利用微束等离子弧对灰铸铁表面进行扫描,使其表面形成厚度450～550μm的快速凝固薄层,研究发现薄层基体为细化的莱氏体组织,原灰铸铁基体上的片状石墨消失,取而代之的是弥散分布的球状石墨微粒.显微硬度分析证实微束等离子弧表面处理增强了灰铸铁的表面硬度,滑动磨损试验表明经微束等离子弧表面处理的试样的表面耐磨性得以显著提高.
参考文献
| [1] | J.C. Ferreira .A study of cast chilled iron processing technology and wear evaluation of hardened gray iron for automotive application[J].Journal of Materials Processing Technology,2002(1):94-101. |
| [2] | T.S. Srivatsan;T.S. Sudarshan .The influence of phosphorus on shrinkage porosity in cast irons[J].Materials Letters,1999(4):186-191. |
| [3] | 姜焕中.电弧焊与电渣焊[M].北京:机械工业出版社,1980 |
| [4] | YANM;ZHU W Z .SurfaceTreatmentof45SteelbyPlasma-ArcMelting[J].Surface and Coatings Technology,1997,91:183-192. |
| [5] | W. Luo .Effect of micro-plasma arc melting on the corrosion resistance of a 0Cr19Ni9 stainless steel SAW joint[J].Materials Letters,2002(5):290-295. |
| [6] | 罗伟,张孝彬.1Cr18Ni9Ti表层微束等离子弧重熔抗蚀性的研究[J].材料保护,1999(03):13-14. |
| [7] | Yan M. .An experimental study of the remelting of an Fe-C-Cr-Si-B overlay with a microbeam plasma arc[J].Surface & Coatings Technology,1998(1/2):132-139. |
| [8] | YANMZHUWZ .SurfaceRemeltingofNi-Cr-B-SiCladdingwithAMicro-BeamPlasmaArc[J].Surface and Coatings Technology,1997,92:157-163. |
| [9] | YANM;ZHU W Z .ANewApproachofSurfaceTreatment:RemeltingofMicro-BeamPlasmaArc[J].Journal of Materials Science Letters,1998,34:222-225. |
| [10] | UDINSKIKG.Engineering Materials: Properties and Selection[M].Virginia:Reston Publishing CompanyInc,1983:321-322. |
| [11] | 王笑天.金属材料学[M].北京:机械工业出版社,1986 |
| [12] | J. P. Tu;X. H. Jie;Z. Y. Mao;M. Matsumura .The effect of temperature on the unlubricated sliding wear of 5 CrNiMo steel against 40 MnB steel in the range 400-600℃[J].Tribology International,1998(7):347-353. |
| [13] | MEI J;XIAO P.Wear resistance of cast irons used in brake disc rotors[A].,1999:47-49. |
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%