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添加剂对化学镀Ni-Sn-P性能的影响

Southern Metals(2016)

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Abstract
研究了添加剂酒石酸钾钠、苹果酸、乳酸、丁二酸对化学镀Ni-Sn-P镀层性能的影响,测定了镀层沉积速率、耐腐蚀性及显微硬度,并通过正交试验对各因素进行了优化.结果表明:当酒石酸钾钠7.5 g/L,苹果酸15.0 g/L,乳酸32.5 g/L,丁二酸16 g/L时,镀层沉积速度可达10.85 mg/cm2·h,硬度达609.5 HV,镀层自腐蚀电位为-0.196 V;镀层光滑平整致密,表面颗粒呈胞状,大小均匀,无裂纹、空洞等明显缺陷,且与基体结合紧密;镀层中镍含量为84.52%,磷含量为11.55%,锡含量为3.93%.
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