A study of lattice elasticity from low entropy metals to medium and high entropy alloys. (May 2015)

• Record Type: Journal Article
• Authors: Huang, E-Wen; Yu, Dunji; Yeh, Jien-Wei; Lee, Chi; An, Ke; Tu, Shan-Yi
• Is Part Of: Scripta materialia. Volume 101(2015)
• Page Start: 32
• Page End: 35
• Publication Date: 2015-05
• Subjects: Neutron diffraction -- Metal and alloys -- Elastic behavior -- Microstructure -- High entropy alloy; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.01.011
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : An equal-molar CoCrFeMnNi, face-centered-cubic high-entropy alloy system and a face-centered-cubic stainless steel described as a medium-entropy system, are measured by in situ neutron-diffraction experiments subjected to continuous tension at room and several elevated temperatures, respectively. With spallation neutron, the evolution of multiple diffraction peaks is collected simultaneously for lattice-elasticity study. Temperature variation of elastic stiffness of a single face-centered-cubic-phase Ni and a single face-centered-cubic-phase Fe are compared as low-entropy metals. The CoCrFeMnNi high-entropy alloy shows distinct lattice anisotropy.