湖南科技大学学报（自然科学版）
湖南科技大學學報（自然科學版）
호남과기대학학보（자연과학판）
JOURNAL OF HUNAN UNIVERSITY OF SCIENCE & TECHNOLOGY（NATURAL SCIENCE EDITION）
2014年
1期
88-92
,共5页
铝合金%腐蚀%自腐蚀电位%电极电位%电化学性能
鋁閤金%腐蝕%自腐蝕電位%電極電位%電化學性能
려합금%부식%자부식전위%전겁전위%전화학성능
allloy%corrosion%corrosion potential%electrode potential%electrochemical performance
研究Al-Me（Me：Mg，Zn，Bi，Sn，Pb，In，Ga）二元合金在25℃4 mol/L NaOH碱性介质中的析氢腐蚀速率、自腐蚀电位、恒电流极化电极电位。结果表明：在25℃4 mol/L NaOH碱性介质中，纯铝中加入 Zn或In的Al-Me二元合金析氢腐蚀速率增大，自腐蚀电位负移；加入Bi或Ga的Al-Me二元合金析氢速率影响不大，自腐蚀电位负移；添加Mg，Sn或Pb的Al-Me二元合金析氢速率降低，自腐蚀电位正移。当以100 mA/cm2的电流密度进行恒电流极化时，Mg，Zn，Bi，In能使Al-Me二元合金电极电位稍有负移，Sn，Pb，Ga能使Al-Me二元合金电极电位大幅度负移。
研究Al-Me（Me：Mg，Zn，Bi，Sn，Pb，In，Ga）二元閤金在25℃4 mol/L NaOH堿性介質中的析氫腐蝕速率、自腐蝕電位、恆電流極化電極電位。結果錶明：在25℃4 mol/L NaOH堿性介質中，純鋁中加入 Zn或In的Al-Me二元閤金析氫腐蝕速率增大，自腐蝕電位負移；加入Bi或Ga的Al-Me二元閤金析氫速率影響不大，自腐蝕電位負移；添加Mg，Sn或Pb的Al-Me二元閤金析氫速率降低，自腐蝕電位正移。噹以100 mA/cm2的電流密度進行恆電流極化時，Mg，Zn，Bi，In能使Al-Me二元閤金電極電位稍有負移，Sn，Pb，Ga能使Al-Me二元閤金電極電位大幅度負移。
연구Al-Me（Me：Mg，Zn，Bi，Sn，Pb，In，Ga）이원합금재25℃4 mol/L NaOH감성개질중적석경부식속솔、자부식전위、항전류겁화전겁전위。결과표명：재25℃4 mol/L NaOH감성개질중，순려중가입 Zn혹In적Al-Me이원합금석경부식속솔증대，자부식전위부이；가입Bi혹Ga적Al-Me이원합금석경속솔영향불대，자부식전위부이；첨가Mg，Sn혹Pb적Al-Me이원합금석경속솔강저，자부식전위정이。당이100 mA/cm2적전류밀도진행항전류겁화시，Mg，Zn，Bi，In능사Al-Me이원합금전겁전위초유부이，Sn，Pb，Ga능사Al-Me이원합금전겁전위대폭도부이。
The corrosion rate of hydrogen evolution,open circuit potential,galvanostatic polarizations electrode potential of Al -Me (Me:Mg,Zn,Bi,Sn,Pb,In,Ga)binary alloy in 25 ℃ 4 mol/L NaOH alkaline medium was studied respectively.The results showed that the hydrogen evolution rate of aluminium alloy slight increment when the Zn,In elements is putted in the pure Al,when Bi,Ga elements is added to the pure Al,the hydrogen evolution rate of aluminium alloy has no influence ,but the corrosion potential of aluminium alloy shifte positively .In contrast,the hydrogen evolution rate of aluminium alloy reduce to some extent,the corrosion potential shifte negatively when other elements (Mg,Sn,Pb )is added to the pure Al .Besides,the electrode potential of Al-Me binary alloy shift negatively slightly when Mg,Zn,Bi,In is putted in pure Al.the electrode potential of Al-Me binary alloy shift positively substantially when Sn,Pb,Ga is added to pure Al.
