Preparation and Heat Treatment of Ni60-WC/Cr12MoV Bimetallic Composite Materials

You Qing Cao; Yu Ting Lv; Peng Jang; Jin Fu Xu

doi:10.4028/www.scientific.net/MSF.749.366

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HomeMaterials Science ForumMaterials Science Forum Vol. 749Preparation and Heat Treatment of Ni60-WC/Cr12MoV...

Preparation and Heat Treatment of Ni60-WC/Cr12MoV Bimetallic Composite Materials

Abstract:

In present work, bimetallic composite materials (BCMs) were prepared by one-step sintering in box-furnace followed by quenching in salt furnace. The morphology and mechanical properties of the fabricated BCMs were characterized systematically. The results showed that Ni60-WC/Cr12MoV BCMs with a typical transition zone of ~480 μm could be successfully prepared by sintering at 1120 °C for 15min followed by furnace cooling to 400 °C and air cooling to ambient temperature. The resultant samples were heat treated by preheating at 860 °C, heating at 1020 °C, quenching at 520 °C, and tempering for two times at 200 °C for 2h. The average micro-hardness of the BCMs was measured to be of 869.34, 755.44~413.68, and 758.02 HV, which corresponded to the parts of Ni60-WC, transition zone and Cr12MoV, respectively. The interface binding strength of the BCMs was 234.22 MPa.

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Periodical:

Materials Science Forum (Volume 749)

Pages:

366-371

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.749.366

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Online since:

March 2013

Authors:

You Qing Cao, Yu Ting Lv, Peng Jang, Jin Fu Xu

Keywords:

Bimetallic Composite Materials, Binding Strength, Heat Treatment, Microhardness

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