Paper Title:
Effect of High Energy Milling Parameters on Nanostructured Cr3C2-Ni20Cr Powder Characteristics
  Abstract

Cr3C2-NiCr coatings have been used for corrosion and wear resistant applications. In the last decade, thermal sprayed coatings using nanostructured feed stock of other materials has exhibited higher hardness, strength and corrosion resistance. Hence, it is anticipated that nanostructured Cr3C2-NiCr coatings will also exhibit these properties and therefore posses improved performance characteristics. Preparation of nanostructured feed stock powders is the first step in the synthesis of nanostructured coatings and mechanical milling is an effective process to obtain the powders. Preliminary studies in which commercial Cr3C2-NiCr powders were milled in hexane and gaseous nitrogen revealed that particle and crystallite size were significantly smaller in powders milled in nitrogen. This paper presents the effect of hexane content and milling parameters on Cr3C2-Ni20Cr powder characteristics. Use of just sufficient hexane as the milling media reduced significantly the particle and crystallite sizes.

  Info
Periodical
Materials Science Forum (Volumes 591-593)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
282-288
DOI
10.4028/www.scientific.net/MSF.591-593.282
Citation
C.A. Cunha, A.G.F. Padial, N. B. de Lima, J.R. Martinelli, O. V. Correa, L. V. Ramanathan, "Effect of High Energy Milling Parameters on Nanostructured Cr3C2-Ni20Cr Powder Characteristics", Materials Science Forum, Vols. 591-593, pp. 282-288, 2008
Online since
August 2008
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