| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an iron-based material for machine structural use from which a machine component which is provided with both cold workability and final component strength and which is also excellent in strength properties in a high temperature use environment can be obtained without necessarily containing high concentration of C and an alloy element in steel. <P>SOLUTION: The iron-based material containing (8-[C]) to (11-[C]) at% of N in a part or entirety thereof, wherein [C] is a content of C (at%) in the material, and having a hard phase of Hv 700 or higher hardness is formed by nitriding an iron-based material containing 0.1-1.5 mass% of C and comprising the balance of Fe and unavoidable impurities. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
