电沉积条件对锌镀层织构的影响

采用ＸＲＤ方法研究添加剂，络合剂，以及电流密度对锌酸盐镀锌层的织构和晶粒尺寸的影响，结果表明，添加剂ＡＡ－１的存在有利于（１０１）晶面取向；而ＤＩＥ则使镀层转变为１１０择优；两种添加剂同时存在下，可在一定的电流密度范围内获得高择优取向的锌镀层，而当又有络合剂ＴＥＡ和ＥＤＴＡ同时存在时，则可在更宽广的电流密度范围内制得日 粒细密、表面光亮、择优系数ＴＣ（１１０）在９８５以上的高择优取向锌沉积层。

Effect of Deposition Conditions on the Texture of Zinc Deposits

In this paper,the effects of additives,complex agents and current densities on thetexture and grain size of the zinc deposits from zincate baths are studied by means of X raydiffraction. The results show that the existence of additive AA-1 causes the preferential orientationof(101) face;when DIE is added alone,the preferential orientation changes to(110) face;withadditives both DIE and AA-1,Zn deposits with highly preferential orientation of(110) are obtainedin a certain range of current densities,and if complex agents TEA and EDTA are simultaneouslyexisted ,fine granular and bright Zn deposits with highly preferential orientation can be obtained in thewider range of current densities.