表面技术2011，Vol.40Issue(3)：17-21,5.
Ni-Ti-Cr-C系熔覆层对电厂排粉机叶轮叶片的延寿研究
Study on Improving the Capability of Abrasion-resistance of the Mill Fan by Ni-Ti-Cr-C Compound Welding Surface
摘要
Abstract
With the row material of NiCr foil,Cr3C2 powder,Ti powder,C powder and by the method of TIG, the Ni-Ti-Cr-C compound welding surface was prepared and bonded on the 16 Mn steel. The phase structure, microscopic organization, component distribution and the distribtion of fracture surface microhardness were studied. The welding coating was studied by erosion wear test. With different temperature, angle of attack in the erosion experiments, the erosion capability of the Ni-Ti-Cr-C compound welding surface, 16Mn steel and high-chromium cast-iron ball were compared. The result shows that the compose tissue of Ni-Ti-Cr-C compound welding surface is composed by Ni-based sosoloid, TiC and Cr23C6 enhanced phase, and its hardness is beyond 1 900 HV. It is inferenced that welding surface and the base are metallurgical bonding. The erosion capability of Ni-Ti-Cr-C compound welding surface is better than primary material of the blade of mill fan, so that the Ni-Ti-Cr-C compound welding surface can improves the life of mill fan.关键词
Ni-Ti-Cr-C系熔覆层/冲蚀/氩(弧)熔覆/16Mn钢Key words
Ni-Ti-Cr-C compound welding surface/ erosion/ TIG/ 16Mn steel分类
矿业与冶金引用本文复制引用
马一民,缪谦,刘开..Ni-Ti-Cr-C系熔覆层对电厂排粉机叶轮叶片的延寿研究[J].表面技术,2011,40(3):17-21,5.
