Enhancing surface properties of electric discharge coating using a Ti6Al4V powder 3DPE method on tungsten substrate

IF 4.2 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY International Journal of Refractory Metals & Hard Materials Pub Date : 2024-08-09 DOI:10.1016/j.ijrmhm.2024.106844

Jung-Chou Hung, Siddanna Awarasang

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Abstract

This research evaluates the use of novel 3D-printed titanium alloy electrodes (3DPEs) as electrical discharge coating (EDC) on tungsten surfaces. Characterization through experimental analyses revealed that 3DPEs provide significant improvements in coating thickness and titanium content when compared to conventional EDC techniques. At suitable parameters, the 3DPE coatings achieved a thickness of 119.61 μm, surpassing conventional coatings at 15.18 μm. Additionally, the 3DPE coatings exhibited higher titanium concentrations, reaching 74.93%, indicating enhanced performance. A statistical analysis highlights the balance between surface roughness and material transfer rate (MTR), with conventional coatings exhibiting a more favorable balance. Optimal pulse on/off times maximize MTR and minimize surface roughness, respectively, with 3DPE coatings offering a more straightforward optimization path. Therefore, 3DPEs present a transformative approach to EDC, offering thicker, more uniform coatings with customizable electrical properties for diverse applications.

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使用 Ti6Al4V 粉末 3DPE 方法提高钨基材放电涂层的表面性能

这项研究评估了新型三维打印钛合金电极（3DPE）作为钨表面放电涂层（EDC）的使用情况。实验分析表明，与传统的放电涂层技术相比，3DPE 在涂层厚度和钛含量方面都有显著提高。在合适的参数下，3DPE 涂层的厚度达到 119.61 μm，超过了传统涂层的 15.18 μm。此外，3DPE 涂层的钛浓度更高，达到了 74.93%，表明其性能得到了增强。统计分析强调了表面粗糙度和材料转移率（MTR）之间的平衡，传统涂层表现出更有利的平衡。最佳脉冲开/关时间分别使材料转移率最大化和表面粗糙度最小化，而 3DPE 涂层提供了更直接的优化途径。因此，3DPE 为 EDC 提供了一种变革性的方法，可为各种应用提供更厚、更均匀、具有可定制电气特性的涂层。

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来源期刊

$International Journal of Refractory Metals & Hard Materials$

International Journal of Refractory Metals & Hard Materials 工程技术-材料科学：综合

CiteScore

7.00

自引率

13.90%

发文量

236

审稿时长

35 days

期刊介绍： The International Journal of Refractory Metals and Hard Materials (IJRMHM) publishes original research articles concerned with all aspects of refractory metals and hard materials. Refractory metals are defined as metals with melting points higher than 1800 °C. These are tungsten, molybdenum, chromium, tantalum, niobium, hafnium, and rhenium, as well as many compounds and alloys based thereupon. Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds. A special focus of this journal is put on the family of hardmetals, which is also known as cemented tungsten carbide, and cermets which are based on titanium carbide and carbonitrides with or without a metal binder. Ceramics and superhard materials including diamond and cubic boron nitride may also be accepted provided the subject material is presented as hard materials as defined above.