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本文探讨C、Mn、Cr不同含量,孕育处理及热处理工艺对奥氏体锰钢组被和性能的影响,特别着重研讨了在非强烈冲击工况下对其加工硬化能力和耐磨性的提高。试验结果表明:Mn7Cr2与Mn9Cr2在保持足够高的冲击韧性(8～l4kgf·m/Cm~2)条件下,比现用高锰钢加工硬化率提高33％;原始硬度HB提高40～60;屈服强度提高15kgf/mm~2以上。因此用这两种材料制作风扇磨打击板其使用寿命高于普通高锰钢。
In this paper, the effects of different contents of C, Mn and Cr, inoculation and heat treatment on the properties and properties of austenitic manganese steel are discussed. The hardening and wear resistance of the austenitic manganese steel are especially studied under non-intense impact conditions . The experimental results show that the work hardening rate of Mn7Cr2 and Mn9Cr2 is 33% higher than that of the current high manganese steel and the initial hardness HB is increased 40-60 under the condition of sufficiently high impact toughness (8 ~ 14kgf · m / cm2) Strength increased 15kgf / mm ~ 2 or more. Therefore, the use of these two materials to produce fan mill hit board its service life is higher than ordinary high manganese steel.