Fabrication, tribological and corrosion behaviors of ultra-fine grained Co-28Cr-6Mo alloy for biomedical applications

Ren, Fuzeng; Zhu, Weiwei; Chu, Kangjie

2016-07

10.1016/j.jmbbm.2015.12.039

Journal of the Mechanical Behavior of Biomedical Materials   影响因子和分区

1751-6161

1878-0180

Nickel and carbides free Co-28Cr-6Mo alloy was fabricated by combination of mechanical alloying and warm pressing. The microstructure, mechanical properties, pin-on-disk dry sliding wear and corrosion behavior in simulated physiological solution were investigated. The produced Co-28Cr-6Mo alloy has elongated ultra-fine grained (UFG) structure of s-phase with average grain size of 600 nm in length and 150 nm in thickness. The hardness and modulus were determined to be 8.87 +/- 0.56 GPa and 198.27 +/- 7.02 GPa, respectively. The coefficient of friction upon dry sliding against alumina is pretty close to that of the forged Co-29Cr-6Mo alloy. The initial e-phase and UFG microstructure contribute to reduce the depth of severe plastic deformation region during wear and enable the alloy with excellent wear resistance. The corrosion potential of such UFG Co-Cr-Mo alloy has more positive corrosion potential and much lower corrosion current density than those of ASTM alloy. (C) 2016 Elsevier Ltd. All rights reserved.

Mechanical alloying Co-Cr-Mo alloy Wear Corrosion

SCI ; EI

英语

第一 ; 通讯

Special Funds for Fundamental Research of Strategic Emerging Industries of Shenzhen, China[JCYJ20150331101823688]

Engineering ; Materials Science

Engineering, Biomedical ; Materials Science, Biomaterials

WOS:000378969100013

ELSEVIER SCIENCE BV

20160401850554

Alumina ; Aluminum oxide ; Carbides ; Chromium alloys ; Corrosion ; Corrosive effects ; Fabrication ; Friction ; Mechanical alloying ; Medical applications ; Microstructure ; Molybdenum alloys ; Nickel compounds ; Ternary alloys ; Wear of materials ; Wear resistance

Metallurgy and Metallography:531 ; Metals Corrosion:539.1 ; Chromium and Alloys:543.1 ; Molybdenum and Alloys:543.3 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Inorganic Compounds:804.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

Web of Science

South Univ Sci & Technol China, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China

Ren, Fuzeng,Zhu, Weiwei,Chu, Kangjie. Fabrication, tribological and corrosion behaviors of ultra-fine grained Co-28Cr-6Mo alloy for biomedical applications[J]. Journal of the Mechanical Behavior of Biomedical Materials,2016,60:139-147.

Ren, Fuzeng,Zhu, Weiwei,&Chu, Kangjie.(2016).Fabrication, tribological and corrosion behaviors of ultra-fine grained Co-28Cr-6Mo alloy for biomedical applications.Journal of the Mechanical Behavior of Biomedical Materials,60,139-147.

Ren, Fuzeng,et al."Fabrication, tribological and corrosion behaviors of ultra-fine grained Co-28Cr-6Mo alloy for biomedical applications".Journal of the Mechanical Behavior of Biomedical Materials 60(2016):139-147.