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

Journal Article · Tue Jan 15 04:00:00 EST 2019 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-018-3743-6· OSTI ID:22971045

Li, Xiaoxue ^[1]; Yang, Kang; Lin, Haibo ^[2]; Ma, Hongru; Han, Yukun; He, Qiang ^[3]

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1. Ordos Institute of Technology, School of Mechanical and Traffic Engineering (China)
2. Sichuan University of Science and Engineering, School of Mechanical Engineering (China)
3. Anyang Institute of Technology, Department of Mechanical Engineering (China)

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 Si{sub 3}N{sub 4} 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.

• OSTI ID: 22971045
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 1 Vol. 28; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADDITIVES
CHROMIUM ALLOYS
FRICTION
LASERS
MANUFACTURING
POWDERS
SILICON NITRIDES
SILVER
THREE-DIMENSIONAL LATTICES
VANADIUM BASE ALLOYS
WEAR