Akademik Veri Yönetim Sistemi
4. Internatıonal Üsküdat Scıentıfıc Research Congress 29-30 November 2024 İstanbul / Türkiye, İstanbul, Türkiye, 29 Kasım - 30 Aralık 2024, ss.1-11
The analysis of microstructural properties of metal matrix composites
(MMC) by advanced characterisation techniques is critical for assessing the
final performance characteristics of the produced materials. For instance, it
is essential to analyse the metallurgical bonding that occurs by diffusion at
the interface between the reinforcement phase and matrix using advanced
characterisation techniques. This study conducted advanced microstructural
characterisations of compositionally graded Ti6Al4V/graphite composites
produced via the hot press method, utilising bright field imaging transmission
electron microscopy (TEM), energy dispersive spectrometry (EDS), and selected
area electron diffraction (SAED). In the TEM images, micron and
sub-micron-sized graphite particles were observed at the boundaries of Ti6Al4V
particles. Furthermore, the TEM images indicated that the graphite particles
measuring 1 micron and larger, had a more irregular morphology, while the
nanometre-sized graphite particles displaced a spherical morphology. No macro
or micro flaws, such as cracks, segregation, or porosity, were identified at
the interface of Ti6Al4V and graphite. Intermetallic phases were observed at
the interface of Ti6Al4V and graphite at micron and submicron scales,
specifically recognised as the TiC intermetallic phase using SAED analysis. EDS
analysis confirmed the presence of the TiC intermetallic phase, indicating the
formation of a strong metallurgical bond between Ti6Al4V and graphite.
Keywords:
Ti6Al4V, Graphite, TEM, EDS, SAED, TiC