4. おわりに
本稿で紹介した手法は，酸化皮膜の除去とレーザー照射条件の工夫に加えて，アルミニウムの濃度が高い箇所から優先的に腐食される挙動を組み合わせた新しい表面改質技術である。今後は摩擦制御表面や接着強化層，さらには機能性電極といった多様な産業用途への応用が期待される。
参考文献
1）M. Ijiri, F. Kato, T. Yoshimura, I. Nakatsugawa, Y. Chino, S. Kikuchi, Effects of multifunction cavitation treatment during chemical conversion coating on compounds formed on AZ31 magnesium alloy surface and their electrochemical characteristics, Surf. Coat. Technol, 511, 132308, 2025
2）M. Ijiri, T. Yoshimura, Effect of multifunction cavitation treatment on helical gear surface, J. Mater. Eng. Perform, 2025, (In press)
3）D. Z. Segu, P Hwang, Friction control by multi-shape textured surface under pin-on-disc test, Tribol Int, 91, pp. 111-117, 2025
4）M. Ranuša, L. Odehnal, O. Kucera, D. Necas, M. Hartl, I. Krupka, M. Vrbka, Effect of Surface Texturing on Friction and Lubrication of Ti6Al4V Biomaterials for Joint Implants, Tribol, Lett, 73, 2025
5）Y. Mao, W. Chen, Y. Li, Y. Dai, W. Guo, J. Zhang, Y. Wang, Z. Wang, L. Zheng, D. Li, N. Lin, Simulation and Experimental Study on Tribological Properties of Herringbone Texture on 42CrMo Bearing Alloy Steel Surface, J. Mater. Eng. Perform, 34, pp. 1364-1377, 2025
■A processing technique that utilizes a laser to generate micron-sized grooves on the aluminum alloy surface
■Masataka Ijiri
■Tokyo Metropolitan University Department of Mechanical Systems Engineering, Assistant professor
