Wear Resistance of (Diamond-Ni)-Ti6Al4V Gradient Materials Prepared by Combined Selective Laser Melting and Spark Plasma Sintering Techniques

Table 1

Composition of samples and SPS sintering conditions.

Sample	Composition, wt. %	Diamond grain size, μm	Extent of Ni coating on D particle, wt. % [8]	Sintering pressure, MPa	Duration of sintering, min
1	29D-37Ni-34TA	40-50	56	50	9
2	29D-37Ni-34TA	6-12	56	100	6
3	29D-13Ni-58TA	40-50	30	50	9
4	29D-13Ni-58TA	20-30	30	100	6
5	26D-32Ni-24TA-18L	6-12	56	100	6
6	26D-11Ni-45TA-18L	20-30	30	100	6
7	100TA	Not-included	Not-included	50	10

- Preheating was performed at 260°C, 10 MPa and 6 Min. Sintering was done at 860°C for samples No. 1-6 and 1000°C for No. 7.
- D=diamond, TA= Ti6Al4V titanium alloy powder, and L is added in case of Ti6Al4V lattice.
- For No. 5 and No. 6, the average composition is stated due to gradient configuration.