| 摘要 |
A Roughly shaped material for induction hardened components including: a steel as a base metal including, as a chemical composition, by mass%, C: 0.35% to 0.6%, Si: 0.02% to 2.0%, Mn: 0.35% to 1.5%, Al: 0.001% to 0.5%, Cr: 0.05% to 2.0%, S: 0.0001% to 0.05%, N: 0.003% to 0.0120%, P: 0.03% or less, O: 0.0050% or less, an iron nitride layer having a thickness of 0.1 µm to 50 µm in a depth direction is formed at a surface, and a volume fraction of a ³' phase, which is a Fe nitride, in the iron nitride layer, is 80% or more. |
