Solid state Stellite6 coatings were deposited on steel substrate by friction surfacing and compared with Stellite6 cast rod and coatings deposited by gas tungsten arc and plasma transferred arc welding processes. Friction surfaced coatings exhibited finer and uniformly distributed carbides and were characterized by the absence of solidification structure and compositional homogeneity compared to cast rod, gas tungsten arc and plasma transferred coatings. Friction surfaced coating showed relatively higher hardness. X-ray diffraction of samples showed only face centered cubic Co peaks while cold worked coating showed hexagonally close packed Co also. © 2012 Elsevier Inc. All rights reserved.

Janaki Ram Gabbita Durga

Department of Materials Science and Metallurgical Engineering

K.P. Rao

R. Damodaram

H.K. Rafi

G.M. Reddy

R. Nagalakshmi

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IIT Hyderabad

Materials Characterization

Friction surfaced Stellite6 coatings

Journal	Materials Characterization
ISSN	10445803