Ti-3AR钛合金耐蚀性能研究  

Study on Corrosion-Resistance of a New Titanium Alloy Ti-3AR

作　　者：胡耀君[1] 刘果宗[1] 蔡学章[1] 曹继敏[1] 

机构地区：[1]西北有色金属研究院,宝鸡721014

出　　处：《稀有金属材料与工程》1992年第6期25-28,共4页Rare Metal Materials and Engineering

摘　　要：研究了新中强耐蚀钛合金Ti-3AR(Ti-Al-Mo-Ni)在室温,60C,沸腾条件下的20%—50%HNO_3、1.5%—30%H_2SO_4、1.5%—15%HCl中的耐蚀性,并从电化学角度对其耐蚀机理进行了分析。结论认为:Ti-3AR具有与Ti-12相当的良好耐蚀性能,这是由于新添加的合金元素Mo,Ni能程度不同地提高钛在H_2SO_4,HCl等介质中的腐蚀电位,并通过促进阳极钝化改善钛的腐蚀性能。The corrosion-resistance of a new titanium alloy Ti-3AR(Ti-Al-Mo-Ni)was studied in the solutions of 20%—50% HNO_3,1.5%—30% H_2SO_4,1.5%—15% HCl at the room temperature,60℃ and the boiling condition. The mechanism of resistance corrosion was analized by electrochemical means. The results show that Ti-3AR possesses corrosion-resistance as good as Ti-12 due to the increase of corrosion potentials of Ti in H_2SO_4 and HCl solutions by adding Mo and Ni in Ti-3AR.

关 键 词：Ti-3AR 钛合金 耐蚀性 机理 

分 类 号：TG174.22[金属学及工艺—金属表面处理]