非晶态Fe-Ni-Cr合金电沉积的研究  

A Study of Electrodepositing of Amorphous Fe-Ni-Cr Alloy

作　　者：何湘柱[1] 夏畅斌[1] 王红军[2] 龚竹清[3] 蒋汉瀛[3] 

机构地区：[1]湘潭工学院化学工程系,湖南湘潭411201 [2]广东工业大学机电工程学院,广东广州510095 [3]中南工业大学冶金系,湖南长沙410083

出　　处：《材料保护》2002年第1期5-7,共3页Materials Protection

基　　金：国家自然科学基金资助项目50004003

摘　　要：介绍了一种由合适的配合剂、稳定剂、添加剂组成的氯化物水溶液体系电沉积镜面非晶态Ｆｅ－Ｎｉ－Ｃｒ合金的方法。采用此法于室温下２０　ｍｉｎ可电沉积得到Ｆｅ、Ｎｉ、Ｃｒ含量分别为４５％～５５％、３３％～３７％、９％～２３％的镜面非晶态Ｆｅ－Ｎｉ－Ｃｒ合金镀层。采用等离子发射光谱（ＩＣＰ－ＡＥＳ）、Ｘ－ｒａｙ衍射和扫描电子显微镜（ＳＥＭ）等方法对非晶态Ｆｅ－Ｎｉ－Ｃｒ合金镀层的组成、结构、性能及其影响因素进行了检测和分析。实验结果表明，镀液各组分对合金镀层成分均有较明显的影响，只有当镀液中含有稳定剂Ｈ－Ｗ时电沉积所得合金镀层中才有Ｃｒ存在，且由于稳定剂Ｈ－Ｗ与添加剂的共同作用导致所得Ｆｅ－Ｎｉ－Ｃｒ合金镀层具有非晶态结构。A new system of Fe2+, Ni2+, Cr3+ containing chloride aqueous solution with appropriate accessory ingredient, stabilizing agent and additives has been proposed for electrodepositing of a mirror bright amorphous Fe-Ni-Cr alloy. An amorphous alloy coating containing 45%～55% Fe, 33%～37% Ni, 9%～23% Cr was ob tained at room temperature after 20 min electroplating. The properties and effec t factors of the Fe-Ni-Cr alloy coating were studied by inductively couple pla sm a atomic emission spectrometry (ICP-AES), X-ray diffraction (XRD) and scanning e lectron microscope (SEM). Experimental results showed that electrolyte ingredients had obvious effects on the properties of alloy coating. There was chromium in the coating only with the stabilizer H-W. Moreover just the synergetic effect of stabilizer H-W and additives resulted in amorphous state structure of Fe-Ni -Cr alloy coating.

关 键 词：电沉积 非晶态合金 铁镍铬合金 三价铬 稳定剂 

分 类 号：TG174.4[金属学及工艺—金属表面处理]