A New Complex Phase in a High-Temperature Alloy

Microstructure of Nickel‐Based Superalloys

“…M,,C, has also been observed in a cellular morphology in several Ni-based superalloys, Inconel X [18], Udimet 500 [37], and a modified R e d 41 [43] representing just a few. I n general, this morphology occurs when aging solution-treated material a t relatively low temperatures, i.e.…”

Density functional theory study of the magnetic moment of solute Mn in bcc Fe

“…The state-of-the art theoretical description of Mn in Fe has a large impact on our understanding of phenomena such as solute clustering 1 and vacancy-solute clustering 2 , which compromise the structural integrity of the steels during operation. The former occurs in the ferritic phase of duplex steels as a result of thermal ageing (573 -773 K for >1000 h) [3][4][5] and in low-alloy steels [6][7][8] resulting from longterm (> 1 year) elevated temperature (~550 K); the latter, occurs due to neutron irradiation damage, which is of interest to life extension of nuclear fission reactors and for fast neutron damage of steels to be used in future fusion reactors. It is therefore important for atomic scale processes such as binding, substitution and migration to be understood at a fundamental level, to be used in high order methods and analyses [9][10][11][12][13] to model these phenomena in industrial settings.…”

Hardening and microstructural evolution of A533b steels irradiated with Fe ions and electrons

“…It is known that Mn-, Ni-, and Si-rich phases form in a number of austenitic stainless steels and RPV steels during irradiation. In austenitic steels, a number of G-phases are known to exist that are enriched in face-centered cubic Ni and Si [33,34]. Such G phases and an Ni 3 Si phase have been shown to nucleate only at defect sinks for interstitials during irradiation.…”