Journal info
Select Journal
Journals
Bratislava Medical Journal Endocrine Regulations General Physiology and Biophysics Neoplasma Acta Virologica Studia Psychologica Cardiology Letters Psychológia a patopsych. dieťaťa Kovove Materialy-Metallic Materials 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 Slovenská hudbaWebshop Cart
Your Cart is currently empty.
Info: Your browser does not accept cookies. To put products into your cart and purchase them you need to enable cookies.
Metallic Materials Vol. 56 (2018), no. 5, pp. 297-303 |
||
Title: The effects of primary thermo-mechanical processing routes and intercritical annealing on the mechanical properties of st37 low carbon steel | ||
Author: M. ALIBEYKI, H. MIRZADEH, M. NAJAFI | ||
Abstract: The effect of thermo-mechanical processing routes on the microstructure and mechanical properties of st37 low carbon steel was studied. Several dual phase (DP) ferritic-martensitic steels were produced by intercritical annealing of the martensitic, cold-rolled martensitic, and bimodal-sized ferritic microstructures. The latter microstructure was produced by subcritical tempering of cold-rolled DP steel to develop an aggregate of ultrafine and large ferrite grains. The DP steel obtained by intercritical annealing of cold-rolled martensite was shown to exhibit better strength-ductility balance compared with that obtained by intercritical annealing of the as-quenched martensite due to much finer microstructure and enhancement of work-hardening behavior in the former. The bimodal-sized ferritic structure showed high yield stress, yield-point elongation, and less pronounced work-hardening regime. The DP steel obtained by intercritical annealing of bimodal-sized ferritic structure exhibited inferior strength-ductility tradeoff compared with that obtained by intercritical annealing of cold-rolled martensite due to the coarser microstructure in the former. Conclusively, it is possible to enhance the mechanical properties of st37 low carbon steel by simple processing routes. |
||
Keywords: dual phase steels, microstructure, mechanical properties, strain hardening rate | ||
Published online: 24-Oct-2018 | ||
Year: 2018, Volume: 56, Issue: 5 | Page From: 297, Page To: 303 | |
doi:10.4149/km_2018_5_297 |
||
|
download file |
|