论文部分内容阅读
根据Inconel 690合金热加工图,用数值模拟方法确定了Inconel 690合金管材挤压的加热温度T=1200℃和应变速率及与之相应的挤压速度V=80mm.s-1。依据核电装备对Inconel 690合金管材组织和力学性能方面的技术要求,通过对棒材进行挤压和固溶处理以及拉伸实验,确定了适合的挤压比为6和10。考虑到液压机最大压力为3000kN,选取挤压比8,经数值模拟得出最大挤压力为2360kN,符合液压机最大压力条件。
According to the hot working drawing of Inconel 690 alloy, the heating temperature T = 1200 ℃ and the strain rate and the corresponding extrusion speed V = 80mm.s-1 of Inconel 690 alloy pipe were determined by numerical simulation. According to the technical requirements of nuclear equipment on the microstructure and mechanical properties of Inconel 690 alloy pipe, suitable extrusion ratios of 6 and 10 were determined by extrusion and solution treatment of bar and tensile test. Taking into account the maximum pressure of the hydraulic press 3000kN, select the extrusion ratio of 8, the numerical simulation of the maximum extrusion pressure of 2360kN, in line with the maximum pressure of hydraulic conditions.