3379BA1汽轮机叶片钢的热处理工艺优化

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采用正交试验方法研究了3379BA1汽轮机叶片钢热处理工艺与力学性能之间的关系.结果表明:影响试验钢力学性能的因素先后顺序为回火温度、淬火温度、回火时间、淬火时间,得出了最优热处理工艺参数为1050℃淬火(保温60 min,油冷)后在700℃回火(保温120 min,空冷).通过试验验证,经最优热处理工艺处理后试验钢可以满足各项性能要求,较工艺优化前冲击吸收能量平均值提升约10 J,屈强比达87.3%.
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