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首页> 外文期刊>ISIJ international >Carbide Dispersion Carburizing (CDC) of Fe-Mo-V Based High-speed Steels
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Carbide Dispersion Carburizing (CDC) of Fe-Mo-V Based High-speed Steels

机译：Fe-Mo-V基高速钢的碳化物弥散渗碳（CDC）

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摘要

The carbide dispersion carburizing process was applied to Fe-based high-speed steels, which contained multiple carbide-forming elements, Mo and V. Fine carbides precipitated during the carburization and the dispersed particles in the Fe-Mo-V-C alloys heat-treated at 1 200℃ were identified as VC, (Mo, V)_2C, and (Fe ,Mo)_6C, which behave as effective inhibitors against the grain growth of austenite and as reinforcers resulting in increased hardness of the martensitic matrix. The maximum Vickers hardness of the Fe-10Mo-5V-2.05C alloy quenched from 1 200℃ and tempered at 600℃ achieved values of 1 100 and 1 000, respectively. Thermodynamic calculation of the Fe-Mo-V-C quaternary system proved to be useful for optimizing the composition of carbide forming elements, the carburizing conditions, and the microstructure of carbur-ized and solution-treated alloys.
机译：碳化物弥散渗碳工艺适用于含有多种碳化物形成元素Mo和V的Fe基高速钢。渗碳过程中细小的碳化物析出，Fe-Mo-VC合金中的分散颗粒在进行热处理。 1200℃被确定为VC，（Mo，V）_2C和（Fe，Mo）_6C，它们是抑制奥氏体晶粒长大的有效抑制剂和增强剂，导致马氏体基体的硬度增加。从1200℃淬火到600℃回火的Fe-10Mo-5V-2.05C合金的最大维氏硬度分别达到1100和1000。 Fe-Mo-V-C四元体系的热力学计算证明对优化碳化物形成元素的组成，渗碳条件以及渗碳和固溶处理合金的微观结构很有用。

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