Analysis and prevention of sticking occurring during hot rolling of ferritic stainless steel

Ha, Dae Jin; Sung, Hyokyung; Lee, Sunghak; Lee, Jong Seog; Lee, Yong Deuk

doi:10.1016/j.msea.2008.11.062

Cited by 28 publications

(18 citation statements)

References 14 publications

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“…The sticking phenomenon of the ferritic stainless steel is significantly affected by the distribution and volume fraction of oxides present on the steel surface [8]. Ha et al [9] investigated the temperature effect on the sticking behaviour.…”

Section: Resultsmentioning

confidence: 99%

“…The sticking of bare metal to roll surfaces was strongly dependent on the high temperature tensile strength and the oxidation resistance of the stainless steel [1]. It is more difficult for oxide scale to be generated on the surface of stainless steels than that on the surface of carbon steels during high rolling temperature [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…It is more difficult for oxide scale to be generated on the surface of stainless steels than that on the surface of carbon steels during high rolling temperature [2,3]. Sticking refers to a phenomenon occurring in hot rolling process in which fragments of a rolled material are detached and get stuck onto a work roll surface, deteriorating not only the surface quality of the product, but also the rolls, which will result in shorter intervals of roll replacement or grinding [4,5]. A sticking occurrence was more sensitive for the steels containing more chromium [6].…”

Section: Introductionmentioning

confidence: 99%

“…This is caused by abrasion during the contact of the roll and the strip. Jin et al [6,7] and Ha et al [1,8,9] have intensively investigated the sticking mechanism. For the rolled materials, the tensile strength and the oxidation behaviour of the materials affect the sticking in hot rolling.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of oxide scale on ferritic stainless steel B445J1M and its tribological effect in hot rolling

Cheng

Jiang

Zhao

et al. 2015

Wear

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Severe sticking occurs in the hot rolling of ferritic stainless steel B445J1M. The characteristics of the oxide scale on the steel in hot rolling are associated with this phenomenon. The tensile failure of the oxide scale formed on the steel B445J1M was investigated by using a Gleeble 3500 thermo-mechanical simulator over temperature range from 1000 to 1150°C in humid air. Two passes hot rolling were carried out on a 2-high Hille 100 experimental rolling mill. The results show that the temperature is a significant factor for the formed thickness of the oxide scale and its failure in tensile stress. On the specimen before hot rolling, irregular spinels are extruded from the surface of a thin oxide scale with Cr2O3 as its main component, which are hard and brittle at lower rolling temperature. Disciplines Engineering | Science and Technology Studies Publication DetailsCheng, X., Jiang, Z., Zhao, J., Wei, D., Hao, L., Peng, J., Luo, M., Ma, L., Luo, S. & Jiang, L. (2015 AbstractSevere sticking occurs in the hot rolling of ferritic stainless steel B445J1M. The characteristics of the oxide scale on the steel in hot rolling are associated with this phenomenon. The tensile failure of the oxide scale formed on the steel B445J1M was investigated by using a Gleeble 3500 thermo-mechanical simulator over temperature range from 1000 to 1150 °C in humid air. Two passes hot rolling were carried out on a 2-high Hille 100 experimental rolling mill. The results show that the temperature is a significant factor for the formed thickness of the oxide scale and its failure in tensile stress. On the specimen before hot rolling, irregular spinels are extruded from the surface of a thin oxide scale with Cr 2 O 3 as its main component, which are hard and brittle at lower rolling temperature.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of oxide scale on ferritic stainless steel B445J1M and its tribological effect in hot rolling

Cheng

Jiang

Zhao

et al. 2015

Wear

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“…The oxide scale plays an important role in the sticking mechanisms during the hot rolling of ferritic stainless steels [20][21][22][23][24] but the tribological behaviour of the oxide scale formed on the stainless steel 445 has not been investigated. Pin-on-disc experiments were conducted at elevated temperature.…”

Section: Introductionmentioning

confidence: 99%

Influence of Cr-Rich Oxide Scale on Sliding Wear Mechanism of Ferritic Stainless Steel at High Temperature

et al. 2016

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L. (2016). Influence of Cr-Rich oxide scale on sliding wear mechanism of ferritic stainless steel at high temperature. Tribology Letters, 63 (2), 1-13.Influence of Cr-Rich oxide scale on sliding wear mechanism of ferritic stainless steel at high temperature AbstractThe tribological tests of a ferritic stainless steel (FSS) 445 in contact with high-speed steel (HSS) were performed on a high-temperature pin-on-disc tribometer. Wear exhibited significant difference when the FSS 445 was oxidised with a Cr-rich oxide scale on the surface. The HSS pin displayed adhesive wear when there was no oxide scale on the stainless steel disc, and in the early stages, the coefficient of friction fluctuated significantly, but the level of wear changed as Cr2O3 particles formed. The wear was then reduced, and the coefficient of friction remained stable. The Cr-rich oxide scale which formed on the stainless steel was able to stabilise the coefficient of friction, to reduce the wear rate and to help form a glazed layer on the HSS surface. The abrasive wear of the HSS pin took place at 850 °C, indicating that the hardness of the Cr-rich oxide scale increased as the temperature decreased. AbstractThe tribological tests of a ferritic stainless steel (FSS) 445 in contact with high speed steel (HSS)were performed on a high temperature pin-on-disc tribometer. Wear exhibited significant difference when the FSS 445 was oxidised with a Cr-rich oxide scale on the surface. The HSS pin displayed adhesive wear when there was no oxide scale on the stainless steel disc and in the early stages, the coefficient of friction fluctuated significantly but the level of wear changed as Cr 2 O 3 particles formed. The wear was then reduced and the coefficient of friction remained stable. The Cr-rich oxide scale which formed on the stainless steel was able to stabilize the coefficient of friction, to reduce the wear rate and to help form a glazed layer on the HSS surface. The abrasive wear of the HSS pin took place at 850 °C, indicating that the hardness of the Cr-rich oxide scale increased as the temperature decreased.

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High Temperature Oxidation of Indefinite Chill Roll Material Under Dry and Humid Atmospheres

Líu

Jiang

Chen

et al. 2015

steel research int.

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In this paper, the isothermal oxidation of the indefinite chill (IC) roll is investigated by using a thermogravimetric analyzer (TGA) from 550 to 700 °C under dry and humid atmospheres. It is found that the oxidation kinetics follow a linear trend and the oxide scale consists of two layers after the oxidation in dry air but three layers in humid air above 600 °C. In dry air, the graphite is covered by the oxide scale above 650 °C. The water vapor accelerates the oxidation of the matrix and the graphite. The graphite is covered by the extension of the oxide scale above 600 °C in humid air. The as‐treated samples are examined with SEM and XRD, while the kinetics is based on TGA results.

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Analysis and prevention of sticking occurring during hot rolling of ferritic stainless steel

Cited by 28 publications

References 14 publications

Investigation of oxide scale on ferritic stainless steel B445J1M and its tribological effect in hot rolling

Investigation of oxide scale on ferritic stainless steel B445J1M and its tribological effect in hot rolling

Influence of Cr-Rich Oxide Scale on Sliding Wear Mechanism of Ferritic Stainless Steel at High Temperature

High Temperature Oxidation of Indefinite Chill Roll Material Under Dry and Humid Atmospheres

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