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首页> 外文期刊>ISIJ international >Precipitation Process of TiC in Low Alloy Martensitic Steel and Its Effect on Wear Resistance
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Precipitation Process of TiC in Low Alloy Martensitic Steel and Its Effect on Wear Resistance

机译：低合金马氏体钢中TiC的析出过程及其对耐磨性的影响

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摘要

Traditional low-alloy martensitic steel is widely used as wear-resistant steel parts.But the contradiction between hardness and processing as well as welding performance is prominent,which limits the development of wear resistance. Titanium carbide is often used in industrial production as a metal-based wear-resistant phase, which is an inexpensive reinforcement that contributes to excellent overall performance. In this paper, a series of low-alloy martensitic steel sheets with same hardness grade and different Ti content of 0 wt%, 0.2 wt%, 0.3 wt%, 0.4 wt%, 0.5 wt% and 0.7 wt% are designed, respectively. The morphology and distribution of TiC precipitates in steel were characterized by OM, SEM, TEM and EPMA. The wear resistance was studied by wet sand semi-free abrasive wear test, and three modes of interaction between TiC particles and abrasives during wear process were summarized. The thermodynamic calculation was used to help explain the solidification precipitation process of titanium carbide particles.
机译：传统的低合金马氏体钢被广泛用作耐磨钢件，但硬度与加工以及焊接性能之间的矛盾突出，限制了耐磨性的发展。碳化钛通常在工业生产中用作金属基耐磨相，是一种廉价的增强材料，有助于提高整体性能。本文设计了一系列低硬度马氏体钢板，它们分别具有相同的硬度等级和不同的Ti含量，分别为0 wt％，0.2 wt％，0.3 wt％，0.4 wt％，0.5 wt％和0.7 wt％。用OM，SEM，TEM和EPMA对TiC析出物在钢中的形貌和分布进行了表征。通过湿砂半自由磨料磨损试验研究了其耐磨性，总结了TiC颗粒与磨料在磨损过程中的三种相互作用方式。通过热力学计算可以解释碳化钛颗粒的凝固沉淀过程。

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