Static-Structural Analysis of Gas Turbine Blade Fabricated with Titanium Based MAX Phase Materials


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Bal E., Karabaş M.

International Journal of Scientific & Engineering Research, vol.13, pp.10-14, 2022 (Conference Book)

Abstract

Gas turbines are widely used in the aviation, marine, and energy industries. Gas Turbine engine parts are generally made of Ni-based superalloys, but their service temperatures are limited. Max phase materials is a candidate material for turbine blades. Therefore, if the turbine blade is produced from the MAX phase, various analyzes have been made with the Aysys 2020 R2 program to obtain information about the static and structural properties of this produced material. In Ansys program; boundary conditions were determined such that rotational velocity (in the X axis) was 1000 rad/s, thermal condition was 1000 ºC, and pressure was 1 MPa. Total deformation, equivalent stress, and equivalent elastic strain datas of max phase materials (such as Ti2AlC, Ti3AlC2, Ti4AlN3, and Ti3SiC2) analyzed with Ansys were compared with the actual data of the commercial product CMSX4. The material with the least total deformation was Ti3SiC2 (5.94 μm) which was 8 times less deformed than CMSX4 (49.58 μm). The material with the least equivalent stress value was Ti2AlC with 9.97 MPa. The material with the highest ductility was CMSX4, with an elastic stress value of 2.56e-4 μm/μm, while the material with the closest ductility was Ti4AlN3 with a value of 3.91e-5 μm/μm. In other words, CMSX4 is 1.78 times more ductile than Ti4AlN3. As a result, according to the study, it was seen that max phase materials are more brittle than CMSX4, although it is actually candidate materials for turbine blades due to lower density, high temperature stability.