| 摘要 |
<p>PURPOSE:To obtain a corrosion resistant sprayed coating layer having high adhesive strength and causing no cracking by spraying a spraying material consisting of specified percentages of Ni and an Ni-P alloy contg. a specified amount of P on an iron-base alloy material to coat the material and by heat treating the coated material at a specified temp. CONSTITUTION:A spraying material consisting of 20-80wt% Ni-P alloy contg. 5-25wt% P and of 80-20wt% Ni or Ni-Cr alloy contg. 5-60wt% Cr is sprayed on an iron-base alloy material to coat the material B, Si, or C may be contained in the Ni-P alloy besides Cr, and Al, an Al-Si alloy or an Al-Y alloy may be added. The coated blank is heat treated at 600-1,000 deg.C.</p> |
