高速フレーム炎溶射皮膜の特性評価に関する研究　第２報　高速フレーム溶射ＭＣｒＡｌＹ合金皮膜の残留応力特性

• 伊藤 義康

  (株)東芝重電技術研究所

• 斉藤 正弘

  (株)東芝重電技術研究所

• 高橋 雅士

  (株)東芝重電技術研究所

書誌事項

タイトル別名

• Residual Stress Characteristics of High Velocity Oxygen-Fuel MCrAlY Coatings.
• コウソク フレーム ヨウシャ MCrAlY ゴウキン ヒマク ノ ザンリュウ

抄録

High velocity oxygen-fuel (HVOF) system in air has been established for producing the coatings that are extremely clean and dense. It is thought that the HVOF sprayed MCrAlY (M is Ni, Co or Fe) coatings can be applied to prevent oxidation and corrosion in the hot section of gas turbines. Also, it is well known that thicker coatings can be sprayed for improving the residual stress in comparison with any other thermal spraying system. However, the thermal and mechanical properties of HVOF coatings have not always been clarified.<br>In this paper, the thermal and mechanical properties of MCrAlY coatings were measured in both cases of as sprayed and heat treated coatings. From the results, it is confirmed that the thermal and mechanical properties of HVOF MCrAlY coatings could be improved by a diffusion heat treatment up to the level of vacuum plasma sprayed MCrAlY coatings. On the other hand, the experimental results suggest that the residual stress of HVOF coatings is decreased by the shot-peening effect in comparison with the vacuum plasma sprayed coatings.

収録刊行物

• 材料

  材料 46 (9), 1057-1063, 1997

  公益社団法人 日本材料学会

キーワード

• High velocity oxygen-fuel (HVOF) system
• MCrAlY coatings
• Young's modulus
• Poisson's ratio
• Thermal expansion coefficient
• Residual stress

詳細情報

• CRID: 1390001205391537280
• NII論文ID: 110002293404
• NII書誌ID: AN00096175
• DOI: 10.2472/jsms.46.1057
• COI: 1:CAS:528:DyaK2sXmsVCjtrs%3D
• ISSN: 18807488
• ISSN: 05145163
• ISSN: http://id.crossref.org/issn/05145163
• NDL書誌ID: 4302079
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4302079
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可