The thermoplastic characteristics of high-manganese steels with different phosphorus and sulfur contents were investigated. The zero-ductility temperature and plasticity-temperature range of the high-manganese steels were reduced significantly with increase in phosphorus or sulfur content. The relationship between the initial forging temperature of the high-manganese steel and the content of phosphorus and sulfur can be expressed as Tift = 1200 – 1530wS – 1650wP. The final forging temperature is 900°C, and the heating rate during the forging of the high-manganese steel crossing must be slow. The lifetime of the forged high-manganese steel crossing was almost doubled compared with conventional cast high-manganese steel crossing.
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This work was supported by the National Natural Science Youth Fund (No. 51501161). We thank Laura Kuhar, PhD, from Edanz Group (www.edanzediting.com/ac) for editing a draft of this manuscript.
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Wang, Y., Lv, B. & Zhang, F. Forging of High-Manganese Steel Crossing. Metallurgist 62, 181–184 (2018). https://doi.org/10.1007/s11015-018-0642-x
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DOI: https://doi.org/10.1007/s11015-018-0642-x