Carbide Type Influence on Tribological Properties of Hard Faced Steel Layer Part II- Experimental Results

In this paper is presented a preceding procedure that should be conducted in order to successfully regenerate damaged forging dies by the hard facing process. After the tool damage types identification, as well as their causes, we have chosen the procedure and the parameters of hard facing that we f...

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Bibliographic Details
Published in:Tribology in industry 2010, Vol.32 (3), p.3-12
Main Authors: Lazic, V, Milosavljevic, D, Aleksandrovic, S, Marinkovic, P, Bogdanovic, G, Nedeljkovic, B
Format: Article
Language:English
Subjects:
carbides
Dimensional analysis
Exploitation
filler material
forging dies
Friction
friction coefficient
hard facing
hardness
Manufacturing
Mechanical properties
Metal fatigue
microstructure
Oxidation
Steel
Temperature
Tribology
Working conditions
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Summary:In this paper is presented a preceding procedure that should be conducted in order to successfully regenerate damaged forging dies by the hard facing process. After the tool damage types identification, as well as their causes, we have chosen the procedure and the parameters of hard facing that we further corrected by conducting the test hard facings on models. Thus, we were able to relate the experimental results outputs with the repair technology, taking as a criterion the quality of the surface layers wear resistance such as friction coefficient and width of hard faced zone, hardness and its distribution in cross section, then microstructure of characteristic of hard faced zones, etc. This research points out significancy of tribological properties of certain types of carbides and their effects on metal matrix, in which carbides are embedded. Our tribological investigations have shown that the working life of the hard faced tool can be longer than that of the new tool.
ISSN:0354-8996
2217-7965