放電表面処理によるW皮膜に関する研究

• 鷲見 信行

  三菱電機 (株)

• 寺本 浩行

  三菱電機 (株)

• 中野 善和

  三菱電機 (株)

• 後藤 昭弘

  静岡理工科大学

書誌事項

タイトル別名

• Study of the W layer by electrical discharge coating

抄録

A tungsten (W) layer whose thickness was tens of micrometers or more was formed by electrical discharge coating using a W electrode which was made from the semi-sintered powder of pure W. The thickness of the W layer was 0.28 times the electrode wear length which was set up as the coating conditions. The density of the W layer was about 12.3×10³kg/m³. Many solidified materials whose size was about 10 to 20 micrometers and many voids were observed in the W layer. The Vickers hardness test using the load of 9.8N showed that the hardness of the W layer was 281HV₁. The diagonal length of the indentation of the test was several times as large as the solidified material in the W layer. The hardness of the W layer was lower than that of pure W metal.<br>After electron beam irradiating, the densification of the W layer was observed. The thickness of the W layer was contracted from 0.58mm to 0.37mm and the hardness of the layer was improved to 1788HV₁.

収録刊行物

• 精密工学会誌

  精密工学会誌 80 (1), 107-111, 2014

  公益社団法人 精密工学会

キーワード

• electrical discharge coating
• tungsten layer
• electron beam
• Vickers hardness
• densification

詳細情報

• CRID: 1390001204829158272
• NII論文ID: 130003385046
• DOI: 10.2493/jjspe.80.107
• ISSN: 1882675X
• ISSN: 09120289
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可