Recovery of tensile properties of twinning-induced plasticity steel via electropulsing induced void healing. (1st April 2018)

• Record Type: Journal Article
• Authors: Yang, C.L.; Yang, H.J.; Zhang, Z.J.; Zhang, Z.F.
• Is Part Of: Scripta materialia. Number 147(2018)
• Page Start: 88
• Page End: 92
• Publication Date: 2018-04-01
• Subjects: TWIP steel -- Electropulsing -- Void healing -- Recovery -- Strength and plasticity; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.01.008
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: The effects of electropulsing treatment (EPT) and annealing on the tensile behaviors of twinning-induced plasticity (TWIP) steel after interrupted tension are compared. It is found that EPT effectively restores the tensile property of specimens with macro voids completely, while annealing could not. The selective heating and thermal compressive stress induced by EPT around voids make them readily to be healed while keeping the matrix unchanged. The healing effect of voids improves the strain-hardening capability of TWIP steels and leads to the recovery of strength and elongation of the EPT specimen, relative to those annealed counterparts. Graphical abstract: Image 1