Significant correlation between macroscopic and microscopic parameters for the description of localized plastic flow auto-waves in deforming alloys
2012 (English)In: Solid State Communications, ISSN 0038-1098, E-ISSN 1879-2766, Vol. 152, no 9, 784-787 p.Article in journal (Refereed) Published
Understanding of mechanical properties of materials and a possibility to predicting them from ab initio calculations have fundamental importance for solid state theory. In this work we establish a significant correlation between the product of the macroscopic parameters of localized plastic flow auto-waves in deforming alloys, their length and propagation rate and the product of the microscopic (lattice) parameters of these materials, the spacing between close-packed planes of the lattice and the rate of transverse elastic waves. Thus, these products can be regard as invariants of plastic and elastic deformation processes, respectively. Moreover, the established regularity suggests that the elastic and the plastic processes simultaneously involved in the deformation are closely related. Our work also demonstrates that ab initio simulations can be used for the prediction of parameters of localized plastic flow auto-waves in deforming alloys.
Place, publisher, year, edition, pages
Elsevier , 2012. Vol. 152, no 9, 784-787 p.
Localized plastic flow auto-waves, First-principles simulations, Metallic alloys
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-77321DOI: 10.1016/j.ssc.2012.01.044ISI: 000302978800009OAI: oai:DiVA.org:liu-77321DiVA: diva2:526359
Funding Agencies|Ministry of Education and Science of the Russian Federation|14.740.11.0037|Russian Foundation for Basic Researches|10-02-00-194 a|Goran Gustafsson Foundation for Research in Natural Sciences and Medicine||Swedish Foundation for Strategic Research (SSF)||Swedish Research Council (VR)||2012-05-112012-05-112012-06-07