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首页> 外文会议>Journal of Rare Earths >Effect of Rare Earths on Structure and Properties of Carbonitriding Boronizing Combined Treatment
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Effect of Rare Earths on Structure and Properties of Carbonitriding Boronizing Combined Treatment

机译：稀土对碳氮共渗渗硼联合处理结构和性能的影响

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摘要

The microstructure, thickness, microhardness and wear resistance of single-boronizing, carbonitriding+boronizing and carbonitriding+RE- boronizing layers of 16Mn steel were investigated respectively. Effect of rare earths on microstructure and properties of the penetrated layer were studied and the mechanism of effects of rare earths was discussed. The result showed that the structure, microhardness, brittleness and wear resistance of the penetrated layer after carbonitriding+RE-boronizing were better than that of conventional boronizing and carbonitriding, especially the wear resistance of boronized layer was increased remarkably. The RE- boronizing layer of the steel is single phase Fe<,2> B, and RE elements enhanced Fe<,2>B (002) direction texture. The distribution of rare earth element (La) in the layer was non-uniform. RE content is higher between borides than that of the interior of borides. An optimum value of the addition of RE element in the agent was 8%. The average service life of the 16Mn steel brickmould treated by carbonitriding+RE- boronizing was 1.5 times as long as the service life of the mould treated by carbonitriding-boronizing.
机译：分别研究了16Mn钢的单硼化，碳氮共渗+硼化和碳氮共渗+再硼化层的组织，厚度，显微硬度和耐磨性。研究了稀土对渗透层组织和性能的影响，探讨了稀土作用机理。结果表明，碳氮共渗+稀土硼化后的渗层的组织，显微硬度，脆性和耐磨性均优于常规渗硼和碳氮共渗，尤其是渗硼层的耐磨性明显提高。钢的渗硼层是单相Fe 2，2 B，RE元素增强了Fe 2，2 B（002）方向织构。稀土元素（La）在层中的分布不均匀。硼化物之间的RE含量高于硼化物内部的RE含量。在该试剂中添加RE元素的最佳值为8％。碳氮共渗+再渗硼处理的16Mn钢砖的平均使用寿命是碳氮共渗-硼化处理的模具的使用寿命的1.5倍。

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