Rapid Solidification of Steel Droplets in the Plasma-Rotating-Electrode-Process

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概要

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• The Plasma-Rotating-Electrode-Process (PREP) is based on the pulverization by rotation of meta bars in contact with a Ar/N<SUB>2</SUB> plasma arc. Due to the high centrifugal forces of the rapidly rotating bars, high nitrogen steel powders are produced with diameters in the range of 0.02 to 0.5 mm. The low diameters and the high centrifugal forces, as well as the high particle velocities, cause the steel droplets to cool down rapidly in the reactor chamber. Mathematical calculations show that cooling rates of up to 10<SUP>5</SUP> K/s are attained. It is demonstrated that the cooling rate of all powder particles and the structures produced can be predicted.

• 社団法人 日本鉄鋼協会の論文
• 1995-06-15

著者

• Feldhaus Stephan

  Department Of Steelmaking Institute Of Ferrous Metallurgy Rwth-aachen

• Gammal Tarek

  Department Of Steelmaking Institute Of Ferrous Metallurgy Rwth-aachen

• Wosch Erwin

  Department Of Steelmaking Institute Of Ferrous Metallurgy Rwth-aachen

関連論文

• High Nitrogen Steel Powder for the Production of Near Net Shape Parts
• Rapid Solidification of Steel Droplets in the Plasma-Rotating-Electrode-Process

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