TWIP – TRIP effect in single crystalline VFeCoCrNi multi-principle element alloy. (15th March 2021)

• Record Type: Journal Article
• Authors: Abuzaid, Wael; Egilmez, Mehmet; Chumlyakov, Yuri I.
• Is Part Of: Scripta materialia. Number 194(2021)
• Publication Date: 2021-03-15
• Subjects: Multi-principle element alloys -- TWIP -- TRIP -- FCC-BCC -- single crystals -- high entropy alloys; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2020.113637
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Various multi-principle element alloys exhibit superior mechanical properties across a wide range of temperatures including cryogenic temperatures. In most systems, the remarkable properties are attributed to deformation twinning (twinning induced plasticity). The recent VFeCoCrNi multi-principle element alloy displays a combined twinning induced plasticity effect, at room-temperature, and phase transformation at low deformation temperatures (transformation induced plasticity). This work considers single crystalline specimens of VFeCoCrNi loaded along the [111] direction. At room-temperature, slip dominates at low strains, below 22% plastic strain, and a delayed activation of twinning is observed. At 77 K, early activation of transformation, face-center cubic to body-center cubic having { 111 } F C C / / { 110 } B C C and 〈 110 〉 F C C / / 〈 111 〉 B C C parallel relations, was revealed. Graphical abstract: Image, graphical abstract