Surface Smoothing and Surface Modification of Maraging Steel by Large-area EB Irradiation

Shun Watanabe, Togo Shinonaga, Atsushi Yamaguchi, Akira Okada

Research output: Contribution to conferencePaperpeer-review

Abstract

Maraging steels have been typically applied to precise metal mold since they have many excellent properties, such as high strength and toughness. In general, the metal mold has been finished by hand lapping, although this process takes a long time. Moreover, maraging steels are inferior to other mold steels in some surface functions. In this study, efficient surface smoothing and surface modification of maraging steel are proposed by large-area electron beam (EB) irradiation. The experimental results show that surface roughness decreases to approximately 1.0µm!z in a few minutes, and Mo-rich layer is formed in re-solidified layer of EB irradiated surface. Moreover, water repellency is improved by the EB irradiation.

Original languageEnglish
Pages323-324
Number of pages2
Publication statusPublished - 2021
Event10th International Conference on Leading Edge Manufacturing Technologies in 21st Century, LEM 2021 - Virtual, Online
Duration: Nov 14 2021Nov 18 2021

Conference

Conference10th International Conference on Leading Edge Manufacturing Technologies in 21st Century, LEM 2021
CityVirtual, Online
Period11/14/2111/18/21

Keywords

  • Large-area EB irradiation
  • Maraging steel
  • Surface modification
  • Surface smoothing

ASJC Scopus subject areas

  • Artificial Intelligence
  • Industrial and Manufacturing Engineering
  • Electronic, Optical and Magnetic Materials

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