wang zhong, mei xianxiu, wang cunxia, et al. Irradiation effect of high current pulsed electron beam on surface structure and mechanical properties of NiCoCrAlY[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
wang zhong, mei xianxiu, wang cunxia, et al. Irradiation effect of high current pulsed electron beam on surface structure and mechanical properties of NiCoCrAlY[J]. High Power Laser and Particle Beams, 2009, 21.
wang zhong, mei xianxiu, wang cunxia, et al. Irradiation effect of high current pulsed electron beam on surface structure and mechanical properties of NiCoCrAlY[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
wang zhong, mei xianxiu, wang cunxia, et al. Irradiation effect of high current pulsed electron beam on surface structure and mechanical properties of NiCoCrAlY[J]. High Power Laser and Particle Beams, 2009, 21.
DZ4 substrates were coated with NiCoCrAlY by plasma spray and subsequently treated by high current pulsed electron beams(HCPEB) of different parameters. The surface microstructure, phase structure and high temperature oxidation resistance were studied. It has been shown that as a result of the HCPEB treatment the loose and rough structure remelted and the surface became smooth. Smooth microregion, craters and cracks appeared on the surface. The γ′ phase manifolded and there was no visible thermal stress. The oxidation test at 900 ℃ for 100 h showed that a more compact and successive α-Al2O3 scale was formed on the surface of the samples after HCPEB irradiation, which improved the oxidation resistance of the NiCoCrAlY coatings obviously.
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