Evaluation of Adhesions of DLC/CrN Multi-layered Coatings on Stainless Steel

DOI Web Site 4 Citations 11 References

Bibliographic Information

Other Title
  • ステンレス鋼基板上に成膜したＤＬＣ／ＣｒＮ多層膜の密着性評価
  • ステンレス コウ キバン ジョウ ニ セイマク シタ DLC CrN タソウ マク ノ ミッチャクセイ ヒョウカ

Search this article

Abstract

Adhesion of DLC/CrN multilayered coatings onto stainless steel was evaluated using three adhesion tests: the scratch test, HRC indentation test, and microindentation test. In the DLC/10 μmt-CrN/SUS304 sample, the critical load (Lc) by scratch test improved to 28 N. In a SUS304 substrate reinforced by sulphonitriding, it improved to 52 N.<br>The HRC indentation test revealed cracks and delamination of the DLC coating around the indentation hole. The force-depth (P−h) curves in the microindentation test showed a few discontinuous behaviors (pop-in) accompanying DLC delaminations. Cross-sectional images under the dent were obtained using FIB observation, showing that pop-ins occurred at the interface between DLC and the Cr-C gradient layer. In the DLC/2 μmt-CrN/SUS304 sample, no delamination of DLC was observed in the microindentation test, although DLC varied with plastic deformations of SUS304 substrate in the microindentation test, and DLC delaminations were observed at the DLC − Cr-C interface.

Journal

Citations (4)*help

See more

References(11)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top