PSI - Issue 65

E.G. Zemtsova et al. / Procedia Structural Integrity 65 (2024) 310–316 E.G. Zemtsova et al. / Structural Integrity Procedia 00 (2024) 000–000

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Fig. 2. XPS for Ni-TiC: a - sublevel C1; b - Ti2p

At the next stage of the work, samples of a bulk Ni-based composite material containing 5% of the reinforcing phase were manufactured and studied. Figure 3 shows a micrograph of the surface of a composite sample made of Ni grade PNE-1 with the addition of 5% reinforcing phase. The study of unpolished sections of samples makes it possible to assess not only the presence of micron pores, but also to study the sample for the presence of nanoscale pores. The obtained samples of Ni-based metal composite were a massive material with insignificant internal porosity (1%) and zero external porosity (Fig.2). The absence of interfacial boundaries between the particles of the Ni matrix and the carbide nanostructures made it possible to minimize the internal porosity of the sample.

Fig. 3. Micrographs and elemental analysis of a bulk Ni-based composite reinforced with 5% of Ni/Al-TiC composition.