| 铝硅合金激光熔凝处理后的电化学腐蚀现象 |
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| 引用本文： | 顾林喻,梁工英,邢建东,黄俊达. 铝硅合金激光熔凝处理后的电化学腐蚀现象[J]. 中国激光, 1995, 22(5): 389-394 |
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| 作者姓名： | 顾林喻 梁工英 邢建东 黄俊达 |
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| 作者单位： | 西安工业学院，西安交通大学机械系，香港理工大学 |
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| 基金项目： | 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 |
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| 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。
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| 关 键 词： | 铝硅合金，激光熔凝处理，腐蚀 |
| 收稿时间： | 1994-05-02 |
Electrochemical Corrosion Phenomena of Al-Si Alloys byLaser Remelting Treatment |
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| Gu Linyu. Electrochemical Corrosion Phenomena of Al-Si Alloys byLaser Remelting Treatment[J]. Chinese Journal of Lasers, 1995, 22(5): 389-394 |
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| Authors: | Gu Linyu |
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| Abstract: | 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. |
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| Keywords: | aluminium silicon alloy laser remelting treatment corrosion |
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