摘要
在含食品添加剂植酸钠的碱性溶液中,研究了甘油磷酸钙浓度对Mg-0.5Ca合金微弧氧化过程和微弧氧化膜性能影响。结果表明,随着甘油磷酸钙浓度增加,溶液电导率增加,氧化终电压减小。甘油磷酸钙能增加涂层厚度,增大微孔直径,并能提高微弧氧化膜的耐蚀性。EDS分析表明,加入甘油磷酸钙后,微弧氧化膜中磷含量增加,表明甘油磷酸钙参与了氧化膜的形成过程。当甘油磷酸钙浓度为15 g/L时,氧化样品的耐蚀性最好。
In an alkaline solution containing sodium phytate, a food additive, the influence of calcium glycerophosphate concentrations on the process of micro arc oxidation and the properties of micro arc oxidation coatings on Mg-0.5Ca alloys was investigated. The results show that with the increase of calcium glycerophosphate concentration, the solution conductivity increases and the final voltage decreases. Calcium glycerophosphtae could increase the coating thickness and the pore size, and improve the corrosion resistance of micro arc oxidation coatings. EDS analysis indicates that after addition of calcium glycerophosphate, the P content of micro arc oxidation coatings increases, indicating that calcium glycerophosphate takes part in the coating formation. The anodized sample formed in the solution containing 15 g/L calcium glycerophosphate exhibits the best corrosion resistance.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2014年第S1期302-305,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金(51061007)
江西省教育厅科学技术研究项目(GJJ12585)
江西科技师范大学本科生创业
科研基金资助
关键词
镁钙合金
微弧氧化
电解质
甘油磷酸钙
magnesium calcium alloys
micro arc oxidation
electrolyte
calcium glycerophosphate
