电沉积Ni—W—B—SiC合镀层初探

利用正交法研究了影响电沉积Ｎｉ－Ｂ－ＳｉＣ复合镀层成分的主要因素，确定了最佳镀液组成的工艺参数；探讨了Ｎｉ－Ｗ－Ｂ－ＳｉＣ复合镀层的组织及结构，结果表明镀液组成对复合镀层的表面形貌影响不大；相反，工艺条件对其影响较大；Ｘ射线衍射表明，当镀层中Ｂ的质量分数为２％时，镀层为晶态结构；当Ｂ的质量分数在２％￣３％时为混晶态；当Ｂ的质量分类大于３％时为非晶态结构。

Original Approaching of Electrodeposited Ni-W-B-SiC Compsite Coating

The effects of main factors on the components o electrodeposited Ni-W-B-SiC composite coating are studied by means of orthogonal method,and the optimal structure bath composition and process paramters are determined,The structure of the Ni-W-B-SiC composite coating is discussed,and the results show that the bath composition has little effect on the surface morphololies of the catings.On the contrary,the plating conditions have a considerable effect on the morphololies.X-ray diffraction indicates that the Ni-W-B-SiC composite coating is crystal when boron content in the coating is below 2% .and it is mixture when boron content is from 2% to 3% but it is amorphous when boron content is over 3 %.