淬回火工艺对马氏体不锈钢3Cr17Mo组织和力学性能的影响

Effect of Quenching-Tempering Process on Structure and Mechanical Properties of Martensite Stainless Steel 3Cr17Mo

试验研究了960～1140℃淬火、200～650℃回火工艺对成分（％）为0．39C，16．73Cr，1．07Mo，0．25V，0．09Cu的塑料模具用马氏体不锈钢3Cr17Mo组织和力学性能的影响。结果表明，3Cr17Mo钢的淬火组织为板条马氏体＋铁素体＋（Fe，Cr）23C6碳化物；经1000～1060℃淬火、260～300℃或550～600℃回火后。3Cr17Mo钢具有良好的综合力学性能。

The effect of process of quenching at 960 ～ 1 140 ℃and tempering at 200 ～ 650℃ on martensite stainless steel 3Cr17Mo - 0.39C, 16.73Cr, 1.07Mo, 0.25V, 0.09Cu for plastics mould has been tested and studied. The results showed that the structure of quenched steel 3Cr17Mo was lath martensite ＋ ferrite ＋ （Fe, Cr）23 C6 carbide and with quenching at 1 000～ 1 060 ℃ then tempering at 260 ～300 ℃ or 550 ～600℃ the steel had excellent comprehensive mechanical properties.