水轮机过流部件Mo_(2)FeB_(2)金属陶瓷覆层制备及组织性能研究  

Study on the Microstructures and Mechanical Properties of Mo_(2)FeB_(2)-based Cermets Coating on Hydraulic Turbine Overflow Components

作　　者：李景 侯世璞[1,2,3] 石礼金 马宽[4] 王永哲 唐洪奎 瞿宗宏 李少强 赖运金 王庆相 杨佳深 LI Jing;HOU Shipu;SHI Lijin;MA Kuan;WANG Yongzhe;TANG Hongkui;QU Zonghong;LI Shaoqiang;LAI Yunjin;WANG Qingxiang;YANG Jiashen(State Key Laboratory of Hydro-Power Equipment,Harbin 150040,China;Harbin Electric Machinery Co.,Ltd.,Harbin 150040,China;Harbin Institute of Large Electrical Machinery Co.,Ltd.,Harbin 150040,China;Xi'an Sino-Euro Materials Technology Co.,Ltd.,Xi'an 710018,China)

机构地区：[1]水力发电设备国家重点实验室,哈尔滨150040 [2]哈尔滨电机厂有限责任公司,哈尔滨150000 [3]哈尔滨大电机研究所有限公司,哈尔滨150040 [4]西安欧中材料科技股份有限公司,西安710018

出　　处：《大电机技术》2024年第5期66-70,共5页Large Electric Machine and Hydraulic Turbine

基　　金：水力发电设备国家重点实验室开放课题(2023YFB3408405);陕西省重点研发计划(2023-YBGY-462)

摘　　要：本文通过1200℃热等静压工艺在水轮机过流部件06Cr13Ni4Mo钢表面制备Mo_(2)FeB_(2)基金属陶瓷覆层,采用OM、SEM和EDS对金属陶瓷覆层的组织及其与基体的冶金结合进行表征,采用硬度仪检测覆层的显微维氏硬度。结果表明:Mo_(2)FeB_(2)基金属陶瓷覆层组织均匀,与钢基体完全融合,微观组织由硬质相和基体相组成,硬质相主要呈等轴块状和少量长条状,均匀分布于基体中;覆层组织的显微维氏硬度为1180 HV1。热等静压后不锈钢基体的强度、硬度降低,塑韧性提高。In this paper,Mo2FeB2-based cermets coating is prepared on the surface of 06Cr13Ni4Mo steel in the turbine overflow component by 1200℃hot isostatic pressing process,the microstructure of the metal-ceramic coating layer and its metallurgical bonding with the substrate are characterized by OM,SEM and EDS,and the Vickers hardness of the coating is detected by hardness tester.The results show that the Mo2FeB2-based cermets coating is homogeneous,and steel matrix completely fused,microstructure by the hard phase and matrix phase composition,hard phase is mainly block and a small amount of long stripes,uniform distribution in the matrix;coating microstructure of the Vickers hardness of 1180 HV1.The strength and hardness of the stainless steel matrix is reduced and the plasticity is increased after hot isostatic pressing.

关 键 词：水轮机过流部件 热等静压 Mo_(2)FeB_(2)基金属陶瓷 组织性能 

分 类 号：TK730.5[交通运输工程—轮机工程]