摘要
利用２ｋＷＣＯ２激光器对不同合Ｓｉ量的ＡＩ－Ｓｉ合金进行了搭接扫描熔凝处理，通过ＳＥＭ和ＴＥＭ对激光熔凝处理后Ａｌ－Ｓｉ合金的组织结构进行了观察，通过测定在不同介质条件下的阳极极化曲线，讨论了激光熔凝处理对ＡＩ－ｓｉ合金耐蚀性的影响。结果表明，激光处理可改善Ａｌ－Ｓｉ合金在１０％Ｈ２ＳＯ４和１０％ＨＮＯ３溶液中的耐蚀性，而对Ａｌ－Ｓｉ合金在１０％ＨＣｌ和５％ＮａＣｌ溶液中的耐蚀性没有明显的促进作用。
Some samples of Al-Si alloy with different silicon Percentage were treated by overlapped scanning with a 2 kW CO2 laser. The structures of the Al-Si alloys after laserremelting treatment were examined by SEM and TEM.The anodic polarization curves of theAl-Si alloy samples treated by laser were measured in different corrosion solutions. Someeffects on corrosion resistance of Al-Si alloys treated by laser are discussed. Experimentalresults show that laser treatment benefits corrosion resistance of Al-Si alloys in the 10%H2SO4 and 10% HNO3 solutions;but it basically dosen't improve corrosion resistance in thel0% HCl and 5 % NaCI solutions.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1995年第5期389-394,共6页
Chinese Journal of Lasers
基金
中国科学院腐蚀与防护研究所腐蚀科学国家重点实验室资助
关键词
铝硅合金
激光熔凝处理
电化学腐蚀
aluminium silicon alloy,laser remelting treatment,corrosion
