阴极电弧离子镀TiAlSiN涂层的高温抗氧化性能研究
发布时间：2018-09-07 09:47
【摘要】：采用阴极电弧离子镀工艺在硬质合金基体表面沉积TiAlSiN涂层,在箱式电阻炉内对涂层进行了高温抗氧化实验,分析了涂层高温氧化后的表面形貌、断口形貌以及组织成分,并将TiN、AlTiN涂层式样的氧化行为进行对比。结果表明:800℃时,TiN、AlTiN涂层均已受到不同程度的氧化破坏,TiN涂层已经失效,TiAlSiN涂层的断口组织均匀,连续性好。通过能谱分析,引入Si元素涂层表面氧化率低于TiN、AlTiN涂层,使得TiAlSiN涂层的抗氧化性能更好。同时,TiAlSiN涂层在1000℃开始发生氧化破坏,基体边缘受损。
[Abstract]:TiAlSiN coating was deposited on the surface of cemented carbide by cathodic arc ion plating. The oxidation resistance of the coating at high temperature was carried out in a box resistance furnace. The surface morphology, fracture morphology and microstructure of the coating after high temperature oxidation were analyzed. The oxidation behavior of TiN,AlTiN coating was compared. The results show that the TiAlSiN coating has been destroyed by oxidation at 800 鈩，
本文编号：2227900
[Abstract]:TiAlSiN coating was deposited on the surface of cemented carbide by cathodic arc ion plating. The oxidation resistance of the coating at high temperature was carried out in a box resistance furnace. The surface morphology, fracture morphology and microstructure of the coating after high temperature oxidation were analyzed. The oxidation behavior of TiN,AlTiN coating was compared. The results show that the TiAlSiN coating has been destroyed by oxidation at 800 鈩，
本文编号：2227900
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