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研究生:劉永吉
論文名稱:熱處理對鋯基塊狀非晶質合金之水溶液腐蝕性影響
論文名稱(外文):Effects of Annealing on the Corrosion Behavior of Zr-based amorphous alloy in Aqueous Solutions
指導教授:吳建國吳建國引用關係
指導教授(外文):Jiann-Kuo Wu
學位類別:碩士
校院名稱:國立臺灣海洋大學
系所名稱:材料工程研究所
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:77
中文關鍵詞:鋯基非晶質合金腐蝕
外文關鍵詞:Zr-based metallic glassCorrosion
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本研究目的在探討鋯基非晶質合金及其熱處理過後所產生之結晶態在室溫3.5wt% NaCl,1N H2SO4,1M NaOH和1M NH4OH 四種水溶液中之腐蝕行為。在3.5% NaCl水溶液中,非晶質合金及其結晶合金均有發生孔蝕的現象,而非晶質合金的抗腐蝕性質比熱處理後的結晶合金要好。在1N H2SO4 水溶液中,熱處理過後的結晶合金之抗腐蝕性質明顯優於非晶質合金,而在1M NaOH、1M NH4OH 水溶液中,結晶合金之抗腐蝕性質也優於非晶質合金,但是結果差異不大。由TEM結果顯示出鋯基非晶質合金經熱處理後,會形成奈米尺寸的結晶。
The purpose of this study is to investigate the corrosion behavior of Zr-based amorphous alloy and its crystalline state in 3.5wt% NaCl, 1N H2SO4, 1M NaOH and 1M NH4OH aqueous solutions at room temperature.
For Zr41.2Cu12.5Ni10Ti13.8Be22.5 in 3.5wt% NaCl aqueous solutions, both amorphous and crystalline state show susceptibility to pitting corrosion, and the corrosion resistance of amorphous state is better than crystalline state.
For Zr41.2Cu12.5Ni10Ti13.8Be22.5 in 1N H2SO4 aqueous solution, the corrosion resistance of its crystalline state is much better than amorphous state, due to its passive film formation. In 1M NaOH and 1M NH4OH aqueous solutions, the corrosion resistance of their crystalline states are superior to their amorphous states.
The result by TEM micrograph shows that the nanocrystalline states of Zr-based amorphous alloys can be obtained after annealing heat treatment.

目錄
摘要....................................................i
英文摘要.................................................ii
目錄....................................................iii
表目錄...................................................vi
圖目錄...................................................vii
第一章 緒論...............................................1
1-1 簡介.................................................1
1-2 研究目的..............................................2
第二章 文獻回顧............................................3
2-1非晶態合金的發展歷史.....................................3
2-2非晶質合金之特性........................................7
2-3非晶質的製造方法........................................10
2-4非晶質合金的形成........................................12
2.4.1 非晶質合金的形成要素..................................12
2.4.2 晶粒尺寸與玻璃化.....................................15
2.4.3 簡約玻璃轉換溫度.....................................15
2.5 化學性質..............................................16
第三章 實驗方法............................................17
3-1 實驗流程..............................................17
3-2 實驗材料..............................................18
3-3 X-ray繞射............................................18
3-4 DSC分析實驗...........................................20
3-5 Vickers hardness test...............................20
3-6 循環極化實驗...........................................21
3-7 XPS表面分析實驗........................................23
3-8 TEM分析實驗...........................................24
第四章 實驗結果與討論.......................................25
4-1 X-Ray繞射結果.........................................25
4-2 DSC熱分析結果.........................................30
4-3 Vickers硬度分析結果....................................32
4-4 XPS表面分析結果........................................35
4-5 電化學循環極化試驗......................................36
4-5-1 Zr41.2Cu12.5Ni10Ti13.8Be22.5非晶質合金在 3.5% NaCl...37
4-5-2 Zr41.2Cu12.5Ni10Ti13.8Be22.5非晶質合金在 1N H2SO4....41
4-5-3 Zr41.2Cu12.5Ni10Ti13.8Be22.5非晶質合金在 1M NaOH.....45
4-5-4 Zr41.2Cu12.5Ni10Ti13.8Be22.5非晶質合金在 1M NH4OH....49
4-6 穿透式電子顯微鏡(TEM)微觀組織觀察.........................51
第五章 結論................................................55
第六章 參考文獻.............................................56
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