在Ti-5621s合金表面采用激光熔覆制备了镍-铬-硅复合涂层,分析了涂层的显微组织,测试了涂层的硬度和摩擦学性能.结果表明:复合涂层中以Ti5Si3和Cr3Si为主的颗粒增强相弥散分布在β-Ti和γ-Ni两相固溶体中;涂层的硬度较基体有显著的提高;由于金属硅化物Ti5Si3和Cr3Si的高硬度、强原子间结合力,该复合涂层明显地改善了基体合金的摩擦和磨损性能.
参考文献
[1] | Fu YQ.;Wang Y.;Khor KA.;Batchelor AW. .Fretting wear behaviors of thermal sprayed hydroxyapatite (HA) coating under unlubricated conditions[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,1998(1):132-139. |
[2] | Raj SV. .AN EVALUATION OF THE PROPERTIES OF CR3SI ALLOYED WITH MO[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1995(1/2):229-241. |
[3] | Conde A.;Zubiri F.;de Damborenea J. .Cladding of Ni-Cr-B-Si coatings with a high power diode laser[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):233-238. |
[4] | 陈瑶,王华明.TiAl合金激光表面合金层中TiC凝固生长形态及机制[J].中国有色金属学报,2002(05):863-868. |
[5] | B. Stolz;R. Poprawe .Surface conductivity modification of ceramics with laser radiation[J].Surface & Coatings Technology,1999(1/3):394-400. |
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%