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首页> 外文期刊>Materials Science and Engineering >Mechanical properties of Inconel 625 laser cladded coatings: Depth sensing indentation analysis
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Mechanical properties of Inconel 625 laser cladded coatings: Depth sensing indentation analysis

机译：Inconel 625激光熔覆涂层的机械性能：深度感应压痕分析

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摘要

Ni-base superalloys, like Inconel 625, exhibit a high corrosion and oxidation resistance. For this reason, these alloys are typically used to manufacture engineering components, or coatings for cheaper metallic substrates, which should work in extreme conditions including mechanical loads and an aggressive environment at high temperature. Some of these applications could be found in chemical and petrochemical plants, power generation sector, aircraft engines components, heat exchanger tubing or boilers of waste incinerators. The advantages of using coatings protecting cheaper materials are the significant cost reductions compared to using bulk alloys.In this work, a Ni-base superalloy Inconel 625 was deposited onto a medium alloy steel by laser cladding using a high-power diode laser. A process parameters selection was performed following a Taguchi's array with the aim to reduce the number of performed tests. The mechanical properties (hardness and elastic modulus) of the Inconel 625 coatings were studied by nanoindentation. The mechanical properties were obtained from each indentation as a function of the penetration depth. These results were compared with those obtained previously in two other Inconel 625 coatings processed by cold-spray and laser re-melting cold-spray techniques. A comparison among the mechanical properties and the microstructures of these coatings was carried out to evaluate alternative methods to produce Inconel 625 coatings.
机译：镍基高温合金（如Inconel 625）具有很高的耐腐蚀性和抗氧化性。因此，这些合金通常用于制造工程部件或用于廉价金属基材的涂料，它们应在极端条件下工作，包括机械负载和高温下的侵蚀性环境。其中一些应用可以在化工厂和石化工厂，发电部门，飞机发动机组件，热交换器管道或废物焚化炉的锅炉中找到。与使用散装合金相比，使用保护廉价材料的涂层的优势在于可显着降低成本。在这项工作中，使用大功率二极管激光器通过激光熔覆将Ni基超合金Inconel 625沉积在中合金钢上。在田口氏阵列之后进行工艺参数选择，目的是减少进行的测试的数量。通过纳米压痕研究了Inconel 625涂层的机械性能（硬度和弹性模量）。从每个压痕获得的机械性能是渗透深度的函数。将这些结果与先前在通过冷喷涂和激光重熔冷喷涂技术处理的另外两种Inconel 625涂层中获得的结果进行了比较。对这些涂层的机械性能和微观结构进行了比较，以评估生产Inconel 625涂层的替代方法。

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  • 来源
    《Materials Science and Engineering》 |2014年第26期|15-21|共7页
  • 作者

    D.Verdi; M.A.Garrido; C.J.Munez; P.Poza;

  • 作者单位

    DIMME - Departamento de Tecnologia Mecanka, Universidad Rey Juan Carlos - Escuela Superior de Ciencia Experimental y Tecnologia - Calle Tulipan s,28933 Mostoles, Madrid, Spain;

    DIMME - Departamento de Tecnologia Mecanka, Universidad Rey Juan Carlos - Escuela Superior de Ciencia Experimental y Tecnologia - Calle Tulipan s,28933 Mostoles, Madrid, Spain;

    DIMME - Departamento de Tecnologia Mecanka, Universidad Rey Juan Carlos - Escuela Superior de Ciencia Experimental y Tecnologia - Calle Tulipan s,28933 Mostoles, Madrid, Spain;

    DIMME - Departamento de Tecnologia Mecanka, Universidad Rey Juan Carlos - Escuela Superior de Ciencia Experimental y Tecnologia - Calle Tulipan s,28933 Mostoles, Madrid, Spain;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Inconel coatings; Laser cladding; Taguchi's array; Depth sensing indentation; (nanoindentation); Scanning Electron Microscopy (SEM);

    机译：铬镍铁合金涂料;激光熔覆;田口的阵列;深度感应压痕;（纳米压痕）;扫描电子显微镜（SEM）;

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