レーザピーニングの各種構造用鋼への適用に関する基礎的検討

• 崎野 良比呂

  大阪大学 接合科学研究所

• 佐野 雄二

  東芝 電力・社会システム研究センター

• 金 裕哲

  大阪大学 接合科学研究所

書誌事項

タイトル別名

• A Preliminary Study of Applicability of Laser Peening to Structural Steels with Various Strength

抄録

Laser peening is an innovative surface enhancement technology to introduce a compressive residual stress on metallic materials. In this paper, residual stress, Vickers hardness and surface profile of four grades of structural steel were examined to clarify the applicability of laser peening. The results obtained are summarized as follows. 1) Laser peening conditions, which can generate large and deep compressive residual stress, were established for 400 to 780MPa grade steels. 2) Compressive residual stress becomes deeper with the increase of material strength, whereas the hardened layer becomes shallower in the same laser peening conditions. 3) The surface got dented by 10 to 30μm from the initial surface and the surface roughness (Ra) became 3.5 to 13μm after laser peening.

収録刊行物

• 鋼構造論文集

  鋼構造論文集 18 (69), 69_61-69_70, 2011

  社団法人 日本鋼構造協会

キーワード

• レーザピーニング
• 残留応力
• ビッカース硬さ
• 表面形状
• 構造用鋼

詳細情報

• CRID: 1390282680292439296
• NII論文ID: 130004955766
• DOI: 10.11273/jssc.18.69_61
• ISSN: 18840329
• ISSN: 18809928
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可