采用高频感应熔覆方法在Q235低碳钢基体上制备了不同含量的WC增强Ni60A合金复合涂层.利用SEM和XRD分析了涂层的显微组织和相结构,并进行了耐磨性试验.结果表明,复台涂层中主要由WC、W2C、Cr7C3、Cr23C6、Cr2B、Ni2B、Ni3Si及Ni3Fe等相组成,并与基体实现了冶金结合.在相同试验条件下,涂层的硬度和耐磨性随WC含量的增加而提高,加入WC涂层的相对耐磨性为Ni60A涂层的2-6倍,当WC加入量为50%时涂层的耐磨性最好,为Ni60A涂层的6.5倍.涂层的磨损机制主要为轻微的塑性切削和硬质相的脆性剥落.
参考文献
| [1] | WANG Hui;XIA Wei-ming;JIN Yuan-sheng .A study on abrasive resistance of Ni-based coatings with a WC hard phase[J].Wear,1996,195(1-2):47-52. |
| [2] | KIM Hwan-cheol;OH Dong-young;SHON ln-jin .Synthesis of WC and dense WC-xvol.%Co hard materials by high-frequency induction heated combustion method[J].International Journal of Refractory Metals and Hard Materials,2004,22(01):41-49. |
| [3] | Harsha S;Dwivedi DK;Agrawal A .Influence of WC addition in Co-Cr-W-Ni-C flame sprayed coatings on microstructure, microhardness and wear behaviour[J].Surface & Coatings Technology,2007(12):5766-5775. |
| [4] | Martin A.;Fernandez JE.;Vijande R.;Rodriguez J. .Sliding wear behaviour of plasma sprayed WC-NiCrBSi coatings at different temperatures[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2001(2):1017-1022. |
| [5] | Tobar MJ;Alvarez C;Amado JM;Rodiguez G;Yanez A .Morphology and characterization of laser clad composite NiCrBSi-WC coatings on stainless steel[J].Surface & Coatings Technology,2006(22/23):6313-6317. |
| [6] | Huang S W;Samandi M;Brsndt M .Abrasive wear perfonnarnce and microstructure of laser clad WC/Ni layers[J].Wear,2004,256(11-12):1095-1105. |
| [7] | Shan-Ping Lu;Oh-Yang Kwon;Yi Guo .Wear behavior of brazed WC/NiCrBSi(Co) composite coatings[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2003(5/6):421-428. |
| [8] | Matsubara Y;Kumagawa M;Sochi Y;Notomi A.Application of self-fused alloy coating by induction heating[A].Japan:Kobe,1995:1001-1004. |
| [9] | 韩桂泉,张增志,付跃文.高频感应熔涂NiCrBSi合金涂层的组织与性能研究[J].润滑与密封,2006(06):95-97,101. |
| [10] | 张增志,牛俊杰,付跃文.感应熔覆镍基合金粉末涂层工艺和性能研究[J].材料热处理学报,2004(02):31-34. |
| [11] | 张增志,韩桂泉,付跃文,沈立山.Study on GNi-WC25 Coating by High Frequency Induction Cladding[J].中国矿业大学学报(英文版),2002(02):158-162. |
| [12] | 吴新伟;曾晓雁;朱蓓蒂 等.镍基WC金属陶瓷激光熔覆涂层的熔化烧损规律[J].金属学报,1997,33(12):1282-1288. |
| [13] | KIM Hyung-jun;HWANG Soon-young;LEE Chang-hee et al.Assessment of wear performance of flame sprayed and fused Ni-based Comings[J].Surface and Coatings Technology,2003,172(2-3):262-269. |
| [14] | 庄鸿寿;E.罗格夏特.高温钎焊[M].北京:国防工业出版社,1989:25-51. |
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%