カスタマーログイン 0 ショッピングカート
ホーム 書籍 電子書籍 ジャーナル 参考文献と会報 著者、編集者、レビュー者 A-Z商品インデックス
Progress in Plasma Processing of Materials, 2003

ISBN 印刷: 978-1-56700-192-1

ISBN オンライン: 978-1-56700-447-2

INFLUENCE OF DC PLASMA PREHEATING ON OXIDE LAYERS FORMED BY FURNACE HEATING ON LOW CARBON STEEL SUBSTRATES AND RESULTING ADHESION/COHESION OF ALUMINA COATINGS

要約

In plasma spraying the preheating of low carbon steel substrates (X40) with a rough surface resulting from grit blasting, has received an increased interest because it promotes the adhesion and cohesion (A/C) of alumina coatings. Earlier works have reported the generation of a duplex Fe3O4/Fe2O3 layer after preheating by the d.c. plasma jet. Improved A/C values were obtained for an increase in Fe3O4 content in the oxide layer. Much improved adherence values were achieved with alumina spayed on Fel-xO layers. In this case, the Adhesion/cohesion values obtained on smooth substrate (Ra ~ 0.1 µm) were good (~ 40 MPa) and close to those obtained on rough ones (Ra ~ 5 µm). First the time evolution of the Fel-xO layer thickness and morphology produced in a controlled atmosphere furnace was studied. Then the influence of the plasma preheating of the wustite layers was studied by SEM, and XRD analyses. XRD analysis results indicated a slight variation in the oxide phases depending on the preheating cycles. Fe3O4 was found to increase when a decomposition of Fel-xO into Fe3O4 was observed.
ホーム Begell Digital Portal Begellデジタルライブラリー ジャーナル 書籍 電子書籍 参考文献と会報 著者、編集者、レビュー者 A-Z商品インデックス 価格及び購読のポリシー Begell Houseの概要 連絡先 Language English 中文 Русский 日本語 Português Deutsch Français Español