| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a carburizing member enabling to improve wear resistance without accompanying massive cost increase, steel for the carburizing member being a semi-finished product thereof, and a method for producing the carburizing member. <P>SOLUTION: This carburizing member contains the chemical components, by mass, of 0.10-0.30% C, 0.50-2.00% Si, 0.30-1.50% Mn, 0.035% or less P, 0.035% or less S, 1.35-3.00% Cr, 0.020-0.060% Al, and 0.0080-0.0250% N, and the balance Fe and inevitable impurities. The sliding surface has no carburizing abnormal layer, the surface carbon concentration is in the range of 0.7-0.9 mass%, and the troostite areal rate in the tissue from the top surface to 50 μm depth is 1% or less. Carbon potential at the carburizing period of carburization process is 1.3% or more. <P>COPYRIGHT: (C)2013,JPO&INPIT |
