耐液锌腐蚀的铬碳化物覆层形成过程中稀土还原剂的作用  

Effect of Rare Earths in Formation of Liquid Zinc Corrosion Resistant Chromium Carbide Layer

作　　者：肖汉杰[1] 施长铎[1] 田雁晨 金山同 

机构地区：[1]东北大学材料冶金学院,沈阳110006

出　　处：《中国稀土学报》1999年第4期308-312,共5页Journal of the Chinese Society of Rare Earths

摘　　要：研究了热反应沉积扩散法形成耐液态锌腐蚀的铬碳化物覆层过程中稀土还原剂对覆层厚度、熔盐性质的影响。在９５０ ℃、含１５％ Ｃｒ２Ｏ３ 硼砂体系中加入８ ％ 稀土硅铁镁合金， 具有较好的铬碳化物覆层形成能力， 流动性好， 老化周期长， 工艺性能良好。The effect of rare earth reducing agent on the thickness of layer and properties of bath during the forming process of liquid zinc corrosion resistant chromium carbide layer through the thermal reaction deposition and diffusion method was studied. The results show that the addition of 8%RE Si Fe Mg can make the borax system with 15%Cr 2O 3 have better chromium carbide layer formation ability and excellent technical properties than that of Al or Si at 950 ℃.

关 键 词：稀土 锌 铬碳化物 覆层 还原剂 氧化 腐蚀 

分 类 号：TG174.451[金属学及工艺—金属表面处理]