齐慧滨, 马铁军, 何业东, 王德仁, 朱日彰. HEDP表面处理对Ni3Al氧化行为的影响[J]. 工程科学学报, 2000, 22(4): 347-349. DOI: 10.13374/j.issn1001-053x.2000.04.048
引用本文: 齐慧滨, 马铁军, 何业东, 王德仁, 朱日彰. HEDP表面处理对Ni3Al氧化行为的影响[J]. 工程科学学报, 2000, 22(4): 347-349. DOI: 10.13374/j.issn1001-053x.2000.04.048
QI Huibin, MA Tiejun, HE Yedong, WANG Deren, ZHU Rizhang. Effect of HEDP Surface Treatment on the Oxidation Behaviour of Ni3Al[J]. Chinese Journal of Engineering, 2000, 22(4): 347-349. DOI: 10.13374/j.issn1001-053x.2000.04.048
Citation: QI Huibin, MA Tiejun, HE Yedong, WANG Deren, ZHU Rizhang. Effect of HEDP Surface Treatment on the Oxidation Behaviour of Ni3Al[J]. Chinese Journal of Engineering, 2000, 22(4): 347-349. DOI: 10.13374/j.issn1001-053x.2000.04.048

HEDP表面处理对Ni3Al氧化行为的影响

Effect of HEDP Surface Treatment on the Oxidation Behaviour of Ni3Al

  • 摘要: 利用高能量密度等离子体(HEDP)对金属间化合物Ni3Al进行了表面处理,在合金表面获得了纳米级微晶层.该微晶层可以通过增加Al2O3优先形核位置和提高Al的向外扩散促进Ni3Al氧化时形成表面Al2O3,消除了生长速度较快的NiO相.

     

    Abstract: Surface treatment to the Ni3Al intermetallic compound was conducted by high energy density plasma and nanometer micro-crystalline layers were developed on the alloy surface.Formation of protective Al2O3, scales on the alloy surface was promoted by increasing the nucleaton sites and enhancing the outward ditheion of Al in the micro-crystalline structure. The fast growing phase NiO was eliminated in the oxide scales.

     

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