Microstructure and residual stress analysis of Strenx 700 MC welded joint

• Autorzy: Trško Libor , Lago Ján , Jambor Michal , Nový František , Bokůvka Otakar , Florková Zuzana

Identyfikatory

DOI

10.30657/pea.2020.26.09

• Języki publikacji: EN

Abstrakty

EN

High strength low alloy (HSLA) steels are a new generation of plain carbon steels with significantly improved mechanical properties while maintaining good weldability with common commercial techniques. Residual stress and microstructural analysis of welded HSLA Strenx 700 MC was carried out in this research. Results have shown that the welding process causes significant grain coarsening in the heat affected zone. The microstructural changes are also accompanied with creation of tensile residual stress field in the weld metal and heat affected zone, reaching up-to depth of 4 mm. Tensile residual stresses are well known for acceleration of fatigue crack initiation and together with coarse grains can lead to significant decrease of the fatigue properties of the welded structure.

Słowa kluczowe

EN

residual stress; high strength steel; welding; microstructure; grain coarsening

PL

naprężenia szczątkowe; stal o wysokiej wytrzymałości; spawalnictwo; mikrostruktura

• Wydawca: Oficyna Wydawnicza Stowarzyszenia Menedżerów Jakości i Produkcji
• Czasopismo: Production Engineering Archives
• Rocznik: 2020
• Tom: Vol. 26, Iss. 2
• Strony: 41--44
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Trško Libor

• Research centre of the University of Žilina, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic

autor

Lago Ján

• Lago Nástrojáreň s. r. o., Veľké Rovné 1571, 013 62 Veľké Rovné, Slovak Republic

autor

Jambor Michal

• Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 513/22, 602 00 Brno, Czech Republic

autor

Nový František

• Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic

autor

Bokůvka Otakar

• Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic

autor

Florková Zuzana

• Research centre of the University of Žilina, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic

Bibliografia

• 1.Bakkaloğlu, A., 2002. Effect of processing parameters on the microstructure and properties of an Nb microalloyed steel, Mater. Lett., 56, 263-272, https://doi.org/10.1016/S0167-577X(02)00453-6.
• 2.Charleux, M., Poole, W.J., Militzer, M., Deschamps, A., 2001. Precipitation behavior and its effect on strengthening of an HSLA-Nb/Ti steel, Metall. Mater. Trans. A., 32, 1635-1647, https://doi.org/10.1007/s11661-001- 0142-6.
• 3.Cullity, B.D., 2002. Elements of X-ray diffraction, Prentice Hall, 2002, 664, ISBN-10-020161-0914.
• 4.Lago, J., Trško, L., Jambor, M., Nový, F., Bokůvka, O., Mičian, M., Pastorek, F., 2019. Fatigue Life Improvement of the High Strength Steel Welded Joints by Ultrasonic Impact Peening, Metals, 9.
• 5.Jesus Jorge, J., Cândido, V.S., Rios da Silva, A.C., Costa Garcia, Filho, F., Camposo, Pereira, A., Santos da Luz, F., Neves Monteiro, S. 2018. Mechanical properties and microstructure of SMAW welded and thermically treated HSLA-80 steel, J. of Mater. Res. Technol., 7, 598-605, https://doi.org/10.1016/j.jmrt.2018.08.007.
• 6.Noyan, I.C., Cohen, J.B., 1987. Residual Stress-measurement by diffraction and interpretation, New York: Springer - Verlag, 1987.
• 7.Park, D.B., Huh, M.Y., Shim, J.H., Suh, J.Y., Lee, K.H., Jung, W.S., 2013. Strengthening mechanism of hot rolled Ti and Nb microalloyed HSLA steels containing Mo and W with various cooling temperature, J. Mater. Sci. Eng. A., 560, 528 - 534, https://doi.org/10.1016/ j.msea.2012.09.098.
• 8.Shao, Y., Liu, C., Yan, Z., Li, H., Liu, Y. 2018. Formation mechanism and control methods of acicular ferrite in HSLA steels: A review, J. Mater. Sci. Technol. 34, 737-744, https://doi.org/10.1016/j.jmst.2017.11.020.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).