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首页> 外文会议>International Thermal Spray Conference >Erosion, Abrasive, and Friction Wear Behavior of Iron Aluminide Coatings Sprayed by HVOF
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Erosion, Abrasive, and Friction Wear Behavior of Iron Aluminide Coatings Sprayed by HVOF

机译：喷涂铁铝化涂料的腐蚀，磨料和摩擦磨损行为

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Iron aluminides have been proposed lately as promising materials for wear applications. Many authors have focused their investigations on the friction behavior of FeAl coatings, emphasizing the role of this intermetallic phase as a new matrix to embed ceramic particles and replace the extensively studied WC-Co cermet system for high temperature. However, few of these studies deal with the evaluation of the different tribological properties and their relationship with the coating microstructure. In the present study, the near stoichiometric Fe40Al was successfully sprayed by means of high velocity oxy-fuel using different particle size distribution and the tribological behavior was assessed through solid particle erosion, abrasive and dry sliding tests. The wear mechanisms of the deposited coatings are discussed with regard to the observed results. In addition, oxidized samples were tested to evaluate the role of the oxide top layer; also, the powder was previously annealed to produce a coating with an almost fully ordered FeAl structure.
机译：最近提出了铁铝化物作为磨损应用的有希望的材料。许多作者的研究重点是对Feal涂层的摩擦行为的调查，强调该金属间相对于嵌入陶瓷颗粒的新基质并更换广泛研究的WC-Co Cermet系统进行高温。然而，这些研究中的很少有人处理对不同摩擦学性质的评估及其与涂层微观结构的关系。在本研究中，使用不同的粒度分布通过高速氧燃料成功喷涂了近的化学计量Fe40Al，并且通过固体颗粒腐蚀，磨料和干燥的滑动试验评估了摩擦学行为。关于观察结果讨论了沉积涂层的磨损机构。此外，测试氧化样品以评估氧化物顶层的作用;而且，先前将粉末退火以产生具有几乎完全有序的Feal结构的涂层。

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