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| Preparation and characterization of diffusion alloy powder |
| LI Rui1，XU Jun2，LI Hong-xia2 |
| 1Ordos Vocational College,Ordos 017000,China，2University of Science and Technology Liaoning, Anshan 114000,China |
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Abstract In this paper, water atomized iron powder (FSY200.3) produced by Anshan Iron and Steel Powder Plant is used as raw material, ammonium molybdate, copper acetate and nickel acetate as coating agent, and the required metal is evenly diffused on the surface of water atomized iron powder by water immersion-hydrogen reduction method. The detailed process of preparing iron powder containing coated metal was investigated and the optimum technological conditions for the production of Fe-Mo-Ni-Cu alloy powder were determined. The reduced alloy powders were characterized by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The content of each element in alloy powder was determined by spectrophotometer. The bulk density, fluidity, compressibility and hydrogen loss of the reduced alloy powder were measured. The results show that all the technological parameters of the alloy powder prepared by water immersion and hydrogen reduction can meet the requirements. The hardness and tensile strength of the alloy powders (HJ) were measured by adding carbon powders with different mass fractions, and compared with those of the alloy powders (FSY-01K) prepared under the same conditions. The hardness and tensile strength of the alloy powders (HJ) prepared by the traditional method were higher than those of the alloy powders prepared by the traditional method.
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Received: 23 April 2019
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2019, Vol. 29 
