| 摘要 |
<P>PROBLEM TO BE SOLVED: To propose an iron-based material for a mechanical structure, which has both cold workability and final component strength, and furthermore can provide a component excellent in strength even under a high temperature use environment without necessarily containing alloy elements at a high concentration in the steel. <P>SOLUTION: The iron-based material for a mechanical structure has a component composition containing 0.1 mass% or more to 1.5 mass% or less C, and the remainder Fe with inevitable impurities, and has a hard phase formed by nitriding treatment as at least a part of steel structure. The hard phase contains (3- [%C]) at% or more to (8- [%C]) at% or less N and has a hardness of HV 650 or more. <P>COPYRIGHT: (C)2013,JPO&INPIT |
