Effect of Laser Surface Modification on Texture, Roughness, Wettability and Surface Energy of Hastelloy C22, C276 & X

Q4 Physics and Astronomy

Defect and Diffusion Forum Pub Date : 2024-01-09 DOI:10.4028/p-5jhop9

P. Suvin, Ambesh Singh, B. D. K. Patro, Vimal Edachery, S. Kailas, J. Horng

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引用次数: 0

Abstract

Hastelloy is a nickel-chromium-molybdenum-iron-based alloy and a member of the ‘superalloy’ family. Hastelloy has exceptional properties like high strength, wear resistance and high-temperature stress-corrosion resistance. Therefore, Hastelloy is used in gas turbines, power plants, metal injection molding, etc. Many industrial applications are related to the properties of the surface. Wettability is a key surface property that affects applications like lubrication, adhesion, coating, heat conduction, etc. Laser Texturing is an excellent method to modify the surface properties of materials like metal, polymers and ceramic. In the present study, a carbon dioxide laser created unidirectional textures on Hastelloy (C22, C276, X). Different sets of unidirectional textures were formed by changing the laser power and frequency. Various roughness parameters were compared for every laser parameter. In this paper, the effective change in wettability properties of Hastelloy (C22, C276, X) after the Laser texturing process for a range of power and frequency were studied under DI water and glycerol as test fluids. Results show that the contact angle of the test fluid increases as the laser power increases, and the contact angle decreases as the laser frequency increases for all three superalloys. The surface energy of a given set of samples was also measured using the recorded contact angle of DI water and Glycerol by the OWRK equation. Similar trends were found in surface energy for all three Hastelloy.

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激光表面改性对哈氏合金 C22、C276 和 X 的纹理、粗糙度、润湿性和表面能的影响

哈氏合金是一种镍铬钼铁基合金，属于 "超级合金 "家族。哈氏合金具有高强度、耐磨性和耐高温应力腐蚀等优异性能。因此，哈氏合金被广泛应用于燃气轮机、发电厂、金属注射成型等领域。许多工业应用都与表面特性有关。润湿性是影响润滑、粘附、涂层、热传导等应用的关键表面特性。激光纹理加工是改变金属、聚合物和陶瓷等材料表面特性的一种极佳方法。在本研究中，二氧化碳激光在哈氏合金（C22、C276、X）上产生了单向纹理。通过改变激光功率和频率，形成了不同的单向纹理。对每种激光参数的各种粗糙度参数进行了比较。本文研究了在去离子水和甘油作为测试流体的条件下，不同功率和频率的激光纹理加工后哈氏合金（C22、C276、X）润湿性能的有效变化。结果表明，对于所有三种超耐热合金来说，测试流体的接触角随着激光功率的增加而增大，而接触角随着激光频率的增加而减小。还利用 DI 水和甘油的接触角记录，通过 OWRK 方程测量了一组给定样品的表面能。发现所有三种哈氏合金的表面能都有类似的趋势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Defect and Diffusion Forum Physics and Astronomy-Radiation

CiteScore

1.20

自引率

0.00%

发文量

127

期刊介绍： Defect and Diffusion Forum (formerly Part A of ''''Diffusion and Defect Data'''') is designed for publication of up-to-date scientific research and applied aspects in the area of formation and dissemination of defects in solid materials, including the phenomena of diffusion. In addition to the traditional topic of mass diffusion, the journal is open to papers from the area of heat transfer in solids, liquids and gases, materials and substances. All papers are peer-reviewed and edited. Members of Editorial Boards and Associate Editors are invited to submit papers for publication in “Defect and Diffusion Forum” . Authors retain the right to publish an extended and significantly updated version in another periodical.