摘要
对Mg3AlNi2镁基储氢合金进行了RE-Cr-Zr多元合金共渗处理,经并研究了多元合金渗层对合金耐蚀性的影响。结果表明:与未处理的Mg3AlNi2镁基储氢合金相比,经RE-Cr-Zr多元合金共渗后的合金在6 mol/L的KOH溶液中,腐蚀电位从-1.343 V正移至-1.162 V;全浸腐蚀240 h后的质量损失率降低了83.68%,合金的耐蚀性得到显著改善。渗剂配比(质量分数,%)为10镧铈混合稀土粉,50.5铬粉,8氟硼酸钾,30锆粉和1.5炔二醇类氟碳表面活性剂A。
RE-Cr-Zr multi-elements alloying layer was coated on the surface of Mg^lNi2 magnesium-based hydrogen storage alloy, and the effects of multi-elements alloying layer on corrosion resistance of magnesium-based hydrogen storage alloy were studied. The results show that compared with the untreated Mg3A1Ni2 magnesium-based hydrogen storage alloy, the alloy with RE-Cr-Zr multi-elements alloying layer can make the corrosion potential increase from -1.343 V to -1.162 V, and make mass loss rate of the alloy in 6 mol/L KOH solution for 240 h decrease by 83.68%, thus can effectively improve corrosion resistance of the MgrA1Ni2 magnesium-based hydrogen storage alloy. The agent is composed of 10wt% rare earth mixture powder, 50.5wt% chromium powder, 8wt% potassiumfluoborate, 30wt% zirconium powder and 1.5wt% cetylenic diol-type fluorocarbon surfactant A.
出处
《热加工工艺》
CSCD
北大核心
2013年第22期144-146,共3页
Hot Working Technology
