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<p>In this study, a new carbide containing Hadfield steel material is designed and used for fabricating cone crusher mantle and concave liners. The new liners were conducted on-board crushing test in a mining factory. The mechanical properties, microstructure evolution of carbide containing Hadfield steel, and wear and service behavior of liners were studied by combining laboratory and practical data. The results showed that the microstructure of new Hadfield steel consisted of austenite matrix, (V, Ti)(C, N) and M<sub>7</sub>C<sub>3</sub> carbides. The hardness of the new Hadfield steel could reach 258.6&#xa0;HBW, which was 23% increase as traditional Mn13Cr2 steel. The new Hadfield steel showed yield strength up to higher than 500&#xa0;MPa and a moderate impact toughness of 64.0&#xa0;J/cm<sup>2</sup>. The service life of the new Hadfield steel liners showed increase higher than 45% as compared with Mn13Cr2 liners. A hardening layer with thickness higher than 2 mm could be obtained for the new Hadfield steel liners after the crushing process. The hardening behavior was fiercer for the mantle liner and the wear degree of mantle liner was smaller. The carbide particles helped improving the hardness and act as hard obstacles to hinder the furrow formation. Deformation twin and dislocation tangle near small carbides contributed to the formation of new hard surface. The new carbide containing Hadfield steel showed good wear resistance and it was suitable for fabricating cone crusher liners.</p>

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Wear and Service Behavior of a New Carbide Containing Hadfield Steel Liner for Cone Crusher

  • 期刊论文

  • 发表日期：

    2025年12月11日

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  • Siyao Bi,
  • Yongjin Wang,
  • Juan Lv,
  • Haipeng Li,
  • Renbo Song,
  • Bin Hu,
  • Junkui Li

摘要

In this study, a new carbide containing Hadfield steel material is designed and used for fabricating cone crusher mantle and concave liners. The new liners were conducted on-board crushing test in a mining factory. The mechanical properties, microstructure evolution of carbide containing Hadfield steel, and wear and service behavior of liners were studied by combining laboratory and practical data. The results showed that the microstructure of new Hadfield steel consisted of austenite matrix, (V, Ti)(C, N) and M7C3 carbides. The hardness of the new Hadfield steel could reach 258.6 HBW, which was 23% increase as traditional Mn13Cr2 steel. The new Hadfield steel showed yield strength up to higher than 500 MPa and a moderate impact toughness of 64.0 J/cm2. The service life of the new Hadfield steel liners showed increase higher than 45% as compared with Mn13Cr2 liners. A hardening layer with thickness higher than 2 mm could be obtained for the new Hadfield steel liners after the crushing process. The hardening behavior was fiercer for the mantle liner and the wear degree of mantle liner was smaller. The carbide particles helped improving the hardness and act as hard obstacles to hinder the furrow formation. Deformation twin and dislocation tangle near small carbides contributed to the formation of new hard surface. The new carbide containing Hadfield steel showed good wear resistance and it was suitable for fabricating cone crusher liners.