Effect of Thermomechanical Controlled Processing and Quenching & Tempering on the Structure and Properties of Bainite-Martensite Steels

In the present time, advanced high strength steel (AHSS) has secured a dominant place in the automobile sector due to its high strength and good toughness along with the reduced weight of car body which results in increased fuel efficiency, controlled emission of greenhouse gases and increased passe...

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Main Authors: G. Mandal, S.K. Ghosh, S. Chatterjee
Format: Article
Language:English
Published: Polish Academy of Sciences 2020-05-01
Series:Archives of Metallurgy and Materials
Subjects:
Online Access:https://journals.pan.pl/Content/116069/PDF/AMM-2020-2-46-Ghosh.pdf
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author G. Mandal
S.K. Ghosh
S. Chatterjee
author_facet G. Mandal
S.K. Ghosh
S. Chatterjee
author_sort G. Mandal
collection DOAJ
description In the present time, advanced high strength steel (AHSS) has secured a dominant place in the automobile sector due to its high strength and good toughness along with the reduced weight of car body which results in increased fuel efficiency, controlled emission of greenhouse gases and increased passengers’ safety. In the present study, four new advanced high strength steels (AHSS) have been developed using three different processing routes, i.e., thermomechanical controlled processing (TMCP), quenching treatment (QT), and quenching & tempering (Q&T) processes, respectively. The current steels have achieved a better combination of the high level of strength with reasonable ductility in case of TMCP as compared to the other processing conditions. The achievable ultrahigh strength is primarily attributed to mixed microstructure comprising lower bainite and lath martensite as well as grain refinement and precipitation hardening.
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spelling doaj.art-c9825e0bb131419990456ba0ed823b172022-12-22T01:40:22ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092020-05-01vol. 65No 2861868https://doi.org/10.24425/amm.2020.132832Effect of Thermomechanical Controlled Processing and Quenching & Tempering on the Structure and Properties of Bainite-Martensite SteelsG. MandalS.K. GhoshS. ChatterjeeIn the present time, advanced high strength steel (AHSS) has secured a dominant place in the automobile sector due to its high strength and good toughness along with the reduced weight of car body which results in increased fuel efficiency, controlled emission of greenhouse gases and increased passengers’ safety. In the present study, four new advanced high strength steels (AHSS) have been developed using three different processing routes, i.e., thermomechanical controlled processing (TMCP), quenching treatment (QT), and quenching & tempering (Q&T) processes, respectively. The current steels have achieved a better combination of the high level of strength with reasonable ductility in case of TMCP as compared to the other processing conditions. The achievable ultrahigh strength is primarily attributed to mixed microstructure comprising lower bainite and lath martensite as well as grain refinement and precipitation hardening.https://journals.pan.pl/Content/116069/PDF/AMM-2020-2-46-Ghosh.pdfsteelstmcpheat treatmentmicrostructuremechanical properties
spellingShingle G. Mandal
S.K. Ghosh
S. Chatterjee
Effect of Thermomechanical Controlled Processing and Quenching & Tempering on the Structure and Properties of Bainite-Martensite Steels
Archives of Metallurgy and Materials
steels
tmcp
heat treatment
microstructure
mechanical properties
title Effect of Thermomechanical Controlled Processing and Quenching & Tempering on the Structure and Properties of Bainite-Martensite Steels
title_full Effect of Thermomechanical Controlled Processing and Quenching & Tempering on the Structure and Properties of Bainite-Martensite Steels
title_fullStr Effect of Thermomechanical Controlled Processing and Quenching & Tempering on the Structure and Properties of Bainite-Martensite Steels
title_full_unstemmed Effect of Thermomechanical Controlled Processing and Quenching & Tempering on the Structure and Properties of Bainite-Martensite Steels
title_short Effect of Thermomechanical Controlled Processing and Quenching & Tempering on the Structure and Properties of Bainite-Martensite Steels
title_sort effect of thermomechanical controlled processing and quenching tempering on the structure and properties of bainite martensite steels
topic steels
tmcp
heat treatment
microstructure
mechanical properties
url https://journals.pan.pl/Content/116069/PDF/AMM-2020-2-46-Ghosh.pdf
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