K4169合金-陶瓷型壳间界面传热系数研究  

Interfacial Heat Transfer Coefficient between the K4169 Alloy and Ceramic Mold Shell

作　　者：马岚波 税国彦 关洋 孙逊 苗治全 成京昌 Ma Lanbo;Shui Guoyan;Guan Yang;Sun Xun;Miao Zhiquan;Cheng Jingchang(Shenyang Research Institute of Foundry Co.,Ltd.)

机构地区：[1]沈阳铸造研究所有限公司,沈阳110022

出　　处：《特种铸造及有色合金》2021年第8期1048-1052,共5页Special Casting & Nonferrous Alloys

摘　　要：界面传热系数(IHTC)是铸造数值模拟前处理时需要设置的边界条件之一,对铸件凝固过程温度场计算精度有重要影响。采用ProCAST软件反算模块和试样不同壁厚处实测温度数据反算求得K4169高温合金熔模铸造试样-陶瓷型壳间的界面传热系数,并分别用于试样熔模铸造数值模拟,结果表明,计算温度与实测温度误差均在3%以内。The interfacial heat transfer coefficient(IHTC)is one of the boundary condition for the preprocess of casting numerical simulation,which has an important effect on the calculation accuracy of the temperature field during solidification process.The IHTCs between the K4169 alloy and ceramic shell mold were obtained through ProCAST inverse module and the temperature measured from various positions with different thicknesses of the specimens,which was applied to the numerical simulation.The results indicate that the error between calculated and measured temperature is within 3%.

关 键 词：K1469高温合金 熔模铸造 界面传热系数 PROCAST软件 反算 

分 类 号：TG249.5[机械工程—精密仪器及机械] TG146.15[金属学及工艺—铸造]