Phase and structural transformations in ternary Ni3Al-based alloys / Stepanova NN,Belash VP,Lepikhin SV,Savin OV,Elokhina LV,Tyagunov GV,Akshentsev YN // PHYSICS OF METALS AND METALLOGRAPHY. - 2004. - V. 97, l. 4. - P. 415-421.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

Generalization of the results of metallographic, electron-microscopic, and X-ray diffraction studies in combination with the data of differential thermal analysis (DTA) enabled us to find general regularities in the sequence of the phase and structural transformations resulting in the formation of the single-phase gamma state in the course of solidification and subsequent cooling of ternary alloys based on the Ni3Al intermetallic compound, which depend on the substitution type intrinsic to a certain alloying element in the range of homogeneity of the gamma phase. A correlation was found between the substitution type preferable for a certain alloying transition element and the degree of localization of its valence d electrons, which can be characterized by the width of the d band (W-d) on the energy scale. The atoms of transition elements with a pronounced localization of d electrons substitute for nickel upon alloying. The higher the delocalization of the d electrons, the higher the ability of transition element to substitute for aluminum.

Author keywords:

ELECTRONIC-STRUCTURE; NI3AL; AL; ELEMENTS; KINETICS; NICKEL; MAPS

DOI:

нет данных

Web of Science ID:

ISI:000221141300012

Соавторы в МНС:

—

Другие поля

Поле	Значение
Month	APR
Publisher	INTERPERIODICA
Address	PO BOX 1831, BIRMINGHAM, AL 35201-1831 USA
Language	English
Keywords-Plus	ELECTRONIC-STRUCTURE; NI3AL; AL; ELEMENTS; KINETICS; NICKEL; MAPS
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Lepikhin, Sergey/D-6061-2016 Akshentsev, Yuriy/K-6623-2013 Stepanova, Natalia/J-9323-2013
ORCID-Numbers	Lepikhin, Sergey/0000-0002-0240-2164 Akshentsev, Yuriy/0000-0002-9517-1050 Stepanova, Natalia/0000-0003-1653-0594
Number-of-Cited-References	22
Usage-Count-Since-2013	4
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	816WZ