Effects of solute size on solid-solution hardening in vanadium alloys: A first-principles calculation. (15th April 2015)

• Record Type: Journal Article
• Authors: Zhang, Xingming; Tang, Jianfeng; Deng, Lei; Deng, Huiqiu; Xiao, Shifang; Hu, Wangyu
• Is Part Of: Scripta materialia. Volume 100(2015)
• Page Start: 106
• Page End: 109
• Publication Date: 2015-04-15
• Subjects: Vanadium alloys -- Solute size -- Solubility -- Stacking fault energy -- First-principles calculation; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.01.006
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : We performed first-principles calculations to quantify the effect of 26 transition metals on the mechanical properties of vanadium (V) alloys. The generalized stacking-fault (GSF) energies of the solutes were evaluated in three slip systems. Solutes with similar atomic radii to that of V present high GSF energies, which increase the energy barrier for double-kink nucleation and result in excellent strengthening effect. This size effect indicates that noble metals can significantly improve the mechanical strength of V alloys.