Dry sliding wear of a Ti{sub 50}Ni{sub 25}Cu{sub 25} particulate-reinforced aluminum matrix composite
- Dalian Univ. of Technology (China). Dept. of Materials Engineering
- Dalian Maritime Univ. (China)
The objective of this article is to characterize the sliding wear behavior of a 30 vol pct Ti{sub 50}Ni{sub 25}Cu{sub 25} particulate-reinforced aluminum matrix composite under dry conditions. The transformation temperatures of Ti{sub 50}Ni{sub 25}Cu{sub 25} particles were measured before and after the compounding procedure by the differential scanning calorimeter (DSC) method. The wear tests were carried out on a pin-on-disc machine. A 10 vol pct SiC particulate-reinforced composite and pure aluminum were chosen as the comparison specimens. The results indicate that Al-30 vol pct Ti{sub 50}Ni{sub 25}Cu{sub 25} composites exhibit higher wear resistance than their unreinforced matrices and are comparable with Al-10 vol pct SiC composites in this experiment. A self-adaptive mechanism that contributes to the wear resistance of an Al-30 vol pct Ti{sub 50}Ni{sub 25}Cu{sub 25} composite is proposed. Scanning electron microscopy (SEM) and energy diffraction spectrum (EDS) examinations were carried out to investigate the wear mechanism and interface reactions. The results indicate that the interfacial reaction is a predominant factor in determining the wear behavior of the Ti{sub 50}Ni{sub 25}Cu{sub 25}/Al composite.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 634648
- Journal Information:
- Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Vol. 29, Issue 6; Other Information: PBD: Jun 1998
- Country of Publication:
- United States
- Language:
- English
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