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Effect on wear properties of coating the surface of 904L super austenitic stainless steel by APS with white/grey Al2O3
Transactions of the IMF ( IF 1.9 ) Pub Date : 2022-05-10 , DOI: 10.1080/00202967.2022.2061465
Ersan Mertgenç 1
Affiliation  

ABSTRACT

Although stainless steels are widely used in industry due to their high corrosion resistance, low surface hardness is considered a disadvantage when exposed to repeated loads. In this study, the effects of coating the surfaces of 904L super austenitic stainless steel by the Atmospheric Plasma Spray (APS) method using grey and white alumina on microstructural and tribological properties were investigated.

According to the results of the examination, a flat homogeneous coating layer was obtained. In the coatings made with both materials, α-Al2O3 and γ-Al2O3 phases were formed on the surface. Although the coating layer thickness is higher in grey alumina, the hardness is higher in coatings made with white alumina, and the surface hardness has increased by 2–3 times. According to the wear tests, it was determined that the wear resistance of white alumina was higher and the wear resistance of the alumina coating increased 3–4 times.



中文翻译:

白/灰Al2O3 APS涂层对904L超级奥氏体不锈钢表面磨损性能的影响

摘要

尽管不锈钢因其高耐腐蚀性而在工业中得到广泛使用,但当承受重复载荷时,低表面硬度被认为是一个缺点。在这项研究中,研究了使用灰色和白色氧化铝通过大气等离子喷涂 (APS) 方法涂覆 904L 超级奥氏体不锈钢表面对微观结构和摩擦学性能的影响。

根据检查结果,获得了平坦的均匀涂层。在用这两种材料制成的涂层中,表面形成了α-Al 2 O 3和γ-Al 2 O 3相。虽然灰色氧化铝的涂层厚度较高,但用白色氧化铝制成的涂层硬度更高,表面硬度增加了2-3倍。根据磨损试验,确定白色氧化铝的耐磨性更高,氧化铝涂层的耐磨性提高了3-4倍。

更新日期:2022-05-10
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