Abstract
Ti-Mo, Ti-Nb and Ti-Cr alloys were fabricated by using tungsten electrode melting and centrifugal casting. The dry wear resistance of Ti-Mo, Ti-Nb and Ti-Cr alloys against Gr15 ball was investigated on CJS111A ball-disk wear instrument. The influence of alloy element on wear resistance of alloys was investigated. Worn surface morphologies and cross-section profiles of the wear tracks of the samples were observed on a scanning electron microscope and electron microprobe analyzer. Wear mechanism of Ti-Mo, Ti-Nb and Ti-Cr alloys was analyzed. When the weight fraction of elements Mo, Nb and Cr was 5%, friction coefficients of Ti-5Mo, Ti-5Nb and Ti-5Cr alloys were nearly the same. When the weight fraction of elements Mo, Nb and Cr was 10%, friction coefficients of Ti-10Mo and Ti-10Nb alloys exhibited little difference and that of Ti-10Cr alloy was the largest. The wear scar depth of Ti-5Nb alloy was the smallest and that of Ti-5Cr alloy was the largest. Wear of Ti-Mo and Ti-Nb alloys was characterized by adhesion and abrasive wear, while wear of Ti-Cr alloys was characterized by abrasive wear.
| Original language | English |
|---|---|
| Pages (from-to) | 246-251 |
| Number of pages | 6 |
| Journal | Tribology |
| Volume | 27 |
| Issue number | 3 |
| State | Published - May 2007 |
| Externally published | Yes |
Keywords
- Centrifugal cast
- Dry friction
- Titanium alloys
- Wear resistance
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