| Title |
Development of a Sintered Co - Alloy Steel for Valve Seat Parts |
| Authors |
백응율(Eung Ryul Baik); 문인형(In Hyung Moon) |
| Abstract |
An investigation was carried out to develop the abrasion-and heat resistant P/M alloy steels for an application to valve seat of diesel engine. The alloy powder obtained by mixing the individual elemental powders was compacted and sintered by conventional P/M technique and the sintered specimen was subjected to the usual heat treatment for hardening. Under the optimal sintering-and heat treatment condition; (sintered at 1200℃ for 100 min., oil quenched from the austenitizing temperature of 850-900℃ and tempered at 550℃ for 60 min.) the ultimate tensile strength of the sintered alloy steel was more than 1300 N/㎟. It has also shown the appropriate hardness and elongation, as 40.5 HRC and 3%, respectively. |