摘要
采用BSC12型三价铬镀硬铬工作液(含三价铬28 g/L、复合配位剂35 g/L、缓冲剂120 g/L和催化剂20 g/L左右)在45钢和42Cr Mo钢棒材上进行了试验。采用金相显微镜、扫描电镜、能谱仪和显微硬度计考察了镀层的金相结构、微观形貌、元素组成、厚度和显微硬度。结果表明,该工艺镀速可达到1μm/min,所得铬镀层为纯金属铬,厚度可超过60μm,显微硬度900 HV以上。
A BSC12-type trivalent hard chromium plating bath composed of Cr（III） 28 g/L, composite complexing agent 35 g/L, buffering agent 120 g/L, and accelerating agent ca.20 g/L was tested on 45 and 42 Cr Mo steel. The metallographic structure, microscopic morphology, elemental composition, thickness and microhardness of the coating were examined by metalloscope, scanning electron microscope, energy-dispersive spectroscope and microhardness tester. The results showed that the process features a chromium deposition rate up to 1 μm/min and is able to produce pure chromium coatings thicker than 60 μm with a microhardness higher than 900 HV.
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2016年第7期362-365,共4页
Electroplating & Finishing
关键词
三价铬电镀
硬铬
厚度
显微硬度
trivalent chromium electroplating
hard chromium
thickness
microhardness
