【摘要】 采用不同的退火工艺、相同的淬火回火工艺,对Q235Ni0.1Zr0.1Y0.1新型低合金钢结构进行了热处理,并通过显微组织观察,力学性能和阻尼性能的测试与分析。结果表明:与460℃退火相比,600℃退火的力学性能和阻尼性能降低,抗拉强度、屈服强度和断后伸长率分别减小7.1%、12.2%、9.8%,频率为1 Hz时的阻尼性能减小71.4%;分级退火的抗拉强度、屈服强度和断后伸长率分别增加14.3%、13.4%、12.8%,频率为1 Hz时的阻尼性能增加321.4%。更多还原

【Abstract】 Different annealing process and the same quenching tempering process were used to execute the heat treatment for Q235Ni0.1Zr0.1Y0.1 new low alloy steel structure, and the microstructure of the steel structure was observed and the mechanical properties and damping performance were analyzed. The results show that, compared with 460 ℃ annealing,the mechanical properties and damping performance of the steel structure reduce after annealed at 600 ℃, the tensile strength, yield strength and break elongation is decreased by 7.1%, 12.2% and 9.8%, respectively. As the frequency of 1 Hz, the damping performance is decreased by 71.4%. After stepping-annealing, the tensile strength, yield strength and break elongation of the steel structure is increased by 14.3%, 13.4% and 12.8%, respectively. As the frequency of 1 Hz,the damping performance is increased by 321.4%.更多还原