影响AZ91D镁合金微弧氧化热损耗率的因素
Influencing Factors of Micro-arc Oxidation Heat Wastage Efficiency of AZ91D Magnesium Alloy
摘 要
测量并分析了电解液中NaOH的浓度、电源频率和反应时间对AZ91D镁合金微弧氧化过程中溶液单位发热量和热损耗率的影响,提出了降低电解液热损耗率的技术途径.结果表明,控制NaOH的浓度在2.0 g/L以内、适当降低电源频率、反应时间在20~25 min之内可以显著降低热损耗率.
镁合金
单位发热量
热损耗率
micro-arc oxidation
magnesium alloy
average heat quantity
heat wastage efficiency
Abstract
The influence of NaOH concentration,power frequcy and treatment time on the average heat quantity and heat wastage efficiency during micro-arc oxidation of AZ91D magnesium alloy was studied.The technical solutions to decline the heat wastage efficiency were also put forward.The experimental results showed that the heat wastage efficiency could be decreased obviously by controlling the NaOH concretation to be less than 2 g/L,lowering the power frequcy properly and controlling the treatment time to be within 20~25 min.
中图分类号 TG174.45
所属栏目 应用技术
基金项目 甘肃省重大科技专项(0702GKDA024)
收稿日期 2009/12/17
修改稿日期 2009/12/29
网络出版日期
作者单位点击查看
备注樊康乐,硕士研究生.
引用该论文: FAN Kang-le,YAN Feng-yun,HUANG Wang,CHENG Ji-dong. Influencing Factors of Micro-arc Oxidation Heat Wastage Efficiency of AZ91D Magnesium Alloy[J]. Corrosion & Protection, 2010, 31(10): 797～799
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参考文献
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【4】Khasolev O,Weiss D,Yahalom T.Anodizing of pure magnesium in KOH-aluminate solutions under sparking[J].Electrochem Soc,1999,146(50):1757-1761.
【5】杨巍,蒋百灵,鲜林云,等.溶质离子在铝合金微弧氧化陶瓷膜形成过程中的作用机理[J].中国有色金属学报,2009,19(3):464-468.
【6】贺子凯,唐培松.溶液体系对微弧氧化陶瓷膜的影响[J].材料保护,2001,34(11):12-13.
【7】李颂,刘耀辉,庞磊.电源频率对铸铝合金微弧氧化陶瓷层的影响[J].材料科学与工艺,2008,16(2):287-289.
【8】李全军,吴汉华,汪剑波,等.脉冲频率对纯钛微弧氧化膜生长特性的影响[J].无机材料学报,2006,21(2):488-492.
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