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采用多弧离子镀技术在锆合金表面制备了纯Cr涂层。利用扫描电子显微镜(SEM)、X射线衍射仪(XRD)和划痕仪分析了弧电流对纯Cr涂层表面形貌、物相结构以及膜基结合力的影响,并采用Image J图像处理软件对纯Cr涂层表面大颗粒分布进行统计和分析。结果表明,随着弧电流的增大,纯Cr涂层表面大颗粒尺寸先增大后减小,单位面积内大颗粒数目则先减少后增多,同时纯Cr涂层的择优生长趋势由(110)晶面变为(200)晶面,且纯Cr涂层与锆合金基材的膜基结合力先减小后增大。
Pure Cr coating was prepared on the surface of zirconium alloy by multi-arc ion plating. The effect of arc current on the surface morphology, phase structure and film-based bonding of pure Cr coating was analyzed by scanning electron microscope (SEM), X-ray diffractometer (XRD) and scratch tester. Image J image processing software Statistics and analysis of the distribution of large particles on pure Cr coating surface. The results show that with the increase of arc current, the size of pure Cr coating first increases and then decreases, while the number of large particles per unit area decreases first and then increases. The preferred growth trend of pure Cr coating from (110 ) Crystal plane becomes (200) crystal plane, and the bond strength between the pure Cr coating and the zirconium alloy substrate first decreases and then increases.