为提高Fe-Ni基涂层的高温性能,在Fe-Ni基合金粉末中添加La2O3和Ce2O3的混合物,对涂层的高温氧化行为和高温耐磨损性能进行研究.结果表明:稀土改性Fe-Ni基涂层组织细密、晶粒细小、形成稀土化合物LaNi4Si、Ce2Ni22C3以及硬质相Cr3Si;稀土改性Fe-Ni基涂层具有良好的高温抗氧化性能,在氧化初期,涂层质量迅速增加,氧化动力学曲线符合抛物线规律,在氧化后期,氧化动力学曲线符合直线规律,质量增加缓慢.高温抗氧化性能的提高和Cr3Si硬质相的弥散分布使涂层的高温耐磨性能得到显著的提高.
参考文献
| [1] | Hossein Bayani,Ehsan Saebnoori.Effect of rare earth elements addition on thermal fatigue behaviors of AZ91 magnesium alloy[J].稀土学报（英文版）,2009(02):255-258. |
| [2] | Zheng W.Y.C.;Fan P. .Effect of rare earth on oxidation resistance of iron base fluxing alloy spray-welding coating[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2000(1):65-68. |
| [3] | Plaza JL.;Mendez B.;Piqueras J.;Dieguez E.;Hidalgo P. .Polishing, chemical etching and thermal treatment effects on surface and electrical properties of Er and Nd-doped GaSb substrates[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2000(1/3):282-287. |
| [4] | Liu XB;Yu RL .Effects of La2O3 on microstructure and wear properties of laser clad gamma/Cr7C3/TiC composite coatings on TiAl intermatallic alloy[J].Materials Chemistry and Physics,2007(2/3):448-454. |
| [5] | SHARMA S P;DWIVEDI D K;JAIN P K .Effect of La2O3 addition on the microstructure,hardness and abrasive wear behavior of flame sprayed Ni based coatings[J].Wear,2009,267(5/8):853-859. |
| [6] | Zhao T.;Wang SX.;Zheng S.;Cai X. .Effect of CeO2 on microstructure and corrosive wear behavior of laser-cladded Ni/WC coating[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2000(1/2):128-132. |
| [7] | WU Chaofeng,MA Mingxing,LIU Wenjin,ZHONG Minlin,ZHANG hongjun,ZHANG Weiming.Laser cladding in-situ carbide particle reinforced Fe-based composite coatings with rare earth oxide addition[J].稀土学报（英文版）,2009(06):997-1002. |
| [8] | G. Xu;M. Kutsuna;Z. Liu .Characteristics of Ni-based coating layer formed by laser and plasma cladding processes[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1/2):63-72. |
| [9] | Reactive Plasma Cladding Of Tic/fe Cermet Coating Using Asphalt As A Carbonaceous Precursor[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2009(9):4921-4925. |
| [10] | Ma W;Fei QX;Pan WX;Wu CK .Investigation of laminar plasma remelting/cladding processing[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2006(10):3541-3546. |
| [11] | LIU Yuan-fu;LIU Xiu-bo;XU Xiang-yang;YANG Si-ze .Microstructure and dry sliding wear behavior of Fe2TiSi/y-Fe/Ti5Si3 composite coating fabricated by plasma transferred arc cladding process[J].Surface and Coatings Technology,2010,205(03):814-819. |
| [12] | Zhang LM;Liu BW;Yu HY;Sun DB .Rapidly solidified non-equilibrium microstructure and phase transformation of plasma cladding Fe-based alloy coating[J].Surface & Coatings Technology,2007(12):5931-5936. |
| [13] | Limin Zhang;Dongbai Sun;Hongying Yu .Effect of niobium on the microstructure and wear resistance of iron-based alloy coating produced by plasma cladding[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2008(1/2):57-61. |
| [14] | 卢金斌,弓金霞,梁存,张照军,张瑞杰,刘建军.Q235钢表面等离子熔覆碳化钨增强铁基合金层的组织和硬度[J].机械工程材料,2010(09):31-33. |
| [15] | 毕晓勤,杨仲磊,胡小丽.等离子熔覆Ni-Cr合金涂层的组织与性能研究[J].材料工程,2009(05):26-29. |
| [16] | 向永华,徐滨士,吕耀辉.基于等离子熔覆快速成形零件的组织与性能[J].焊接学报,2010(09):49-52. |
| [17] | ZHANG Li-min;SUN Dong-bai;YU Hong-ying .Characteristics of plasma cladding Fe-based alloy coating with rare earth metal elements[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2007,452/453:619-624. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%