Segregation Phenomena at Thermally Grown Al 2 O 3 /Alloy Interfaces

摘要: Experimental results on S segregation at growing Al2O3/alloy interfaces are reviewed for binary FeAl, NiAl alloys, and ternary alloys with additions of Cr, Pt, or a reactive element, such as Zr, Hf, Y. The behavior is thermodynamic in nature, but the energy can change not only alloying elements also oxidation time temperature oxide growth process changes. Although capable eliminating interfacial segregation, they do stop to alloy surfaces. element interface further strengthens bonding. Cosegregation Cr occur, resulting higher levels interface. Pt usually suppresses this effect be easily overwhelmed by S-Cr cosegregation. Synergisms between how affect well relationship process, areas that demand investigation.