Low-temperature sintering of FeCuCo based pre-alloyed powder for diamond bits

Delong Xie; Long Wan; Dongdong Song; Haiqing Qin; Xiaoyi Pan; Feng Lin; Xiaohu Fang

doi:10.1007/s11595-016-1449-x

Journal of Wuhan University of Technology Materials Science Edition ›› 2016, Vol. 31 ›› Issue (4) : 805 -810. DOI: 10.1007/s11595-016-1449-x

Advanced Materials

Low-temperature sintering of FeCuCo based pre-alloyed powder for diamond bits

Delong Xie ¹
, Long Wan ¹^,^{^b}
, Dongdong Song ¹
, Haiqing Qin ²^,³^,⁴
, Xiaoyi Pan ²^,³^,⁴
, Feng Lin ²^,³^,⁴
, Xiaohu Fang ²^,³^,⁴

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Abstract

We studied the effects of sintering temperature on FeCuCo based pre-alloyed powder for diamond bits. The FeCuCo composite was fabricated by co-precipitation method. With the addition of tungsten carbide (WC), sintering under different temperatures was investigated. Mechanical properties of the FeCuCo based matrix were systematically studied. The structure of the composite was evaluated by X-ray diffraction (XRD) and scanning electron microscope (SEM) was used to analyze the surface of the powder and matrix. The suitable sintering temperature was determined through differential scanning calorimeter (DSC). Micro drilling experiments were performed, and 820 °C was identified to be the ideal sintering temperature, at which the matrix shows the best mechanical properties and drilling performance.

Keywords

co-precipitation method / pre-alloyed powder / sintering / diamond bits

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Delong Xie, Long Wan, Dongdong Song, Haiqing Qin, Xiaoyi Pan, Feng Lin, Xiaohu Fang. Low-temperature sintering of FeCuCo based pre-alloyed powder for diamond bits. Journal of Wuhan University of Technology Materials Science Edition, 2016, 31(4): 805-810 DOI:10.1007/s11595-016-1449-x

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