Large Wiedemann effect in (Co70Fe30)99.8(NbC)0.2 wires with strong 〈100〉 circumferential texture. (December 2017)

• Record Type: Journal Article
• Authors: Zhao, Yalong; Li, Jiheng; Bao, Xiaoqian; Mu, Xing; Gao, Xuexu
• Is Part Of: Scripta materialia. Number 141(2017)
• Page Start: 80
• Page End: 84
• Publication Date: 2017-12
• Subjects: Magnetostriction -- Wiedemann effect -- Texture -- Nanoparticles -- (Co70Fe30)99.8(NbC)0.2 alloy; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2017.07.035
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: In this work, 0.5 mm diameter magnetostrictive (Co70 Fe30 )99.8 (NbC)0.2 wires were prepared using forging and drawing processes. A Wiedemann twist up to 1348″/cm has been achieved in the annealed wires and to our knowledge is the largest value of Wiedemann effect in magnetoelastic materials. Microstructure analyses of the annealed wires indicate that large Wiedemann twist was attributed to the 〈100〉 circumferential texture and the fcc nanoparticles embedded in bcc matrix. The results indicate that the favorable circumferential texture and heterogeneous structure can be used to guide exploration of materials with large Wiedemann effect. Graphical abstract: