铸造工艺参数对高温合金法兰晶粒度影响
Aerospace Manufacturing Technology(2014)
Abstract
采用新型细晶铸造技术,通过合理控制浇注温度和模壳预热温度,研究了铸造工艺对K4202高温合金法兰晶粒度的影响。结果表明,浇注温度1335~1345℃,浇注速度18~25kg/s,模壳预热温度1080~1150℃时,新型细晶铸造技术制备的法兰铸件的微观晶粒度在ASTM4-ASTM6.5级,实现了全截面均匀细等轴晶。
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