The present work aims to boost our understanding of factors governing the grain-refining efficiency inoculation treatments by comparing efficiencies two inoculators: Ti nanoparticles and LaB6 nanoparticles, in a 2024 Al alloy during additive manufacturing (AM). Experimental results obtained scanning electron microscopy show that nanoparticle possessed almost no refining effect on alloy, with ad...

Al-5Ti-B and Al-5Ti-B-Gd master alloy refiners were fabricated by fluorine salt casting method. The microstructure phase constitution of the alloys investigated scanning electron microscopy (SEM), transmission (TEM) X-ray diffraction (XRD). results show that Al-Ti-B refiner consists Al3Ti TiB2 phase. After Gd is introduced into intermediate alloy, Ti2Al20Gd appears in size significantly reduced...

Titanium alloy has extensive applications in numerous fields, such as aerospace, shipbuilding, petrochemical, and bio-medical. However, under the condition of high temperature (above 700 °C), it is difficult to meet requirements performance turbine blades, piston rings, valves, etc. In this paper, powder composed Ni60A, TiN, Al, Si accordance with proportion 1:3:4:2 (mass ratio), composite coat...