熔铸工艺对K465合金组织性能的影响  

Effects of Different Shell Mould Casting Processes on Structures and Mechanical Properties of K465 Alloy

作　　者：彭志江[1] 贾淑芹[2] 于颖[1] 邹建波[1] 

机构地区：[1]中航工业沈阳黎明航空发动机(集团)有限责任公司,辽宁沈阳110043 [2]沈阳铸造研究所,辽宁沈阳110022

出　　处：《铸造》2010年第6期563-567,共5页Foundry

摘　　要：采用普通壳型铸造,通过熔体高温过热处理和未经熔体处理,壳型表面填粗砂、填细砂,及型壳表面孕育处理等不同的热型浇注工艺,研究了K465合金固溶处理前后组织和性能的变化。研究结果表明:采用高温熔体处理、型壳表面处理、型壳填细砂的热型熔铸工艺能够使K465合金获得较好的综合力学性能,并达到技术指标的要求;该工艺方案可直接指导涡轮工作叶片的实际生产。Adopting shell mould casting process, and through melt superheating treatment, or melt superheating treatment plus filling coarse sand, filling fine sand as backing sand of heated shell mould as well as inoculation treatment for the mould surface or combination of several processes, the structures and mechanical properties of K465 alloy before and after solution treatment have been studied. Results show that using the combined process of melt superheating treatment＋ inoculation treatment for mould surface＋filling fine sand as backing sand, K465 alloy has better comprehensive mechanical properties.

关 键 词：熔铸工艺 K465合金 熔体处理 组织性能 

分 类 号：TG156.94[金属学及工艺—热处理]