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Exploiting Suspension Plasma Spraying to Deposit Wear-Resistant Carbide Coatings

机译：利用悬浮等离子喷涂沉积耐磨碳化物涂层

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摘要

Titanium- and chromium-based carbides are attractive coating materials to impart wear resistance. Suspension plasma spraying (SPS) is a relatively new thermal spray process which has shown a facile ability to use sub-micron and nano-sized feedstock to deposit high-performance coatings. The specific novelty of this work lies in the processing of fine-sized titanium and chromium carbides (TiC and Cr3C2) in the form of aqueous suspensions to fabricate wear-resistant coatings by SPS. The resulting coatings were characterized by surface morphology, microstructure, phase constitution, and micro-hardness. The abrasive, erosive, and sliding wear performance of the SPS-processed TiC and Cr3C2 coatings was also evaluated. The results amply demonstrate that SPS is a promising route to manufacture superior wear-resistant carbide-based coatings with minimal in situ oxidation during their processing.
机译：钛和铬基碳化物是具有吸引力的涂层材料，可赋予耐磨性。悬浮等离子喷涂（SPS）是一种相对较新的热喷涂工艺，它具有使用亚微米和纳米级原料沉积高性能涂料的便捷能力。这项工作的特别新颖之处在于以水悬浮液的形式加工细小尺寸的碳化钛和碳化铬（TiC和Cr3C2），以通过SPS制造耐磨涂层。所得涂层的特征在于表面形态，微观结构，相组成和显微硬度。还评估了SPS处理的TiC和Cr3C2涂层的磨蚀性，侵蚀性和滑动磨损性能。结果充分表明，SPS是一种在加工过程中原位氧化最少的优异耐磨碳化物基涂层制造途径。

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