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位错、孪晶、微晶和非晶态组织是高能冲击接触载荷下高锰钢变形的主要组织形态,高密度变形条带相互交叉、阻滞或截割,使奥氏体组织严重细化为微晶甚至是纳米晶,同时发生严重的点阵畸变,使晶体的自由能升高,晶体变成非晶态;微晶与非晶态的产生是高能量冲击载荷下,高锰钢加工硬化的一种机制;微晶和非晶的产生及其镶嵌分布是高锰钢在高能冲击接触载荷下具有较高综合机械性能、优越耐磨性的一个很重要的原因。
The dislocations, twins, crystallites and amorphous structures are the main morphologies of the high manganese steel deformation under high energy impact contact load. The high density deformation bands cross each other, block or cut the austenite structure seriously For the crystallites or even nanocrystals, while severe lattice distortion, the free energy of the crystal increases, the crystal becomes amorphous; microcrystalline and amorphous state is generated under high-energy impact load, high manganese steel processing Hardening of a mechanism; microcrystalline and amorphous generation and mosaic distribution of high manganese steel under high-energy impact contact load has a high overall mechanical properties, superior wear resistance of a very important reason.