Structural color of metallic glass through picosecond laser

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外文摘要：The alteration in surface color of metallic glasses(MGs)holds great significance in the context of microstructure design and commercial utility.It is essential to accurately describe the structures that are formed during the laser and color separation processes in order to develop practical laser coloring applications.Due to the high oxidation sensitivity of La-based metallic glass,it can broaden the color range but make it more complex.Structure coloring by laser processing on the surface of La-based metallic glass can be conducted after thermoplastic forming.It is particularly important to clarify the role of structure and composition in the surface coloring process.The aim is to study the relationship between amorphous surface structural color,surface geometry,and oxide formation by laser processing in metallic glasses.The findings revealed that the periodic structure primarily determines the surface color at laser energy densities below 1.0 J/mm2.In contrast,the surface color predominantly depends on the proportion of oxides that are formed when energy densities exceed 1.0 J/mm2.Consequently,this study provides a novel concept for the fundamental investigation of laser coloring and establishes a new avenue for practical application.

外文关键词：

metallic glasspicosecond laserperiodic structureoxides

作者：

张月娥、童星、闫玉强、曹硕、柯海波、汪卫华

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作者单位：

College of Physics,Liaoning University,Shenyang 110036,China

Songshan Lake Materials Laboratory,Dongguan 523808,China

Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaGuangdong Major Project of Basic and Applied Basic Research,ChinaGuangdong Basic and Applied Basic Research,ChinaNational Key Research and Development Program of ChinaStrategic Priority Research Program of the Chinese Academy of Sciences

项目编号：

52071222524711802019B0303020102020B15151300072021YFA0716302XDB30000000

出版年：

2024

DOI：

10.1088/1674-1056/ad7672

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(10)