Center for Advanced Regenerative Engineering,Department of Biomedical Engineering,Northwestern University,Evanston,60208,United States

Wan，Tian,Chu，Kangjie,Fang，Ju,et al. A high strength, wear and corrosion-resistant, antibacterial and biocompatible Nb-5 at.% Ag alloy for dental and orthopedic implants[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,80:266-278.

Wan，Tian.,Chu，Kangjie.,Fang，Ju.,Zhong，Chuanxin.,Zhang，Yiwen.,...&Ren，Fuzeng.(2021).A high strength, wear and corrosion-resistant, antibacterial and biocompatible Nb-5 at.% Ag alloy for dental and orthopedic implants.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,80,266-278.

Wan，Tian,et al."A high strength, wear and corrosion-resistant, antibacterial and biocompatible Nb-5 at.% Ag alloy for dental and orthopedic implants".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 80(2021):266-278.