为提高煤矿巷道锚杆的耐磨性能,延长其使用寿命,利用脉冲电沉积法,在 Q235锚杆表面沉积获得 Ni-TiN 涂层.采用扫描电镜(SEM)和磨损实验机等研究 Ni-TiN 涂层的组织结构和耐磨性能,并利用BP 神经网络模型对 Ni-TiN 涂层的耐磨性能进行预测研究.结果表明,该 BP 神经网络模型结构为3×8×1,其实验值与预测值的拟合相似度 R ＝0．9994,最大相对误差为1．56％,最小相对误差为0．83％.SEM 分析表明,当采用电流密度4．5 A/dm2、脉冲占空比30％及 TiN 粒子悬浮量6 g/L 时,Ni-TiN 涂层的磨损量较小.
In order to improve the wear resistance of anchor bolts in the coal roadway,and prolong their service life,Ni-TiN coatings were successfully prepared on the surface of Q235 anchor bolts by using pulse electrodepo-sition method.The microstructure and wear resistance of the coatings were investigated by using scanning elec-tron microscope (SEM)and abrasion tester.And the wear resistances of Ni-TiN coatings were forecasted by using a BP artificial neural network model.The results indicate that the structure of the BP model is 3×8×1, and the fitting similarity is 0.9994.The maximum and minimum relative deviation is 1.56% and 0.83%,respec-tively.SEM presents that the weight loss mass of the Ni-TiN coating is few at a current density of 4.5 A/dm2 , On-duty ratio of 30%,and TiN concentration of 6 g/L.
参考文献
| [1] | Zarebidaki A;Allahkaram S R .Effect of surfactant on the fabrication and characterization of Ni-P-CNT composite coatings[J].Journal of Alloys and Compounds,2010,509(05):1836-1840. |
| [2] | Chen W X;Tu J P;Xu Z D et al.Tribological properties of Ni-P-multi-walled carbon nanotubes electroles compos-ite coating[J].Materials Letters,2003,57:1256-1260. |
| [3] | M. A. Rahmat;R. H. Oskouei;R. N. Ibrahim;R. K. Singh Raman.The effect of electroless Ni-P coatings on the fatigue life of Al 7075-T6 fastener holes with symmetrical slits[J].International Journal of Fatigue,2013:30-38. |
| [4] | Youjun Xu;Yongyong Zhu;Guorong Xiao .Application of artificial neural networks to predict corrosion behavior of Ni-SiC composite coatings deposited by ultrasonic electrodeposition[J].CERAMICS INTERNATIONAL,2014(4):5425-5430. |
| [5] | Fafeng Xia;Chao Liu;Chunhua Ma .Preparation and corrosion behavior of electrodeposited Ni-TiN composite coatings[J].International Journal of Refractory Metals & Hard Materials,2012(Nov):295-299. |
| [6] | 夏法锋,焦金龙,马春阳,吴蒙华.基于AR模型的Ni-TiN纳米镀层显微硬度预测研究[J].功能材料,2012(02):140-143. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%