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- W2387662207 abstract "The thick-walled ring samples were prepared by means of the remelting and centrifugal casting of waste composites.The surface layer of the sample is of recycled composite with a thickness of 10-15 mm and the core is Fe-C alloy matrix.Mechanical test reveals that the hardness values of up to HRC 55.8-63.3 can be achieved in the surface layer,and impact toughness values of up to 5.7-6.9 J/cm2 and compressive strength of up to 2 460-2 680 MPa in the core matrix,which meet the demands for the high speed hot-roll.With the increase of the rotating speed(780-920 r/min) of centrifugal machine,the overall hardness of sample and the compressive strength of core matrix increase,while the overall impact toughness somehow decreases.Microstructure analysis shows that the undissolved WC particles(WC)P are compacted and distributed uniformly in the recycled composites with a volume fraction of 54%-70%,and the volume fraction increases with the increase of the rotating speed.During the remelting process,the surface of the WCP has been partially dissolved by the Fe-C alloy melt,which lead to the alloying of the Fe-C matrix,and then some fine WC crystallites and web composite carbides containing Fe and W have been precipitated in the core Fe-C matrix during the solidification." @default.
- W2387662207 created "2016-06-24" @default.
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- W2387662207 date "2010-01-01" @default.
- W2387662207 modified "2023-09-23" @default.
- W2387662207 title "Mechanical Properties and Microstructures of WC_p/Fe-C Recycled Composites" @default.
- W2387662207 hasPublicationYear "2010" @default.
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