Ga和In含量对Al-Zn-Mg-Cu铝合金溶解行为的影响
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摘要
通过调整Al-Zn-Mg-Cu铝合金中Ga和In的含量,研究了Ga、In对铝合金溶解速率的影响,建立了溶解过程的本构方程,并通过微观组织观察,分析了该铝合金的溶解反应机理。结果表明,通过调整Ga和In的含量,可以控制Al-Zn-Mg-Cu合金的溶解速率;当Ga、In的含量由2.01%、0.20%增至2.44%、0.52%时,铝合金的溶解速率由0.049 8mg/(mm2·h)增至3.402 0mg/(mm2·h),增幅显著。铝合金可溶解的原因是在含有Ga和In两种元素的第二相周围首先开始腐蚀,随后沿着基体表面扩展,腐蚀产物开裂、脱落,铝与水的反应持续进行。
By controlling the content of Ga and In in Al-Zn-Mg-Cu aluminum alloy,the effects of Ga and In on the degradation rate of the alloy were investigated.The constitutive equation of the degradation process was established.The mechanism of degradation reaction of the aluminum alloy was described by microstructure observation.The results reveal that the degradation rate of Al-Zn-Mg-Cu aluminum alloy can be controlled by adjusting the contents of Ga and In.When the content of Ga,In is increased from 2.01%、0.20% to 2.44%、0.52%,the degradation rate of the aluminum alloy is increased obviously from 0.049 8 mg/(mm~2·h)to 3.402 0 mg/(mm~2·h),which are attributed to the occurrence of corrosion around the second phase containing Ga and In,then spreading to the substrate,and then the corrosion production cracked and easily falled off,promoting continuous reaction of aluminum and water.
By controlling the content of Ga and In in Al-Zn-Mg-Cu aluminum alloy,the effects of Ga and In on the degradation rate of the alloy were investigated.The constitutive equation of the degradation process was established.The mechanism of degradation reaction of the aluminum alloy was described by microstructure observation.The results reveal that the degradation rate of Al-Zn-Mg-Cu aluminum alloy can be controlled by adjusting the contents of Ga and In.When the content of Ga,In is increased from 2.01%、0.20% to 2.44%、0.52%,the degradation rate of the aluminum alloy is increased obviously from 0.049 8 mg/(mm~2·h)to 3.402 0 mg/(mm~2·h),which are attributed to the occurrence of corrosion around the second phase containing Ga and In,then spreading to the substrate,and then the corrosion production cracked and easily falled off,promoting continuous reaction of aluminum and water.
引文
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[2] MARY A.Methods of manufacturing degradable alloys and products made from degradable alloys[P].United States Patent:US8770261B2,2014-07-08.
[3]朱秀荣,陈大辉,施虹霞,等.一种易腐蚀铝合金材料及其制备方法:中国,201610208905.7[P].2018-11-02.
[4] MUKTEPAVEL F O,UPIT G P.The embrittlemnet of Sn-Al eutectic alloy in water vapor[J].J.Mater.Sci.,1984,19(2):599-606.
[5] MUKTEPAVEL F O,VASYLYEV M,CZERWINSKI A,et al.Investigation of hydrogen embrittlement of Sn-Al alloy during contact with water vaper[J].J.Solid State Electrochem,2003,7(2):83-86.
[6] KRAVCHENKO O V,SEMENENKO K N,BULYCHEV B M,et al.Activation of aluminum metal and its reaction with water[J].J.Alloys Compd.,2005,397(1-2):56-82.
[7] SHEALY J R,WOODALL J M.A new technique for gattering oxygen and moisture from gases used in semiconductor processing[J].Appl.Phys.Lett.,1982,41(4):88-90.
[8] WOODALL J M,ZIEBARYH J,ALLEN C R.The science and technology of Al-Ge alloys as a material for enerhy storage,transport and splitting water[A].Proceedings of 2nd Energy Nanotechnology International Conference[C].Santa Clara California:Enic,2007.
[9] FAN M Q,XU F,SUN L X.Studies on Hydrogen generation characteristics of hydrolysis of the ball milling Al-based materials in pure water[J].Int.J.Hydrogen Tnergy.,2007,32(14):2 809-2 815.
[10] ZIEBARTH J T,WOODALL J M,KRAMER R A,et al.Liquid phase enabled reaction of Al-Ga and Al-Ga-In-Sn alloys with water[J].Int.J.Hydrogen Energy,2011,36(9):5 271-5 279.
[11]王一都,郝小军,雷英春,等.铟含量对铝锌铟合金在3%NaCl溶解中溶解性能的影响[J].科技与创新,2018(10):58-60.