Abstract To improve the wear resistance, toughness, and hardness of alloy, the quenching and partitioning (Q&P) technology was applied in the VC particulate (VCp) reinforced wear-resistant alloys, which were prepared by adding different Mn contents (2–5 wt%). The effects of partitioning time on the distribution of alloying elements shown by EDX mapping, retained austenite fraction, microstructure, macro-hardness, and impact toughness were investigated. The results showed that the effect of carbon partitioning time on the hard phase of the wear-resistant alloy was not significant. However, the carbon partitioning time greatly affected the microstructure and the mechanical properties of alloys, such as retained austenite, hardness, and impact toughness, and there was also a strong correlation with the Mn content. When the Mn content was lower (2.51 wt%), the retained austenite content increased with the carbon partitioning time, which resulted in decreased hardness and increased impact toughness. However, when the Mn content was higher (4.52 wt%), the opposite results occurred. This study provided an application of the Q&P technology in a VCp-reinforced wear-resistant alloy.

中文翻译：

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淬火配分(Q&P)技术对VC颗粒增强耐磨合金组织和力学性能的影响

摘要 为提高合金的耐磨性、韧性和硬度，将淬火和分配（Q&P）技术应用于 VC 颗粒（VCp）增强耐磨合金中，通过添加不同的 Mn 含量（2-5 wt %）。研究了分配时间对 EDX 映射显示的合金元素分布、残余奥氏体含量、显微组织、宏观硬度和冲击韧性的影响。结果表明，碳分配时间对耐磨合金硬质相的影响不显着。然而，碳配分时间对合金的显微组织和力学性能，如残余奥氏体、硬度和冲击韧性有很大影响，并且与Mn含量也有很强的相关性。当Mn含量较低时（2. 51 wt%)，残余奥氏体含量随着碳分配时间的增加而增加，导致硬度降低和冲击韧性增加。然而，当 Mn 含量较高 (4.52 wt%) 时，会出现相反的结果。本研究提供了 Q&P 技术在 VCp 增强耐磨合金中的应用。