Metastable phases of electron type in titanium alloys with 3d-metals
Metastable phases of electron type in titanium alloys with 3d-metals
复制标题
三维金属钛合金中电子型亚稳相
DOI：
10.1007/s11041-006-0111-1
复制
发表时间：
2006
影响因子：
0.6
通讯作者：
I. V. Lyasotskii
中科院分区：
文献类型：
--
作者：
G. Nosova;N. B. D’yakonova;I. V. Lyasotskii
考虑了含三维金属的钛合金中合金元素浓度变化引起的亚稳态的形成条件和结构特征。研究了从固溶体硬化产生的状态和从熔体硬化产生的状态。在所有这类合金中，合金元素浓度的增长伴随着亚稳ω相和不相称ω相的形成;在Ti-Fe和Ti-Mn系合金中，形成的相还包括二十面体准晶及其近似物。讨论了各种因素对亚稳相形成的影响。无公度ω相被认为是由电子相互作用稳定的特定纳米晶体结构的一个例子。
Conditions of formation and structural characteristics of metastable states forming due to changes in the concentration of alloying elements in titanium alloys with 3d-metals are considered. The states arising due to hardening from the range of solid solution and the states arising due to hardening from melt are studied. Growth in the concentration of alloying elements in all alloys of the type is accompanied by formation of a metastable ω-phase and an incommensurate ω-phase; in alloys of the Ti-Fe and Ti-Mn systems the formed phases also include icosahedral quasi-crystals and their approximants. Effects of various factors on the formation of metastable phases are discussed. An incommensurate ω-phase is considered as an example of specific nanocrystalline structure stabilized by electron interactions.