王博,刘洋,邵建伟,彭新,袁福河. 一种爆炸喷涂NiCrAl 尺寸修复涂层的工艺研制[J]. 航空制造技术, 2023, 66(1/2): 67-73. WANG Bo, LIU Yang, SHAO Jianwei, PENG Xin, YUAN Fuhe. Process Development of D–Gun Sprayed NiCrAl Coating for Dimensional Build-Up[J]. Aeronautical Manufacturing Technology, 2023, 66(1/2): 67-73.
WANG Bo, LIU Yang, SHAO Jianwei, et al. Process Development of D–Gun Sprayed NiCrAl Coating for Dimensional Build-Up[J]. Aeronautical Manufacturing Technology, 2023, 66(1/2).
王博,刘洋,邵建伟,彭新,袁福河. 一种爆炸喷涂NiCrAl 尺寸修复涂层的工艺研制[J]. 航空制造技术, 2023, 66(1/2): 67-73. WANG Bo, LIU Yang, SHAO Jianwei, PENG Xin, YUAN Fuhe. Process Development of D–Gun Sprayed NiCrAl Coating for Dimensional Build-Up[J]. Aeronautical Manufacturing Technology, 2023, 66(1/2): 67-73. DOI: 10.16080/j.issn1671-833x.2023.01/02.067.
WANG Bo, LIU Yang, SHAO Jianwei, et al. Process Development of D–Gun Sprayed NiCrAl Coating for Dimensional Build-Up[J]. Aeronautical Manufacturing Technology, 2023, 66(1/2). DOI: 10.16080/j.issn1671-833x.2023.01/02.067.
and spray distance on microscopic structure and mechanical properties of D–gun sprayed NiCrAl coatings were investigated. The characterizations of microstructure of as-sprayed coatings were analyzed by SEM. The influence of four factors on the coating properties was studied by testing the porosity
microhardness and tensile bonding strength of the coating. The optimized process parameters of the D–gun sprayed NiCrAl coatings were particle size 13–45 μm
oxygenfuel ratio 1.25
flow rate of carrier N
2
20 L/min and spray distance 170 mm. An NiCrAl coating for dimensional build-up application with uniform
dense microstructure
high hardness and adhesive strength was achieved through the D–gun spray process optimization.