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Laser Additive Manufacturing of (Ti-6Al-4V)/10 wt.% Ag Composite Using Spherical Powders to Reduce Wear and Friction

  • Xiaoxue Li
  • Kang Yang
  • Haibo Lin
  • Hongru Ma
  • Yukun Han
  • Qiang He
Article
  • 68 Downloads

Abstract

In order to extend the service lifetime of Ti-6Al-4V-based components, friction and wear behaviors of Ti-6Al-4V alloys needed to be further improved. Laser additive manufacturing with a moving laser beam was used to prepare (Ti-6Al-4V)/10 wt.% Ag samples, on a three-dimensional RC-SLM400 printer with laser powers of 2-10 kW. (Ti-6Al-4V)/10 wt.% Ag samples were successfully printed using spherical powders prepared by gas atomization process (SPGAP) and combustion reaction (SP-CR). The tribological properties of the as-prepared samples sliding against Si3N4 balls were examined using a ball-on-disk tribometer. The results showed that the tribological behavior of (Ti-6Al-4V)/10 wt.% Ag printed by SP-CR was better than that of the sample printed by SPGAP. The low friction and reduced wear were mainly attributed to the formation of the lubrication layer containing large amounts of silver, which can exhibit an excellent deformation and plastic ductility. It effectively reduced the friction resistance and material loss and provided the good lubrication for 0-80 min, resulting in low friction and reduced wear of the samples prepared by SP-CR.

Keywords

3D printing combustion synthesis sliding wear spherical particle 

Notes

Acknowledgments

This research is supported by the Doctoral start-up funding (BSJ2018005), talent introduction project of Sichuan University of Science and Engineering (2016RCL04), Science research project in Inner Mongolia autonomous region for institution of higher learning (NJZZ16369) and the foundations of Henan Educational Committee (16A460001 and 19A460011); authors are also grateful to Beijing Opton Optical Technology Co., Ltd and Nanjing XFNANO Materials Tech Co., Ltd for their kind help with powders.

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Copyright information

© ASM International 2018

Authors and Affiliations

  1. 1.School of Mechanical and Traffic EngineeringOrdos Institute of TechnologyOrdosChina
  2. 2.School of Mechanical and Electronic EngineeringWuhan University of TechnologyWuhanChina
  3. 3.School of Mechanical EngineeringSichuan University of Science and EngineeringZigongChina
  4. 4.Department of Mechanical EngineeringAnyang Institute of TechnologyAnyangChina

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