Acceleration of nanobainite transformation by multi-step ausforming process

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 2015 English Publisher:Elsevier BVJournal:Scripta Materialia, volume 107, pages 71-74 (issn: 1359-6462,

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Authors: Jianguo He; Aimin Zhao; Chao Zhi; Hongliang Fan;

doi: 10.1016/j.scriptamat.2015.05.023

Acceleration of nanobainite transformation by multi-step ausforming process

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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.

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Beijing University of Technology
China (People's Republic of)

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