Heat Treatment of Centrifugally Cast High-Vanadium Alloy Steel for High-Pressure Grinding Roller |
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| Authors: | Haizhi Li, Weiping Tong, Junjun Cui, Hui Zhang, Liqing Chen, Liang Zuo |
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| Affiliation: | 1. Key Laboratory for Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang, 110819, China2. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, China3. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University, Shenyang, 110819, China |
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| Abstract: | The roller is one of the main parts of a high-pressure grinding roller, which is a type of highly efficient ore crushing equipment. Its working life is strongly affected by the materials used. In this paper, a new kind of roller material, the high-vanadium alloy steel (HVAS), was investigated. The results showed that the as-cast microstructures of the HVAS roller contained martensite, residual austenite, and alloy carbides. The HVAS sample quenched at 1,080 °C had a high hardness, and it had much higher compressive strength and abrasive wear resistance after tempering at 560 °C for 30 min. The mechanical properties of the HVAS are more sufficient than the existing roller materials, which are feasible for larger machine design. |
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| Keywords: | High-vanadium alloy steel Heat treatment High-pressure grinding roller Compressive strength Abrasive wear resistance |
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