Acceleration of nanobainite transformation by multi-step ausforming process. (October 2015)

• Record Type: Journal Article
• Authors: He, Jianguo; Zhao, Aimin; Zhi, Chao; Fan, Hongliang
• Is Part Of: Scripta materialia. Volume 107(2015)
• Page Start: 71
• Page End: 74
• Publication Date: 2015-10
• Subjects: Bainitic steels -- Nanostructure -- Microstructure -- Mechanical properties -- Multi-step ausforming; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.05.023
• Languages: English
• ISSNs: 1359-6462

Abstract

Graphical abstract: Abstract : The effect of multi-step ausforming with small strain per pass (<10%) on the overall transformation kinetics, microstructures and tensile properties of a high carbon, silicon rich nanobainite steel was investigated. Nanobainite steel with bainite ferrite lath thickness of ∼50 nm, ultimate tensile strength of 2154 MPa and total elongation of 14% has been produced by being isothermally treated at 300 °C within 2 h after multi-step ausformed, in which, the multi-step ausforming process was modified with recovery treatment.