【摘要】 本文提出用模拟冷却的小试样测试机械性能的试验方法来确定4Cr5MoV1Si钢(H13钢)热锻模模块内层或心部韧性下降的幅度,并对其原因从组织因素方面作了探讨,初步评价了模拟冷却试验对钢种研制、选用、热处理工艺制定以及复合组织在热锻模上应用研究等方面的重要意义。更多还原

【Abstract】 This paper presented a new method to test the mechanical properties in smallsize samples by using the simulating cooling technique to determine the toughnesschanges of the outer and core parts of 4Cr5MoV1Si (H13) hot forging die teel.The nature of the toughness changes have been investigated on the basis of mic-rostructure. From the view of the development and selection of the hot forgingdie steels, as well as the formulation of the heattreatment and the applicationsof composite structure in these steels, the simulating cooling technique has beendiscussed.更多还原