| 摘要 |
PROBLEM TO BE SOLVED: To provide Ni-radical building-up powder for hot working which has high bearing force, high durability, high ductility and low thermal expandability at high temperature and is excellent in resistance to thermal crack and a die for hot working which is composed of the same powder. SOLUTION: This powder is a Ni-radical building-up powder for dies used in hot working which consists of, by mass,≤0.1% C, 10-15% Cr, 8-15% Mo,≤5% W,≤15% Co, 1-5% Al, 1-5% Ti and the balance Ni with inevitable impurities. Further, the Ni-radical building-up powder for the dies used in hot working contains one or more kinds of≤0.5% Si,≤0.5% Mn,≤3% Nb and≤6% Ta in addition to the above composition. Furthermore, in the Ni-radical building up powder for the dies used in the hot working, additionally, S is suppressed to≤0.005%. The powder having those componential compositions is used for the die in the hot working. COPYRIGHT: (C)2006,JPO&NCIPI
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