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镁基汽车电池合金的锻造工艺及组织性能
英文标题:Forging process and microstructure properties of Mg-based automotive battery alloy
作者:李振兴 王学军 
单位:1.天津职业大学 汽车工程学院 2.山东华宇工学院 汽车工程学院 
关键词:Mg1.8Al0.2Ni镁基电池合金 多向等温锻造工艺 锻造温度 耐腐蚀性能 充放电循环稳定性 
分类号:TG376.9
出版年,卷(期):页码:2021,46(3):15-20
摘要:

 采用不同温度进行了Mg1.8Al0.2Ni镁基电池合金的多向等温锻造工艺试验,并与锻造前的合金进行了显微组织、耐腐蚀性能和充放电循环稳定性的对比分析。结果表明:多向等温锻造工艺明显细化了合金晶粒,显著提高了合金的耐腐蚀性能和充放电循环稳定性;随着锻造温度从350 ℃增至450 ℃Mg1.8Al0.2Ni镁基电池合金的内部组织先细化、后粗化,合金的耐腐蚀性能和充放电循环稳定性均先提高、后下降;与锻造前的合金相比,经350 ℃多向等温锻造后,Mg1.8Al0.2Ni镁基电池合金的腐蚀电位正移了32 mV,充放电循环20 次后放电容量保持率增大了21%,合金的耐腐蚀性能和充放电循环稳定性均得到了显著提高。

 The multi-directional isothermal forging process tests of Mg1.8Al0.2Ni Mg-based battery alloy were carried out at different temperatures, and the microstructure, corrosion resistance property and charge-discharge cycle stability were compared and analyzed with the alloy before forging. The results show that the multi-directional isothermal forging significantly refines the grains of  alloy and improves the corrosion resistance property and charge-discharge cycle stability of alloy. With the increasing of forging temperature from 350 ℃ to 450 ℃, the internal microstructure of Mg1.8Al0.2Ni Mg-based battery alloy is first refined and then coarsened, and the corrosion resistance property and the charge-discharge cycle stability of alloy are first increased and then decreased. Compared with the alloy before forging, the corrosion potential of Mg1.8Al0.2Ni Mg-based battery alloy after multi-directional isothermal forging at 350 ℃ is positively shifted by 32 mV, the retention rate of discharge capacity increases by 21% after twenty charge-discharge cycles, and the corrosion resistance property and the charge-discharge cycle stability of alloy are significantly improved.

 

基金项目:
天津市科学技术委员会科研课题(18JCTPJC58500)
作者简介:
李振兴(1988-),男,硕士,讲师 E-mail:li_zhenxing_love@126.com
参考文献:

 [1]孙欣,阚洪敏,魏晓冬, .镁基储氢合金制备技术的研究进展[J].化工新型材料,2019,47(11):232-235,240.


 


Sun X, Que H M, Wei X D, et al.Research progress in preparation of magnesium-based hydrogen storage alloy[J].New Chemical Materials,2019,47(11):232-235,240.


 


[2]吴敏,黎聪.汽车电池负极镁基合金Mg-Ni-Y-Gd的组织与性能[J].电镀与精饰,2020,42(2):11-14.


 


Wu M, Li C.Microstructure and properties of Mg-based alloy Mg-Ni-Y-Gd for automotive battery anode[J].Plating & Finishing,2020,42(2):11-14.


 


[3]李海斌,姬鹏.机械合金化Mg-Ni-Cr-Ti镁基电池合金的组织与性能研究[J].轻合金加工技术,2019,47(7):68-71.


 


Li H B, Ji P.Microstructure and properties of mechanical alloying Mg-Ni-Cr-Ti Mg-based battery alloys[J].Light Alloy Fabrication Technology,2019,47(7):68-71.


 


[4]李海斌,郄彦辉.新型稀土镁合金汽车电池的铸造工艺及性能研究[J].特种铸造及有色合金,2019,39(5):487-489.


 


Li H B, Hao Y H.Casting process and properties of new rare earth alloys for automotive batteries[J].Special Casting & Nonferrous Alloys,2019,39(5):487-489.


 


[5]吴正乾,程艳.新能源汽车电池用新型镁基储氢合金的组织与性能[J].热加工工艺,2016,45(16):45-47.


 


Wu Z Q, Cheng Y.Microstructure and properties of new type of magnesium based hydrogen storage alloy for new energy automobile battery[J].Hot Working Technology,2016,45(16):45-47.


 


[6]苑慧萍,蒋利军.不同碱溶液表面处理对稀土镁镍基储氢合金的影响[J].无机化学学报,2018,34(12):2271-2279.


 


Yuan H P, Jiang L J.Effect of surface treatment with different alkaline solutions on rare earth-magnesium-nickel based hydrogen storage alloy[J].Chinese Journal of Inorganic Chemistry,2018,34(12):2271-2279.


 


[7]姜婉婷,罗永春,赵磊, .稀土元素对R-Y-NiA2B7型无镁储氢合金微观结构和电化学性能的影响[J].无机化学学报,2018,34(10):1817-1825.


 


Jiang W T, Luo Y C, Zhao L, et al.Effect of rare earth elements on the microstructure and electrochemical properties of Mg-free R-Y-Ni based A2B7-type hydrogen storage alloys[J].Chinese Journal of Inorganic Chemistry,2018,34(10):1817-1825.


 


[8]史云斌,黄瑞.混合动力汽车用镁基储氢合金制备与性能研究[J].铸造技术,2018,39(2):302-305.


 


Shi Y B, Huang R.Preparation and properties of Mg-based hydrogen storage alloys for hybrid electric vehicle[J].Foundry Technology,2018,39(2):302-305.


 


[9]宋飞,罗丹.混合动力车电池用镁基储氢合金的制备及性能[J].金属热处理,2017,42(12):90-94.


 


Song F, Luo D.Preparation of Mg based hydrogen storage alloy for hybrid car battery and its properties[J].Heat Treatment of Metals,2017,42(12):90-94.


 


[10]郝孟军,宫涛,代艳霞.汽车轮毂用改性镁合金锻造工艺[J].锻压技术,2019,44(4):22-27.


 


Hao M J, Gong T, Dai Y X.Modified magnesium alloy forging process for automobile hub[J].Forging & Stamping Technology,2019,44(4):22-27.


 


[11]郭强,严红革,陈振华, .AZ80镁合金多向锻造变形过程中晶粒取向的演变[J].金属学报,2007,43(6):619-624.


 


Guo Q, Yan H G, Chen Z H, et al.Evolution of the grain orientation of AZ80 magnesium alloy during multiple forging process[J].Acta Metallurgica Sinica,2007,43(6):619-624.


 


[12]姜俊,李慧中,欧阳杰, .多向锻造AZ80A镁合金的静态再结晶行为[J].中国有色金属学报,2014,(9):2205-2212.


 


Jiang J, Li H Z, Ouyang J, et al.Static recrystallization behavior of multi-directional forged AZ80A magnesium alloy[J].The Chinese Journal of Nonferrous Metals,2014,(9):2205-2212.

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