Formación y análisis termodinámico de inclusiones en metales de soldadura de acero que contienen Ti con diferentes contenidos de Al

BingXin  Wang; XiangHua  Liu; GuoDong  Wang

doi:10.3989/revmetalm.183

Authors

BingXin Wang College of Mechanical Engineering, Liaoning Shihua University https://orcid.org/0000-0002-3506-507X
XiangHua Liu State Key Laboratory of Rolling & Automation, Northeastern University https://orcid.org/0000-0003-2870-175X
GuoDong Wang State Key Laboratory of Rolling & Automation, Northeastern University https://orcid.org/0000-0002-9458-4638

DOI:

https://doi.org/10.3989/revmetalm.183

Keywords:

Aluminium content, Electron probe micro-analyzer, Oxide inclusion, Phase diagram, Thermodynamic calculation, Weld metal

Abstract

The Ti-containing steel weld metals with Al contents of 0.01-0.085% were prepared. The effects of Al contents in weld metals on the inclusions evolution were in detail investigated by means of thermodynamic calculations coupled with electron probe micro-analyses. The results show that the inclusions in the 0.01% Al weld metal are mainly composed of ilmenite with more amounts of (Mn-Si-Al)-oxide and titanial-spinel. When Al content is increased up to 0.035%, a more amount of corundum and a small amount of pseudobrookite are formed. In 0.085% Al weld metal, the (Mn-Si-Al)-oxide phase disappears completely, and the inclusions contain a substantial amount of corundum, in addition to a minimal amount of pseudobrookite. Ti₃O₅, MnTi₂O₄ and MnTiO₃ are the primary constituents of pseudobrookite, titanial_spinel and ilmenite solid solutions, respectively. Titanial_spinel and ilmenite have higher amounts of Mn, but lower Ti levels compared with pseudobrookite.

Downloads

Download data is not yet available.

References

Hsieh, K.C., Babu, S.S., Vitek, J.M., David, S.A. (1996). Calculation of inclusion formation in low-alloy-steel welds. Mater. Sci. Eng. A 215 (1-2), 84-91. https://doi.org/10.1016/0921-5093(96)10370-1

Kang, Y.B., Lee, H.G. (2010). Thermodynamic analysis of Mn-depleted zone near Ti oxide inclusions for intragranular nucleation of ferrite in steel. ISIJ Int. 50 (4), 501-508. https://doi.org/10.2355/isijinternational.50.501

Kang, Y.J., Jang, J.H., Park, J.H., Lee, C.H. (2014). Influence of Ti on non-metallic inclusion formation and acicular ferrite nucleation in high-strength low-alloy steel weld metals. Met. Mater. Int. 20 (1), 119-127. https://doi.org/10.1007/s12540-014-1013-1

Kang, Y.J., Jeong, S.H., Kang, J.H., Lee, C.H. (2016). Factors affecting the inclusion potency for acicular ferrite nucleation in high-strength steel welds. Metall. Mater. Trans. A 47, 2842-2854. https://doi.org/10.1007/s11661-016-3456-0

Li, J.Y., Cheng, G.G., Ruan, Q., Pan, J.X., Chen, X.R. (2018). Formation and evolution of oxide inclusions in titanium-stabilized 18Cr stainless steel. ISIJ Int. 58 (12), 2280-2287. https://doi.org/10.2355/isijinternational.ISIJINT-2018-332

Lin, C.K., Pan, Y.C., Frank Su, Y.H., Lin, G.R., Hwang, W.S., Kuo, J.C. (2018). Effects of Mg-Al-O-Mn-S inclusion on the nucleation of acicular ferrite in magnesium-containing low-carbon steel. Mater. Charact. 141, 318-327. https://doi.org/10.1016/j.matchar.2018.05.005

Mitsutaka, H., Kimihisa, I. (2010). Thermodynamic data for steelmaking. Tohoku University Press, Sendai, Japan.

Nako, H., Hatano, H., Okazaki, Y., Yamashita, K., Otsu, M. (2014). Crystal orientation relationships between acicular ferrite, oxide, and the austenite matrix. ISIJ Int. 54 (7), 1690-1696. https://doi.org/10.2355/isijinternational.54.1690

Seo, K.Y., Kim, Y.M., Kim, H.J., Lee, C.H. (2015). Characterization of inclusions formed in Ti-containing steel weld metals. ISIJ Int. 55 (8), 1730-1738. https://doi.org/10.2355/isijinternational.ISIJINT-2014-800

Shim, J.H., Cho, Y.W., Chung, S.H., Shim, J.D., Lee, D.N. (1999). Nucleation of intragranular ferrite at Ti2O3 particle in low carbon steel. Acta Mater. 47 (9), 2751-2760. https://doi.org/10.1016/S1359-6454(99)00114-7

Shim, J.H., Byun, J.S., Cho, Y.W., Oh, Y.J., Shim, J.D., Lee, D.N. (2001). Mn absorption characteristics of Ti2O3 inclusions in low carbon steels. Scripta Mater. 44 (1), 49-54. https://doi.org/10.1016/S1359-6462(00)00560-1

Takada, A., Komizo, Y.I., Terasaki, H., Yokota, T., Oi, K., Yasuda, K. (2015). Crystallographic analysis for acicular ferrite formation in low carbon steel weld metals. Welding Int. 29 (4), 254-261. https://doi.org/10.1080/09507116.2014.921042

Wang, B.X., Liu, X.H., Wang, G.D. (2018). Inclusion characteristics and acicular ferrite nucleation in Ti-containing weld metals of X80 pipeline steel. Metall. Mater. Trans. A 49 (6), 2124-2138. https://doi.org/10.1007/s11661-018-4570-y

Yamada, T., Terasaki, H., Komizo, Y.I. (2009). Relation between inclusion surface and acicular ferrite in low carbon low alloy steel weld. ISIJ Int. 49 (7), 1059-1062. https://doi.org/10.2355/isijinternational.49.1059

Zhang, T.S., Liu, C.J., Jiang, M.F. (2016). Effect of Mg on behavior and particle size of inclusions in Al-Ti deoxidized molten steels. Metall. Mater. Trans. B 47, 2253-2262. https://doi.org/10.1007/s11663-016-0706-x

Zhang, C.J., Gao, L.N., Zhu, L.G. (2018a). Effect of inclusion size and type on the nucleation of acicular ferrite in high strength ship plate steel. ISIJ Int. 58 (5), 965-969. https://doi.org/10.2355/isijinternational.ISIJINT-2017-696

Zhang, Q.S., Min, Y., Xu, H.S., Liu, C.J. (2018b). Formation and evolution of inclusions in Si-killed resulfurized free-cutting steel. ISIJ Int. 58 (7), 1250-1256. https://doi.org/10.2355/isijinternational.ISIJINT-2018-105

Zou, X.D., Sun, J.C., Zhao, D.P., Matsuura, H., Wang, C. (2018). Effects of Zr addition on evolution behavior of inclusions in EH36 shipbuilding steel: from casting to welding. J. Iron Steel Res. Int. 25 (2), 164-172. https://doi.org/10.1007/s42243-018-0022-6