摘要
研究了不同Al含量AlxFeCoCrNiCu(x=0.25、0.5、1)高熵合金的组织结构,探讨了Al含量对合金电化学性能的影响,并与304不锈钢进行对比。结果表明,制备的高熵合金晶体结构由简单的FCC结构转为FCC和有序BCC结构。与此同时,随着Al含量的增加,合金的硬度越大,从165HV提高到485HV。极化曲线表明,在0.5mol/L H2SO4溶液和1mol/L NaCl溶液中,高熵合金和304不锈钢相比,Al0.5FeCoCrNiCu合金表现出较好耐腐蚀性和抗孔蚀能力。
The microstructure of AlxFeCoCrNiCu（x=0.25,0.5,1） with different Al content have been studied.Their electrochemical properties are compared with 304 stainless steel and AlxFeCoCrNiCu high-entropy alloys.The results show that the structure of prepared high-entropy alloy is gradually changed from a single FCC phase to FCC phase and BCC phase with the addition of Al.With the addition of aluminum from x=0.25 to 1.0,the hardness of the alloys increase from 165 to 485 HV correspondingly.The polarization curves show that alloys has the better corrosion resistance than 304 stainless steel in 0.5mol/L H2SO4 solution and 1mol/L NaCl solution,and meanwhile Al0.5FeCoCrNiCu high-entropy alloy has the best comprehensive corrosion resistance.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2013年第4期532-535,共4页
Journal of Functional Materials
基金
"十一五"国家科技支撑计划重大资助项目(2006BAJ04A04)
辽宁省教育厅资助项目(2008282)
关键词
高熵合金
组织结构
电化学性能
high-entropy alloys
microstructure
electrochemical properties
作者简介
牛雪莲（1982-），女，辽宁锦州人，博士，师承王立久教授，从事金属材料研究。
通讯作者：王立久
