Welding Thermal Cycle Impact on the Microstructure and Mechanical Properties of Thermo–Mechanical Control Process Steels. Issue 6 (7th February 2021)

• Record Type: Journal Article
• Authors: Zavdoveev, Anatoliy; Poznyakov, Valeriy; Baudin, Thierry; Heaton, Mark; Kim, Hyoung Seop; Acquier, Philippe; Skory, Mykola; Rogante, Massimo; Denisenko, Anatoliy
• Is Part Of: Steel research international. Volume 92:Issue 6(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-02-07
• Subjects: mechanical properties -- microstructure -- thermo–mechanical control processes -- welding thermal cycles; Steel -- Periodicals; Steel -- Metallurgy -- Periodicals; 669.142
• DOI: 10.1002/srin.202000645
• Languages: English
• ISSNs: 1611-3683

Abstract

Abstract : Steels obtained by the thermo–mechanical control process (TMCP) possess a higher level of strength than conventional normalized steels due to the fine‐grained microstructures generated during TMCP. Such enhancement opens ways to decrease metal construction weight. At the same time, TMCP steels have less thermal stability, in connection with a lot of factors affecting and governing grain growth during the heating of TMCP steels. Herein, the effects of the welding thermal cycle (WTC) on the structure and properties of TMCP steels of ferritic–perlite (S460M) and bainitic (alform 620M) types are systematically investigated. Abstract : Steels obtained by the thermo–mechanical control process possess a high level of strength due to the fine‐grained microstructures generated. However, these steels have less thermal stability, in connection with a lot of factors affecting and governing grain growth during heating. The effects of the welding thermal cycle on the structure and properties are systematically investigated.