Abstract:  4 ~ 100 mm 17Mn plate damping steel plate (/% ： 0. 02C, 0. 08Si, 17.53Mn, 0.014P, 0. 002S, 0.005Als) was developed and produced by Ansteel, with properties of yield strength 311 -407 MPa, 15 〜100 mm plate -20 °C V-notch impact energy 113 ~ 144 J, the tensile strength of welded joint 651 ~654 MPa, and-20°C V-notch impact energy 66 〜84 J after welding. The microstructure of the 17Mn damping steel is residual austenite and e martensite, and its damping property is tested using a dynamic mechanical thermal analyzer. Under the condition of double cantilever strain scanning at 30°C and 50 Hz, the damping values of the different thickness damping steels are greater than 0.02. At 100 Hz, the damping values of damping steels of different thicknesses are all greater than 0.05, and the damping values are higher than those of traditional low-alloy structural steels Q235 and Q345 (0.008 and 0.010 ~0.013).

摘要： 鞍钢研制的 17Mn 阻尼钢(/% ：0.02C, 0.08Si, 17.53Mn, 0.014P, 0.002S, 0.005Als) 4 ~ 100 mm 板，其 屈服强度311 ~4O7 MPa,15~100 mm板-20°C. V型缺口冲击吸收能量113-144 J,焊接后焊接接头抗拉强度651 ~ 654 MPa,焊接后-20 °C V型缺口冲击吸收能量66~84JO 17Mn阻尼钢组织为残余奥氏体和e马氏体，使用动态机 械热分析仪检测其阻尼性能。在30 °C ,50 Hz双悬臂应变扫描条件下，不同厚度阻尼钢阻尼值均大于0.02；在100 Hz 下测试不同厚度阻尼钢阻尼值均大于0.05,阻尼值高于传统的低合金结构钢Q235、Q345(0.008和0.010 ~0.013)。