منابع مشابه
Irradiation-induced formation of nanocrystallites with C15 Laves phase structure in bcc iron.
A three-dimensional periodic structure is proposed for self-interstitial clusters in body-centered-cubic metals, as opposed to the conventional two-dimensional loop morphology. The underlying crystal structure corresponds to the C15 Laves phase. Using density functional theory and interatomic potential calculations, we demonstrate that in α-iron these C15 aggregates are highly stable and immobi...
متن کاملFactors affecting the room-temperature mechanical properties of TiCr2-base Laves phase alloys
Various effects on the room-temperature mechanical properties of TiCr2-base alloys have been assessed in efforts to improve the toughness of Laves phase intermetallics (AB2). Systematic studies were performed on: (i) single-phase stoichiometric and nonstoichiometric TiCr2, (ii) TiCr2-base ternary Laves phases, and (iii) two-phase binary alloys containing TiCr2. In order to make quantitative com...
متن کاملASSESSMENT OF THE COMPOSITIONAL INFLUENCES ON THE TOUGHNESS OF TiCr,-BAS& LAVES PHASE ALLOYS
Systematic studies of alloys based on TiCr, have been performed in order to impro Ttoughness of Laves phase intermetallics. The extent to which alloy compositions and annealing treatments influence the toughness was quantified by Vickers indentation. The single-phase Laves behavior was first established by studying stoichiometric and nonstoichiometric TiCr,. Next, alloying effects were investig...
متن کاملThe New Laves Phase Na2Ba
After preliminary investigations o f the B a -N a N system, resulting in the discovery of the first sub-nitride NaBa3N [1], we decided to examine more closely the intermetallic phases formed by the two metals, leading to the discovery of the new Laves phase N a2Ba. The literature contains a variety o f conflicting reports concerning N a -B a intermetallic phases. The standard references for bin...
متن کاملThe effect of alloying on the properties of (Nb,Ti)Cr2 C15 Laves phases
The effect of composition on the ternary (NbCr2–TiCr2) C15 phase properties has been investigated, focusing upon the defect structure, elastic properties, and mechanical behavior. The C15 phase field is continuous between NbCr2–TiCr2, with a maximum phase field width of at least 7 at.% solubility. The defect mechanism is governed by anti-site constitutional defects for all alloys. Mechanically,...
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ژورنال
عنوان ژورنال: MRS Proceedings
سال: 1994
ISSN: 0272-9172,1946-4274
DOI: 10.1557/proc-364-1197