Fe-based alloy for melt-solidification-shaping and metal powder

A metal powder for melt-solidification-shaping, consisting of:

• 0.05 mass %<C<0.25 mass %,
• 0.01 mass %<Si<2.0 mass %,
• 0.05 mass %<Mn<2.5 mass %,
• 2.5 mass %<Ni<9.0 mass %,
• 0.1 mass %<Cr<8.0 mass %,
• 0.005 mass %<N<0.200 mass %,
• Cu<3.0 mass %,
• Mo<2.0 mass %,
• V<0.1 mass %,
• Al<1.5 mass %,
• P<0.05 mass %,
• S<0.01 mass %,
• O<0.08 mass %,
• W<0.20 mass %,
• Ti<0.20 mass %,
• Co<0.05 mass %,
• Sn<0.05 mass %,
• Nb<0.05 mass %,
• Ta<0.05 mass %,
• Zr<0.05 mass %,
• B<0.01 mass %,
• Ca<0.01 mass %,
• Se<0.03 mass,
• Te<0.01 mass %,
• Bi<0.01 mass %,
• Pb<0.05 mass %,
• Mg<0.02 mass %, and
• REM<0.01 mass %, with the balance being Fe and unavoidable impurities,
• and having a Ms point of 50° C. or higher and 280° C. or lower, wherein the composition satisfies the following expression (1):
• 11.5<15C+Mn+0.5Cr+Ni<20 (1),
• in which C, Mn, Cr and Ni respectively represent the contents of C, Mn, Cr and Ni by mass %.