The influence of process parameters on corrosion behavior of Ti6Al4V alloy processed by selective laser melting
Source abstract
Abstract
Ti6Al4V alloy exhibits good biocompatibility and has a wide range of applications in the medical fields. Additive manufacturing, especially selective laser melting (SLM), provides a new and effective way for the fabrication of Ti6Al4V alloy biological components. The corrosion resistance of SLM processed Ti6Al4V alloy needs further investigation, which is important for the application of biological components. In this study, Ti6Al4V alloy was fabricated by SLM using different process parameters. Electrochemical measurements including open circuit potential, potentiodynamic polarization, and electrochemical impedance spectroscopy were performed to study the influence of laser scan speed on the corrosion behavior of SLM fabricated Ti6Al4V specimens. The corrosion resistance on different planes of SLM fabricated Ti6Al4V alloy was further characterized. The electrochemical measurements indicated that the corrosion resistance was reduced as the laser scan speed increased. Microstructure analysis suggested that the inferior corrosion resistance under a high laser scan speed was related to the decreased densification behavior. Compared to the XZ-plane, the XY-plane possesses a superior corrosion resistance. The anisotropic corrosion resistance on XY- and XZ-planes of SLM fabricated Ti6Al4V alloys is attributed to the different microstructures on different planes, where more α′ martensite and less β-Ti phase were formed on the XZ-plane than on the XY-plane.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Additive Manufacturing and 3D Printing Technologies · Titanium Alloys Microstructure and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University 1 , 356 East Beijing Road, 200001 Shanghai, China
Yongjia Clinic, Shanghai Stomatological Hospital, Fudan University 2 , 458 Yongjia Road, 200031 Shanghai, China
References (28)
Show source-provided references
1. Additive manufacturing: Technology, applications and research needs10.1007/s11465-013-0248-8 ↗
2. Continuous liquid interface production of 3D objects10.1126/science.aaa2397 ↗
3. Selective laser melting of titanium alloys and titanium matrix composites for biomedical applications: A review10.1002/adem.201500419 ↗
4. Heat treatment of Ti6Al4V produced by selective laser melting: Microstructure and mechanical properties10.1016/j.jallcom.2012.07.022 ↗
5. Consolidation phenomena in laser and powder-bed based layered manufacturing10.1016/j.cirp.2007.10.004 ↗
6. Laser additive manufacturing of metallic components: Materials, processes and mechanisms10.1179/1743280411Y.0000000014 ↗
7. Selective laser melting of nano-TiB2 decorated AlSi10Mg alloy with high fracture strength and ductility10.1016/j.actamat.2017.02.062 ↗
8. Rapid fabrication of bulk-form TiB2/316L stainless steel nanocomposites with novel reinforcement architecture and improved performance by selective laser melting10.1016/j.jallcom.2016.04.156 ↗
9. Laser additive manufacturing of nano-TiC reinforced Ni-based nanocomposites with tailored microstructure and performance10.1016/j.compositesb.2018.12.146 ↗
10. The effect of laser remelting on the surface chemistry of Ti6Al4V components fabricated by selective laser melting10.1016/j.jmatprotec.2016.01.022 ↗
11. Applied surface science influence of heat treatment on corrosion behavior of rare earth element Sc modified Al-Mg alloy processed by selective laser melting10.1016/j.apsusc.2020.145330 ↗
12. Preliminary evaluation of porous metal surfaced titanium for orthopedic implants10.1002/jbm.820040407 ↗
13. The corrosion behaviour of as-welded and post-weld heat treated Ti6Al4V alloy in simulated body fluid10.1016/j.matlet.2019.07.056 ↗
14. Machining induced surface integrity in titanium and nickel alloys: A review10.1016/j.ijmachtools.2010.11.003 ↗
15. Biomedical applications of titanium and its alloys10.1007/s11837-008-0031-1 ↗
16. Selective laser melting of titanium parts: Influence of laser process parameters on macro- and microstructures and tensile property10.1016/j.powtec.2018.09.090 ↗
17. The influence of building direction on the fatigue crack propagation behavior of Ti6Al4V alloy produced by selective laser melting10.1016/j.msea.2019.138409 ↗
18. Effect of heat treatment on the phase transformation and mechanical properties of Ti6Al4V fabricated by selective laser melting10.1016/j.jallcom.2018.06.076 ↗
19. Effect of thermal treatment and fluoride ions on the electrochemical corrosion behavior of selective laser melted CoCrW alloy10.1016/j.jallcom.2017.09.318 ↗
20. Corrosion and tribocorrosion behaviour of Ti6Al4V produced by selective laser melting and hot pressing in comparison with the commercial alloy10.1016/j.jmatprotec.2018.11.008 ↗
21. Distinction in corrosion resistance of selective laser melted Ti-6Al-4V alloy on different planes10.1016/j.corsci.2016.06.009 ↗
22. Tribological, electrochemical and biocompatibility properties of Ti6Al4V alloy produced by selective laser melting method and then processed using gas nitriding, CN or Ti-C:H coating treatments10.1016/j.surfcoat.2018.07.011 ↗
23. Passive and transpassive behaviour of CoCrMo in simulated biological solutions10.1016/j.electacta.2003.12.043 ↗
24. On the study of keyhole-mode melting in selective laser melting process10.1016/j.ijthermalsci.2019.105992 ↗
25. Densification behavior, microstructure evolution, and wear performance of selective laser melting processed commercially pure titanium10.1016/j.actamat.2012.04.006 ↗
26. Corrosion of additively manufactured alloys: A review10.5006/2926 ↗
27. Selective laser melting of rare earth element Sc modified aluminum alloy: Thermodynamics of precipitation behavior and its influence on mechanical properties10.1016/j.addma.2018.07.002 ↗
28. Analysis of defect generation in Ti-6Al-4V parts made using powder bed fusion additive manufacturing processes10.1016/j.addma.2014.08.002 ↗