论文部分内容阅读
研究添加镍元素对低合金高强H型Q345钢组织和性能的影响,讨论了未加镍和加镍对Q345钢力学性能、夹杂物、物相和断口形貌的影响。结果表明,添加0.4%镍后,Q345钢力学性能和塑性均提高,不同温度下冲击功增大,断裂韧性提高;添加0.4%镍对Q345钢夹杂物影响较小,但使α-Fe晶格常数比未加镍时的进一步增大,衍射峰向左偏移量加大。
The effects of nickel addition on the microstructure and properties of low alloy high strength Q345 steel were investigated. The effects of nickel addition and nickel addition on the mechanical properties, inclusions, phases and fracture morphology of Q345 steel were discussed. The results show that the mechanical properties and ductility of Q345 steel increase with the addition of 0.4% Ni, and the impact energy increases at different temperatures and the fracture toughness increases. However, the addition of 0.4% Ni has little effect on the inclusions of Q345 steel, When the constant is higher than that without nickel, the shift of the diffraction peak to the left increases.