Tribological Properties of NiAl Matrix Composites Filled with Serpentine Powders

Journal Article · Fri Dec 15 04:00:00 EST 2017 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-017-3058-Z· OSTI ID:22860723

Xue, Bing ^[1]; Jing, Peixing ^[2]; Ma, Weidong ^[1]

---

1. Yellow River Conservancy Technical Institute, College of Mechanical Engineering (China)
2. Anhui Science and Technology University, School of Management (China)

The unexplored tribological properties of NiAl matrix composites filled with serpentine powders are investigated using a reciprocating ball-on-disk configuration. Tribological test results reveal that increasing the serpentine concentration to some extent reduces the friction coefficients and wear rates of the composites. The best anti-friction and anti-wear performance is displayed by the NiAl matrix composite filled with 8 wt.% serpentine and 2 wt.% TiC (NAST). Microstructural analyses demonstrate that after adding serpentine, the self-lubricating films with different percentages of coverage form on the worn surfaces of the composites. A self-lubricating film with the highest percentage of coverage smears on the worn surface of NAST. This clearly suggests that serpentine can act as a new type of filler for NiAl matrix composites, whereas a combination of serpentine and TiC can enable serpentine to provide a full play to its excellent lubricating performance.

• OSTI ID: 22860723
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 12 Vol. 26; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM COMPOUNDS
FILLERS
FILMS
FRICTION
FRICTION FACTOR
MATRIX MATERIALS
MICROSTRUCTURE
NICKEL COMPOUNDS
PERFORMANCE
SERPENTINE
SOLID LUBRICANTS
SURFACES
TITANIUM CARBIDES