Paper Title:
An Experimental Study on the Properties of Fe-Based Amorphous Composite Coatings Prepared by Different Processes
  Abstract

Fe-based amorphous composite coatings were deposited on the surface of ASTM-1020 steel plate by different technologies: arc spraying, laser remelting, TIG remelting (with and without water cooling). The microstructure, phase structure and micro-hardness were characterized by using a combination of SEM, XRD and Vickers hardness tester. It shows that the coating prepared by arc spraying presents typical lamellar structure and poor adherence to the substrate. After the remelting treatment, the coating quality is significantly improved by decreasing structure defects such as cracks and pores; the interface shows the metallurgical bonding. The dendritic crystals could be obtained within all the remelted coatings with different appearances. The microstructures of TIG remelted coatings show much more regular and have obvious orientation, which cannot be seen in laser remelted coating. However, the average grain size of the laser remelted coating is much smaller than that of TIG remelted coatings. The micro-hardness values of all of the deposited coatings are much higher than that of the substrate, and the coating prepared by laser remelting shows the highest hardness.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
2137-2141
DOI
10.4028/www.scientific.net/AMR.239-242.2137
Citation
D. J. Xie, Z. D. Liu, W. Q. Hu, Y. T. Wang, "An Experimental Study on the Properties of Fe-Based Amorphous Composite Coatings Prepared by Different Processes", Advanced Materials Research, Vols. 239-242, pp. 2137-2141, 2011
Online since
May 2011
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$32.00
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