Effect of Ce content on the microstructure and mechanical properties of squeeze-cast Al–5Mg-2.2Si-0.6Mn alloys

Mechanical properties and impact energy release characteristics of Al0.5NbZrTi1.5Ta0.8Ce0.85 high-entropy alloy

“…This phenomenon is a little different from existing research [14]. It is assumed that the addition of cerium could promote the formation of element segregation [15,16]. TEM images (figure 3) show the presence of three different regions (re-gion I, II and III) with different structures.…”

Effects of Cerium Doping on the Mechanical Properties and Energy-Releasing Behavior of High-Entropy Alloys

“…According to the research by Fu and Jin [ 16 , 17 ], the addition of cerium could encourage the formation of element segregation. In addition, for systems before and after mixing, the change in Gibbs free energy plays an important part [ 18 ].…”

“…The Ce-rich areas were mainly present in the form of dots (approximately 50 nm), with few large Ce-rich areas. Based on the SEM image ( Figure 3 ), it is assumed [ 17 ] that the dotted Ce-rich regions were mainly present in intra-dendrite region, while the large Ce-rich regions were present in inter-dendrite region. This result was observed because cerium has a low solid solubility in the matrix and tends to form another phase, corresponding to previous studies [ 19 , 20 ].…”

Mechanical Properties of Refined A356 Alloy in Response to Continuous Rheological Extruded Al-5Ti-0.6C-1.0Ce Alloy Prepared at Different Temperatures

“…In the solidification process, the Ce element can enrich the solid-liquid interface front and inhibit the growth of the grain. Simultaneously, the Ce element is enriched in the interstices of the dendrites, causing subcooling of the composition and further broken dendrite, which refines the grains [29][30][31][32]. Moreover, the Ce element is the surface active substance that improves the wettability of the aluminum melt to the second phase [33].…”