Investigating abrasive water jet drilling of YSZ-Coated inconel 718: A surface topography and morphology study

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Chemistry and Physics Pub Date : 2025-04-23 DOI:10.1016/j.matchemphys.2025.130926

Balaji Vasudevan , Lenin Nagarajan , Md Irfanul Haque Siddiqui , Murugu Nachippan N , Sarangapani Palani , Yuvaraj Natarajan

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Abstract

This study investigates the effects of abrasive water jet (AWJ) drilling parameters on the surface characteristics of Yttrium Stabilized Zirconia (YSZ)-coated Inconel 718 superalloy. The influence of water jet pressure (175–325 MPa), abrasive flow rate (250–400 g/min), and jet impact angle (0°–45°) on surface integrity was examined. Surface analysis was performed using a Talysurf CCI Lite instrument and Hitachi S–3400 N scanning electron microscope. Results indicate that minimum process parameters with a 15° piercing angle reduced Sa to 1.451 μm and Sz to 9.140 μm, while maximum parameters at 30° increased Sa to 7.080 μm and Sz to 38.670 μm. SEM analysis revealed that pierced holes were free from thermal defects, with no evidence of cracks or delamination in the ceramic layer.1 Optimizing AWJ drilling parameters, particularly the piercing angle, can significantly enhance the surface quality of YSZ-coated Inconel 718. This study provides insights for improving cooling efficiency and extending component life in jet engine applications.

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磨料水射流钻削ysz涂层inconel 718的表面形貌和形貌研究

本研究探讨了加砂水射流（AWJ）钻孔参数对钇稳定氧化锆（YSZ）涂层 Inconel 718 超耐热合金表面特性的影响。研究了水射流压力（175-325 兆帕）、磨料流速（250-400 克/分钟）和射流冲击角（0°-45°）对表面完整性的影响。使用 Talysurf CCI Lite 仪器和日立 S-3400 N 扫描电子显微镜进行了表面分析。结果表明，15° 穿孔角的最小工艺参数将 Sa 减小到 1.451 μm，Sz 减小到 9.140 μm，而 30° 穿孔角的最大参数将 Sa 增大到 7.080 μm，Sz 增大到 38.670 μm。扫描电子显微镜分析表明，穿孔没有热缺陷，陶瓷层也没有裂缝或分层迹象。1 优化 AWJ 钻孔参数，尤其是穿孔角度，可以显著提高 YSZ 涂层 Inconel 718 的表面质量。这项研究为喷气发动机应用中提高冷却效率和延长部件寿命提供了启示。

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来源期刊

Materials Chemistry and Physics 工程技术-材料科学：综合

CiteScore

8.70

自引率

4.30%

发文量

1515

审稿时长

69 days

期刊介绍： Materials Chemistry and Physics is devoted to short communications, full-length research papers and feature articles on interrelationships among structure, properties, processing and performance of materials. The Editors welcome manuscripts on thin films, surface and interface science, materials degradation and reliability, metallurgy, semiconductors and optoelectronic materials, fine ceramics, magnetics, superconductors, specialty polymers, nano-materials and composite materials.