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Collaborative Impact of Cryo-Treated Cutting Tool and Hybrid Milling Environment Towards Improved Sustainable Milling of ASTM F2063 Ni55.6Ti44.4 Alloy
被引:0
|作者:
Rahul Davis
Abhishek Singh
Robson Bruno Dutra Pereira
Roberta Maia Sabino
Ketul Popat
Paulo Soares
Lincoln Cardoso Brandão
机构:
[1] Sam Higginbottom University of Agriculture,Department of Mechanical Engineering, Vaugh Institute of Agricultural Engineering and Technology
[2] Technology and Sciences,Department of Mechanical Engineering
[3] National Institute of Technology Patna,Department of Mechanical and Production Engineering, Centre for Innovation in Sustainable Manufacturing
[4] Federal University of São João del-Rei,CIMS
[5] Massachusetts Institute of Technology,Institute for Medical Engineering and Science
[6] Colorado State University,School of Advanced Materials Discovery
[7] Colorado State University,School of Biomedical Engineering
[8] Colorado State University,Department of Mechanical Engineering
[9] Pontifícia Universidade Católica Do Paraná,Department of Mechanical Engineering
[10] R. Imaculada Conceicao,undefined
关键词:
Cryo-treated cutting tool;
Wet, cryo, and hybrid milling environment;
ASTM F2063 Ni;
Ti;
alloy;
Surface roughness;
Microhardness;
Bioactivity;
D O I:
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中图分类号:
学科分类号:
摘要:
Shape memory alloys are mainly used in medical devices and surgical implants due to their biocompatibility. Machining these alloys into intricate patterns can be challenging due to their poor thermal conductivity which could lead to a poor surface finish. The poor surface finish causes a release of toxic elements such as Nickel, leading to contact allergies and thus deteriorating its biocompatibility. Using the right cooling technology can help improve their machinability and overcome issues related to surface integrity. The current study investigates the effect of milling parameters (cutting-speed, feed rate, and depth of cut) and different cooling strategies (flood coolant, cryogenic liquid nitrogen, and a hybrid approach) on the surface integrity of F2063 Ni55.6Ti44.4 shape memory alloy. In addition, the effect of cryogenically treating the cutting tool for further enhancement of surface finish was investigated. A considerable modification on the milled surfaces was observed when using the hybrid cooling/milling approach and cryo-treated tools in terms of morphological, chemical compositional, crystallographic, and microhardness. In addition, this modified surface had a noticeably improved bioactivity due to enhanced hydrophobicity (with contact angle 92°) and surface topography (Ra: 341.69 nm), which favoured cell adhesion and proliferation. The results indicate that the modified Ni55.6Ti44.4 alloy surface might be adequate for use in medical applications.
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页码:1485 / 1509
页数:24
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