摘要
采用JX07和JX08焊条对汽轮机叶片热锻模具5CrNiMo钢进行堆焊修复试验,对堆焊试样的组织和力学性能进行分析。结果表明,采用JX08过渡和JX07盖面获得的堆焊接头,一方面保持了近表面的硬度,另一方面又保证了堆焊接头的结合强度,不仅仅可以修复裂纹和磨损,还能很大程度上提升热锻模具整体使用寿命。
The surfacing repairing experiments of hot-forging steel 5 CrNiMo of steam turbine blade were carried out with JX07 and JX08 electrode. The microstructure and mechanical properties of surfacing samples were analyzed. The results show that the surfacing joint using JX08 electrode as transition layer and JX07 as cover layer maintains the hardness near the surface on the one hand, and ensures the bonding strength on the other hand. It can not only repair the crack and abrasion, but also improve the service life of hot-forging die.
作者
翟大军
文仲波
侯勇
唐道磊
李艳丽
ZHAI Dajun;WEN Zhongbo;HOU Yong;TANG Daolei;LI Yanli(Engineering Laboratory of Aviation Materials Testing and Stamp Forging Technology in Sichuan Province,Deyang 618000,China;Department of Materials Engineering,Sichuan Engineering Technical Collage,Deyang 618000,China;Dongfang Turbine Co.,Ltd.,Deyang 618000,China)
出处
《热加工工艺》
CSCD
北大核心
2018年第17期81-84,共4页
Hot Working Technology
基金
四川省科技计划重点研发项目(2017GZ0145)
四川工程职业技术学院科研项目(YJ2017KJ-12)
关键词
5CrNiMo
堆焊
组织
力学性能
5CrNiMo
surfacing
microstrueture
mechanical properties
