Die-hard plastic deformation behavior in an ultrahigh-strength Fe–Ni–Al–C alloy. (May 2015)

• Record Type: Journal Article
• Authors: Furuta, T.; Kuramoto, S.; Ohsuna, T.; Oh-ishi, K.; Horibuchi, K.
• Is Part Of: Scripta materialia. Volume 101(2015)
• Page Start: 87
• Page End: 90
• Publication Date: 2015-05
• Subjects: Ultrahigh strength -- Uniform ductility -- Strain hardening -- Ideal strength -- Elastic anomaly; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.01.025
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : An important property of metallic materials is their ability to deform plastically. Ductility enables materials to be formed into various shapes and guarantees reliability under structural use. However, there is a trade-off relationship between ductility and strength. Here, we show a cold-worked Fe–24.6%Ni–5.8%Al–0.44%C alloy having yield strength of approximately 2 GPa, and a uniform elongation of over 20%. Activation of two or more deformation mechanisms is considered to be responsible for this "die-hard" plastic deformation with continuous, inhomogeneous strain hardening.