本研究主要探討鎂及鎂合金金屬於水溶液環境中的電化學腐蝕行為，並且從文獻中所得極化行為之實驗結果，利用Butler-Volmer方程式及Tafel方程式模擬出本研究之適當反應機制及其極化曲線。
而從模擬結果發現，在低電位區域鎂金屬的電化學氧化產生一價鎂離子Mg+，且清楚的發現在高電位部分區域有鎂金屬的陽極氧化部分有二價鎂離子Mg2+的析出，此外，可發現在中間電位部分區域存在高低兩電位區之結果依一定比例組成模擬出本次研究結果。

This study focused on the electrochemical corrosion behavior of magnesium and magnesium alloy metal in an aqueous environment.  Using Butler-Volmer equation and the Tafel equation to simulate the polarization curve of this study. As we found that the unipositive   is involved as an early step in the electrochemical oxidation of magnesium at low potential region. And it is clear that, during the anodic oxidation of magnesium metal, the transfer simultaneously of two electrons to form  at high potential. Besides ,there is a proportion combine two curves to involve the consequence at middle potential.

目  錄	
誌謝I
論文提要II
AbstractIII
目  錄IV
圖目錄VI
表目錄VII
第一章 緒論1
1-1前言1
1-2鎂在中性溶液中的腐蝕反應3
第二章 鎂在水溶液中的腐蝕反應機構的文獻回顧4
2-1在不含 之環境的腐蝕4
2-2在含Cl-之環境的腐蝕7
2-3 NDE（Negative difference effect）之研究及進展9
2-4鎂腐蝕之動力學數據（Tafel 斜率）之分析22
2-5比較文獻中 及 之值23
第三章 模擬結果與討論24
3.1極化曲線模擬24
3-2陽極反應行為之模擬29
3-3陽極反應機制之討論32
3-4模擬與實驗數據之討論36
第四章 結論45
符號說明46
參考文獻48


圖目錄
圖2-1 鎂合金AM60之點蝕機制示意圖8
圖2-2 負差效應（NDE）示意圖9
圖2-3 微雙金屬電池示意圖12
圖2-4 一價鎂離子 模型之圖示15
圖2-5部分表面保護層之模型15
圖2-6顆粒腐蝕模型16
圖2-7鎂氰化物的形成模型17
圖2-8 NDE之新的模型圖示20
圖3-1鎂的極化曲線36
圖3-2極化曲線之低壓部分的數據38
圖3-3極化曲線之高壓部分的數據41


表目錄
表1-1腐蝕交換電流密度及腐蝕電位之值23
表3-1極化曲線之低壓部分的數據39
表3-2極化曲線之高壓部分的數據42
表3-3極化曲線之i1+i2的數據44

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