PSI - Issue 47

D. Pilone et al. / Procedia Structural Integrity 47 (2023) 901–907 Author name / Structural Integrity Procedia 00 (2019) 000–000

903

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them (Fig. 2). As it can be clearly observed by this figure, agglomerated particles are characterized by different size and shape.

Table 1. Average composition of the TiAl based alloy. An example of a column heading

Weight (%)

Atom (%)

Al Ti Cr

32.32 59.93

46.80 48.88

3.20 4.55

2.40 1.92

Nb

Fig. 1. SEM micrograph(a) and optical micrograph (b) of the produced alloy.

Fig. 2. SEM micrograph of the produced alloy highlighting the EDS analysis of black particles.

Over the last few years different types of dispersoids were tested with good results in terms of mechanical performances. In a previous work the effect of 3% vol alumina on TiAl based alloy was studied (Pilone et al. (2020)). In order to compare the results obtained by adding 2% vol Al 2 O 3 to the studied alloy image analysis has been performed on several samples. Fig.3 shows the results this analysis.