摘要
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 ℃ was identified to be the ideal sintering temperature,at which the matrix shows the best mechanical properties and drilling performance.
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 ℃ was identified to be the ideal sintering temperature,at which the matrix shows the best mechanical properties and drilling performance.
基金
Funded by the Special Fund for Research Institutes of the Ministry of Science and Technology of China(No.2013EG115007)
the General Program of Natural Science Fund of Guangxi province in China(No.2013GXNSFAA019320)
the Plan program of Scientific Research and Technical Development of Guangxi province in China(No.1348008-3)
the Program of Scientific Development of China Nonferrous Metal Mining(group)Co,Ltd(No.2013KJJH11)
the Plan program of Scientific Research and Technical Development of Guilin in China(Nos.20140104-4 and 20150105-1)
