低融点Ni合金粉を混合したニッケルおよびSUS系粉による鋳鉄の表面被覆層の性質 Properties of Surface Coated Iron Castings by Ni and SUS Series Powder Mixed with Low Melting Point Ni Alloy Powders
The coating on iron castings of thin section (10mm in thickness) was prepared using mixture of Ni and SUS series alloy powders mixed with low melting point powder (Ni-P or Ni-Cr-P alloy powder) as the coating powder on the mold. Several properties of the coated iron castings obtained were tested. The main conclusions drawn were : (1) The best coating layer was obtained by mixed Ni / (Ni-P) = 50/50 powder. (2) The coated iron castings obtained had soft surface layer (100∼200 HV1) containing 10∼20%Ni and therefore good corrosion resistance to spraying of 5%NaCl solution, in comparison with uncoated cast iron. (3) Formation of hard martensitic phase were resulted in the interface of the coating layer and the matrix because of melting of Ni in coating powder to the matrix, which had no influence on spheroidizing of the graphite.
- 鋳造工学 = Journal of Japan Foundry Engineering Society
鋳造工学 = Journal of Japan Foundry Engineering Society 69(8), 670-674, 1997-08
Japan Foundry Engineering Society