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Influence of stresses on structure and properties of Ti and Zr-based alloys from first-principles simulations
Institute Strength Phys and Mat Science SB RAS, Russia; National Research Tomsk State University, Russia; Tomsk State University of Architecture and Bldg, Russia.
National Research Tomsk State University, Russia.
Institute Strength Phys and Mat Science SB RAS, Russia.
Institute Strength Phys and Mat Science SB RAS, Russia.
Vise andre og tillknytning
2015 (engelsk)Inngår i: INTERNATIONAL SCIENTIFIC CONFERENCE OF YOUNG SCIENTISTS: ADVANCED MATERIALS IN CONSTRUCTION AND ENGINEERING, IOP Publishing , 2015, Vol. 71, nr 012078Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Computer simulations in the framework of the Density Functional Theory have become an established tool for computer simulations of materials properties. In most cases, however, information is obtained at ambient conditions, preventing design of materials for applications at extreme conditions. In this work we employ ab initio calculations to investigate the influence of stresses on structure and stability of Ti-Mo and Zr-Nb alloys, an important class of construction materials. Calculations reproduce known phase stability trends in these systems, and we resolve the controversy regarding the stability of body-centered cubic solid solution in Mo-rich Ti-Mo alloys against the isostructural decomposition. Calculated results are explained in terms of the electronic structure effects, as well as in terms of physically transparent thermodynamic arguments that relate phase stability to deviations of concentration dependence of atomic volume from the linear behavior.

sted, utgiver, år, opplag, sider
IOP Publishing , 2015. Vol. 71, nr 012078
Serie
IOP Conference Series-Materials Science and Engineering, ISSN 1757-8981
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-117819DOI: 10.1088/1757-899X/71/1/012078ISI: 000352606000078OAI: oai:DiVA.org:liu-117819DiVA, id: diva2:811245
Konferanse
International Scientific Conference of Young Scientists - Advanced Materials in Construction and Engineering (TSUAB)
Tilgjengelig fra: 2015-05-11 Laget: 2015-05-08 Sist oppdatert: 2015-05-13

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