Microstructure of Al–Ti–C master alloy triggered by rare-earth Ce
Source abstract
Abstract
Fabrication of Al–Ti–C master alloys has long been considered to be confined to poor wettability between graphite and molten aluminum. Here, by using X-ray diffractometer, scanning electron microscope and transmission electron microscope as probes, we unveil the effect of Ce on Al–5Ti–0.25C microstructure in detail. This study demonstrates that the formation of Ti2Al20Ce originates from Ce atoms doped in TiAl3lattice and their interface presents a vague and non-splittable state filled with considerable dislocations. The formation nature of Ti2Al20Ce is the only planner in the formation of enwrapped-like structure of Ti2Al20Ce enwrapped around TiAl3. Due to the above reason, Ce is endowed with an outstanding modification effect on TiAl3and thus TiAl3morphology changes from long-strip to block-like based on statistics of aspect ratio and mean area. XRD quantitative calculation demonstrates that 1 wt% Ce would rapidly increase TiC content from 0.36 to 0.92 wt%.Graphical abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · Aluminum Alloys Composites Properties · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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