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Test research on sticking mechanism during hot rolling of SUS 430 ferritic stainless steel

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Abstract

The sticking phenomenon during hot rolling of SUS 430 ferritic stainless steel was investigated by means of a two-disc type high-temperature wear tester. The test results indicate that sticking particles on the surfaces of high chromium steel (HiCr) and high-speed steel (HSS) rolls undergo nucleation, growth, and saturation stages. Grooves on the roll surface generated by grinding provide nucleation sites for sticking particles. The number of sticking particles on the HiCr roll surface is greater than that on the HSS roll surface. The average surface roughnesses (R a) of HiCr and HSS rolls change from 0.502 and 0.493 μm at the initial stage to 0.837 and 0.530 μm at the saturation stage, respectively. The test further proves that the sticking behavior is strongly dependent on roll materials, and the HSS roll is more beneficial to prevent particles sticking compared with the HiCr roll under the same hot-rolling conditions.

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Authors and Affiliations

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Jun-xian Liu, Yong-jun Zhang & Jing-tao Han

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  1. Jun-xian Liu
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  2. Yong-jun Zhang
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  3. Jing-tao Han
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Correspondence to Jun-xian Liu.

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Liu, Jx., Zhang, Yj. & Han, Jt. Test research on sticking mechanism during hot rolling of SUS 430 ferritic stainless steel. Int J Miner Metall Mater 17, 573–578 (2010). https://doi.org/10.1007/s12613-010-0359-8

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  • DOI: https://doi.org/10.1007/s12613-010-0359-8

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