熔炼方法对高温合金精密铸件荧光显示缺陷的影响  

Effects of Melting Methods on Fluorescence Penetrate Testing Indication of Superalloy Investment Castings

作　　者：税国彦 张乃千 史昆 郭新力 孙逊 苏贵桥 金磊 SHUI Guo-yan;ZHANG Nai-qian;SHI Kun;GUO Xing-li;SUN Xun;SU Gui-qiao;JIN Lei(Shenyang Research Institute of Foundry Co.,Ltd.,State Key Laboratory of Light Alloy Foundry Technology for High-End Equipment,Shenyang 110022,Liaoning,China;Shenyang Liming Aereo-Engine Co.,Ltd.,Shenyang 110043,Liaoning,China)

机构地区：[1]沈阳铸造研究所有限公司,高端装备轻合金铸造技术国家重点实验室,辽宁沈阳110022 [2]中国航发沈阳黎明航空发动机有限责任公司,辽宁沈阳110043

出　　处：《铸造》2022年第6期719-723,共5页Foundry

摘　　要：高温合金精密铸件荧光显示缺陷修复耗时长,是影响铸件的质量和工期主要原因之一。采用冷坩埚真空悬浮熔炼设备和真空感应熔铸设备成形了K536高温合金精密铸件。对铸件进行化学成分、X射线及荧光渗透检验,结果表明:采用冷坩埚真空悬浮熔炼工艺的铸件没有荧光显示缺陷,采用真空感应熔炼熔铸的铸件存在密集荧光显示缺陷。证明了采用冷坩埚真空悬浮熔炼工艺能够减少高温合金精密铸件荧光显示缺陷,降低铸件后处理工作量。The repairing of the fluorescence indication defects takes a long time in the production process of superalloy investment castings,which is one of the main factors affecting the quality and schedule of the castings.The K536 superalloy investment castings were made by cold crucible vacuum levitation melting equipment and vacuum induction melting and casting equipment,respectively,and the chemical composition analysis,the X-ray inspection and the fluorescence penetrant testing were carried out on these castings.The results showed that the castings obtained by the cold crucible vacuum levitation melting equipment had almost no fluorescent indication defects,but the castings manufactured by the vacuum induction melting and casting equipment had dense fluorescent display defects.It is proved applying the cold crucible vacuum levitation melting technology can reduce the fluorescent indication defects of the superalloy investment casting and post-treatment workload.

关 键 词：荧光渗透检测 K536高温合金 熔模铸造 冷坩埚真空悬浮熔炼 真空感应熔炼 

分 类 号：TG132.3[一般工业技术—材料科学与工程]