New Cr-Ni-Base Alloy for High-Temperature Applications Designed on the Basis of First Principles Calculations
Joint Authors
Razumovskiy, V. I.
Scheiber, D.
Razumovskii, I. M.
Butrim, V. N.
Trushnikova, A. S.
Varlamova, S. B.
Beresnev, A. G.
Source
Advances in Condensed Matter Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-09
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
We use ab initio calculations to analyze the influence of 4d and 5d transition metal alloying elements on cohesive properties of the bulk and a representative grain boundary in Cr within the framework of the Rice–Thomson–Wang approach.
The results obtained for Cr are combined with the analogous results for Ni to select Ta and Nb as promising alloying additions to dual-phase (α/γ) Cr-Ni-base high-temperature alloys.
Ta and Nb are added to the alloying system of an existing alloy I (Cr-Ni-W-V-Ti) in an attempt to design a chemical composition of a new alloy II (Cr-Ni-W-V-Ti) + (Ta-Nb).
Investigation of the microstructure of the Ta-bearing Cr-Ni-alloy reveals a Ta enrichment of large γ-areas near GBs in α-matrix that we consider as potency to increase the cohesive strength of GBs and the cohesive energy of the bulk in γ-phase.
Mechanical testing of alloys I and II demonstrates that the alloy II has improved tensile strength and creep resistance at high temperatures.
American Psychological Association (APA)
Razumovskiy, V. I.& Scheiber, D.& Razumovskii, I. M.& Butrim, V. N.& Trushnikova, A. S.& Varlamova, S. B.…[et al.]. 2018. New Cr-Ni-Base Alloy for High-Temperature Applications Designed on the Basis of First Principles Calculations. Advances in Condensed Matter Physics،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1117360
Modern Language Association (MLA)
Razumovskiy, V. I.…[et al.]. New Cr-Ni-Base Alloy for High-Temperature Applications Designed on the Basis of First Principles Calculations. Advances in Condensed Matter Physics No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1117360
American Medical Association (AMA)
Razumovskiy, V. I.& Scheiber, D.& Razumovskii, I. M.& Butrim, V. N.& Trushnikova, A. S.& Varlamova, S. B.…[et al.]. New Cr-Ni-Base Alloy for High-Temperature Applications Designed on the Basis of First Principles Calculations. Advances in Condensed Matter Physics. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1117360
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117360