Paper Title:
Microstructure and Properties of Fe/Al2O3 Gradient Coatings on Steel Substrate
  Abstract

The composites of Fe/Al2O3 gradient coatings on steel substrate were prepared by spraying and sol-gel method, and the microstructure and performances of the composites were analyzed. The results show that the adhesion strength of Fe/Al2O3 gradient coatings with FeAlNi transitional layers reaches 25.3MPa when the sintering temperature is 1220°C, and the surface hardness of coatings is four times higher than that of steel substrate. The coatings are mainly composed of α-Al2O3, AlFeO3 and NiFe2O4. There is no obvious hole or macro-interface, while some organization similar to the branch appears in the coatings. The bonding of Fe/Al2O3 gradient coatings and steel substrate mainly depends on adsorption, diffusion and chemical combination.

  Info
Periodical
Advanced Materials Research (Volumes 150-151)
Edited by
Jinglong Bu, Zhengyi Jiang and Sihai Jiao
Pages
1325-1329
DOI
10.4028/www.scientific.net/AMR.150-151.1325
Citation
J. F. Liu, Z. Wang, Y. S. Ding, G. P. Shi, "Microstructure and Properties of Fe/Al2O3 Gradient Coatings on Steel Substrate", Advanced Materials Research, Vols. 150-151, pp. 1325-1329, 2011
Online since
October 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: G. Deniz, Saduman Sen, Ugur Sen
Abstract:In this work, some surface properties of AISI M2 steel were improved by a thermoreactive deposition process. Gas nitriding was realized on...
219
Authors: Bong Hwan Kim, Sang Mok Lee
Abstract:Al-Cu-Fe-B quasicrystalline and Mo coatings were obtained on the mild steel and brass substrates by thermal spraying routes for the purpose...
715
Authors: Ling Zhong Du, Wei Gang Zhang, Deng Jun Zhang, Bao Hou Li
Abstract:In order to improve the surface properties of the machine parts, the NiAl cladding Cr3C2 powder were flame and plasma sprayed. The...
15
Authors: San Ming Du, Yong Ping Niu, Yong Zhen Zhang
Chapter 5: Coatings and Surface Engineering
Abstract:In the present study, 20 Wt. % ZrO2-Al2O3-17 wt.% TiO2 powders were sprayed using a plasma-spray...
420
Authors: Ren Guo Song, Pu Hong Tang, Chao Wang, Guo Lu
Chapter 2: Surface Engineering/Coatings
Abstract:Al2O3 and Al2O3-40wt.%TiO2 ceramic coatings on H13 hot-worked die steel have been...
235