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首页> 外文期刊>Journal of Iron and Steel Research International >In-Situ Austenite Steel Matrix Composite Reinforced by Granular gamma + (Fe,Mn)_3C Eutectic
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In-Situ Austenite Steel Matrix Composite Reinforced by Granular gamma + (Fe,Mn)_3C Eutectic

机译：γ粒子+（Fe，Mn）_3C共晶增强的原位奥氏体钢基复合材料

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摘要

A new in-situ austenite matrix composite reinforced by granular gamma + (Fe,MN)_3C binary eutectics (abbreviated to in-situ AMGE) was prepared in as-cast state, in which the modifier, yttrium-based heavy rare earth alloy, was used to influence carbon segregation, manganese segregation and phase formation. The eutectics are formed in the molten pools among austenite dendrites at the later stage of non-equilibrium solidification because the modifier enhances carbon segregation and manganese segregation greatly. Pin-on-disc dry wear tests show that the wear resistance of in-situ AMGE is 1-3 times higher than that of austenite medium manganese steel under low and medium loads, and the loads under which serious wear of in-situ AMGE occurs are much higher than that of austenite medium manganese steel.
机译：以铸态制备了一种新型的由颗粒γ+（Fe，MN）_3C二元共晶体（缩写为原位AMGE）增强的原位奥氏体基体复合材料，其中，改性剂为钇基重稀土合金，用来影响碳的偏析，锰的偏析和相的形成。在非平衡凝固的后期，共晶形成在奥氏体枝晶间的熔池中，这是因为改性剂大大增强了碳的偏析和锰的偏析。针盘式干磨损试验表明，在低和中等载荷下，原位AMGE的耐磨性是奥氏体中锰钢的1-3倍，在这种载荷下会发生原位AMGE的严重磨损远高于奥氏体中锰钢。

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