✦ LIBER ✦

Structure and wear-resistance of an Fe-VC surface composite produced in situ

✍ Scribed by Yisan Wang; Fengchun Li; Guangting Zeng; Daoli Feng

Publisher: Elsevier Science
Year: 1999
Weight: 505 KB
Volume: 20
Category: Article
ISSN: 0261-3069
DOI: 10.1016/s0261-3069(98)00033-8

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✦ Synopsis

An iron base surface composite, reinforced with VC particles, with a thickness of 3᎐4 mm, consisting of Fe,Cr C and 7 3 graphites on a Martensite matrix, was produced in situ on a surface of cast steel by means of metal-coated casting. The structure and wear-resistance of the Fe-VC surface composite were studied with the help of a SEM, electron probe and XRD. From the outside in, the quantity of VC particles and the concentration of alloy elements took on a gradient distribution and decreased gradually. In the subsurface layer of the surface composite, the volume fraction of VC particles was up to 39.5% with particle sizes in the range 1᎐3 m. The Fe-VC surface composite possesses great wear-resistance under the condition of dry slipping with a heavy load.

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