Tribotests of Valve Seats Made of ADI and Q - Cryo Cast Iron with Spheroidal Graphite

Břetislav Skrbek; Jakub Mráz

doi:10.4028/p-43z866

Paper Titles

Surface Modification of Alumina Particles to Enhance Bonding Properties with Rubber and Resin in Grinding Tools
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Cluster Structure Control of Coatings by Electrochemical Coprecipitation of Metals to Obtain Target Technological Properties
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Hardening of Rail Vehicle Axles
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Tribotests of Valve Seats Made of ADI and Q - Cryo Cast Iron with Spheroidal Graphite
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Metallographic Evaluation of Ni-Cr Cold Spray Layers on the Tube
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Laser Surface Hardening of Graphite Cast Iron
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Additional Strengthening of “Screper” Jewelry Tool Using Friction
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Microstructure of Mo-La₂O₃ Composite Powder Prepared Using Two Different High Energy Ball Milling Systems
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Tribotests of Valve Seats Made of ADI and Q - Cryo Cast Iron with Spheroidal Graphite

Abstract:

In this paper, microstructural and tribological properties of valve seats made of ADI and Q – cryo cast iron with spheroidal graphite have been investigated in comparison to stellite 6. The studies have shown that the cheaper variant of cast iron thermally threated can have comparable properties suitable for valve seats usage in gas combustion engines. In the work the tribological test was performed and resulted into the course of friction coefficient of the tested samples and selected properties as the thickens of the valve seat or hardness and Young modulus after cast iron thermal treatment were measured.

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Periodical:

Solid State Phenomena (Volume 334)

Pages:

82-86

DOI:

https://doi.org/10.4028/p-43z866

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Online since:

July 2022

Authors:

Břetislav Skrbek*, Jakub Mráz

Keywords:

Heat Treatment, Piston Engines, Spheroidal Graphite Cast Iron, Valve Seats

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References

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