• Laser & Optoelectronics Progress
  • Vol. 57, Issue 21, 211406 (2020)
Zhao Haiyang, Li Xinmei, and Lu Caibin
Author Affiliations
  • 新疆大学机械工程学院, 新疆 乌鲁木齐 830047
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    DOI: 10.3788/LOP57.211406 Cite this Article Set citation alerts
    Zhao Haiyang, Li Xinmei, Lu Caibin. Microstructure and Properties of Laser Cladding Ni-Al/Al2O3-13%TiO2 Cermet Coating[J]. Laser & Optoelectronics Progress, 2020, 57(21): 211406 Copy Citation Text show less

    Abstract

    In order to further study the hardness and wear resistance of laser cladding Ni-Al/Al2O3-13%TiO2 cermet coating, a YLS-2000 fiber laser was used to prepare Ni-Al coating and Ni-Al/Al2O3-13%TiO2 cermet coating on a 45 steel substrate .The metallographic microscope, scanning electron microscope, electronic differential system energy spectrum analysis, X-ray diffraction and other systems were used to study the microstructure, phase composition, and element distribution of the coating. HXD-1000TB Vickers hardness tester was used to measure the micro-hardness distribution of the coating section, and the wear test was performed by using the M-2000 abrasion tester. The Ni-Al / Al2O3-13%TiO2 cermet coating has good macro-forming quality and no cracks. The maximum cross-section hardness of the coating is about twice that of the Ni-Al coating and about four times that of the substrate. Its wear volume is about 1/8 of that of the 45 steel substrate, which is 30% lower than that of Ni-Al coating. The structure of Ni-Al/Al2O3-13%TiO2 cermet coating is more uniform and dense, and its hardness and wear resistance are significantly improved compared to Ni-Al coating and matrix material. This research has certain reference significance for the overall performance analysis of cermet materials.
    Zhao Haiyang, Li Xinmei, Lu Caibin. Microstructure and Properties of Laser Cladding Ni-Al/Al2O3-13%TiO2 Cermet Coating[J]. Laser & Optoelectronics Progress, 2020, 57(21): 211406
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