At different solution and aging temperatures, and in different aging time,T250 steel smelt with technologies of VIM+VAR was heat-treated.

• 在不同的固溶温度、时效温度和时效时间的条件下,对真空感应+真空自耗重熔冶炼的T250钢进行热处理,研究不同热处理制度对其性能的影响。