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首页> 外文期刊>High temperature materials and processes >Structure and Properties of the Aluminide Coatings on the Inconel 625 Superalloy
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Structure and Properties of the Aluminide Coatings on the Inconel 625 Superalloy

机译：Inconel 625高温合金上铝化物涂层的结构和性能

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摘要

The research samples used in this study were based on the Inconel 625 alloy; the examined samples were coated with aluminide films deposited in a low-activity chemical vapor deposition (CVD) process. The samples' microstructure was investigated with optical and electron microscopy and energy dispersive X-ray spectroscopy analysis. Hardness measurements were performed using Vickers and Berkovich test methods. The adhesion of the aluminide coating was determined by fractography. It was shown that the fracture mechanism was different for the respective zones of the aluminide coating and the substrate material. The outer zone of the aluminide coating is characterized by an intercrystalline fracture, with a small contribution of transcrystalline fracture within individual grains (large crystallites in the bottom of the zone, composed of smaller crystallites, also show an intercrystalline fracture). The substrate material exhibited a ductile intercrystalline fracture. Based on this investigation, an increase of the microhardness of the material occurring at loads below 0.2 N was observed. When determining microhardness of aluminide coating it is necessary to take into account the optimal choice of the indentation tip.
机译：本研究中使用的研究样品均基于Inconel 625合金。被检查的样品涂有以低活性化学气相沉积（CVD）工艺沉积的铝化物膜。用光学和电子显微镜以及能量色散X射线光谱分析法研究了样品的微观结构。硬度测量是使用维克斯和贝科维奇测试方法进行的。铝化物涂层的粘附力通过分形法测定。结果表明，对于铝化物涂层和基底材料的各个区域，断裂机理是不同的。铝化物涂层的外部区域的特征是晶间断裂，单个晶粒内的跨晶断裂贡献很小（该区域底部的大晶粒由较小的晶粒组成，也显示晶间断裂）。基底材料表现出韧性的晶间断裂。基于该研究，观察到在低于0.2 N的载荷下材料的显微硬度增加。在确定铝化物涂层的显微硬度时，有必要考虑压痕尖端的最佳选择。

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  • 来源
    《High temperature materials and processes》 |2016年第1期|103-112|共10页
  • 作者

    Stanislaw Adamiak; Wojciech Bochnowski; Andrzej Dziedzic; Ryszard Filip; Eugeniusz Szeregij;

  • 作者单位

    Centre for Innovation and Transfer of Natural Sciences and Engineering Knowledge, University of Rzeszow, Pigonia 1 Street, 35-959 Rzeszow, Poland;

    Centre for Innovation and Transfer of Natural Sciences and Engineering Knowledge, University of Rzeszow, Pigonia 1 Street, 35-959 Rzeszow, Poland;

    Centre for Innovation and Transfer of Natural Sciences and Engineering Knowledge, University of Rzeszow, Pigonia 1 Street, 35-959 Rzeszow, Poland;

    Department of Material Science, Rzeszow University of Technology, W. Pola 2 Street, 35-959 Rzeszow, Poland;

    Center for Microelectronics & Nanotechnology, University of Rzeszow, Pigonia 1 Street, 35-959 Rzeszow, Poland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CVD process; aluminide coating; Inconel 625; fracture material; micro- and nanohardness;

    机译：CVD工艺;铝化物涂层因科镍合金625;断裂材料显微和纳米硬度;

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