In this study, the composition templating theory for heterogeneous nucleation was applied to achieve TiB2 particles with Mn segregation on surface, which supplied initial nucleation. The interfacial of added alloy element and other common impurities, such as Fe Si, investigated scanning transmission electron microscopy (STEM). modified in Al-2.0Mn-1.0Fe alloys test its effects grain refinement ...

The refinement of Al alloys by TiB2 has been extensively investigated for decades, both in industry and academia. In order to achieve higher grain potency, it is known that other solutes must be added alongside TiB2, thus tailoring the heterogeneous nucleation at interface between particles matrix. Here, we report results from an atomic-scale experimental investigation Al-Cu based as well Al-5T...

An alternative approach for producing a hard TiB2/TiC multilayer on M2 high-speed steel was introduced by combining cathodic arc physical vapor deposition (CA-PVD) and reduction thermal diffusion-based boriding (CRTD-Bor). In this regard, the CRTD-Bor process applied CA-PVD Ti-deposited effects of parameters (i.e., temperatures durations) growth were examined. During boriding, Ti coating substr...