NON-UNIFORMITY OF MICROSTRUCTURE AND MECHANICAL PROPERTIES IN HIGH STRENGTH LOW-CARBON STEEL HOT ROLLED COILS
https://doi.org/10.17073/0368-0797-2013-9-43-47
Abstract
The results of electromagnetic non-destructive online monitoring of austenite phase transformation under conditions of industrial hot strip mill are reported. It is shown that the non-uniformity of cooling of hot rolled low carbon high strength steel coils during conventional manufacturing process induces heterogeneous microstructure and mechanical properties both along and across the strip. The microstructural non-uniformity formed after hot rolling is then inherited downstream, which can be a hidden cause of thickness deviation defect that manifests itself cold rolling. Recommendations are given as to decrease and avoid the non-uniformity of microstructure in hot rolled strips to improve the quality of final product.
About the Authors
L. M. Kaputkina
Национальный исследовательский технологический университет «МИСиС»
Russian Federation
Russian Federation
A. V. Marmulev
Исследовательский Центр АрселорМиттал
Russian Federation
Russian Federation
I. V. Schetinin
Национальный исследовательский технологический университет «МИСиС»
Russian Federation
Russian Federation
G. Ehrman
Национальный исследовательский технологический университет «МИСиС»
Russian Federation
Russian Federation
E. I. Polyak
Исследовательский Центр АрселорМиттал
Russian Federation
Russian Federation
References
1. Bhattacharya D. // Metallurgical industry press. 1st edition. 2011. Vol. 10. P. 511.
2. Poliak E.I., Pottore N.S., Skolly R.M. et al. // La Metallurgia Italiana. 2009. February. P. 1 – 8.
3. Капуткина Л.М., Мармулев А.В., Арлазаров А.Е., Уин Д. // Проблемы черной металлургии и материаловедения. 2012. № 2. С. 86 – 94.
4. Капуткина Л.М., Мармулев А.В., Эрман Г., Тюрон Ж.М. // Проблемы черной металлургии и материаловедения. 2013. № 1. С. 101 – 107.
5. Капуткина Л.М., Мармулев А.В., Поляк Е.И., Эрман Г. // МиТОМ. 2012. № 12. С. 14 – 18.
6. Marmulev A.V., Herman G., Poliak E.I., Kaputkina L.M. // Factors affecting gauge uniformity of flat cold
7. rolled AHSS. Proceeding of materials science and technology. International conference. October 16-20. 2011. Columbus, Ohio, USA. P. 470 – 476.
8. Chashchin V.V., Kuklev A.V., Popov E.S., Slavov V.I. // Steel in translation. 2007. Vol. 37. No. 3. P. 309 – 312.
9. Chashchin V.V. // Steel in translation. 2010. Vol. 40. No. 2. P. 153 – 156.
Review
For citations:
Kaputkina L.M., Marmulev A.V., Schetinin I.V., Ehrman G., Polyak E.I. NON-UNIFORMITY OF MICROSTRUCTURE AND MECHANICAL PROPERTIES IN HIGH STRENGTH LOW-CARBON STEEL HOT ROLLED COILS. Izvestiya. Ferrous Metallurgy. 2013;56(9):43-47. (In Russ.) https://doi.org/10.17073/0368-0797-2013-9-43-47
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