K4169高温合金壳体热控凝固工艺的数值模拟及优化  

Numerical Simulation and Process Optimization of Thermally Controlled Solidification of K4169 Superalloy Shell Casting

作　　者：彭艳锋[1] 王甲贺 国建花 刘贞露 李晓琳[1] 陈佳[1] 孟祥炜[1] 肖文丰[1] PENG Yanfeng WANG Jiahe GUO Jiardaua LIU Zhenlu LI Xiaolin CHEN Jia MENG Xiangwei XIAO Wenfeng(Capital Aerospace Machinery Company, Beijing 100076, China Tianjin Long March Launch Vehicle Manufacture Co., Ltd., Tianjin 300450, China)

机构地区：[1]首都航天机械公司,北京100076 [2]天津长征火箭有限公司,天津300450

出　　处：《铸造技术》2017年第4期893-897,共5页Foundry Technology

基　　金：航天科技集团重大工艺研究项目资助(ZDGY2015-02)

摘　　要：通过对K4169高温合金壳体铸件铸造工艺参数的数值模拟和工艺验证,确定了壳体铸件细晶铸造工艺参数,浇注的铸件内部疏松、气孔、夹杂等内部质量达到了ASTM E192 B级要求,细晶铸造附铸试棒的抗拉强度和屈服强度优于普通铸造,塑性稍低。By numerical simulation and casting test of K4169 supemlloy casting parameters, the process parameters of fine grain shell casting were achieved. The metallurgical quality of porosity, pore, impurity etc. of casting could reach B level of ASTM E192. Additive samples of fine grain casting exhibit excellent tensile and yield properties compared with common superalloy casting, but the plasticity decrease a little.

关 键 词：数值模拟 细晶铸造 内部质量 

分 类 号：TG132.3[一般工业技术—材料科学与工程]