論文名稱：以摩擦攪拌製程製造Al-Al3Ti複材
校所組別：國立中山大學材料科學研究所
研究生：張期詠 指導教授：高伯威 教授

摘要內容： 頁數：98
鋁合金因其質輕，且經過不同的處理後可得到良好的性質，因此在近年來已被大量的使用在輕量化的工程上面。通常以介金屬化合物強化的鋁合金材料，其強化相要有優良的熱穩定性和低的粗化速率，以及在鋁中的擴散率要低，因此鈦是一個很好的選擇，尤其當鋁跟鈦產生Al3Ti介金屬化合物時，其Al3Ti的熱穩定性高且結構穩定，因此以Al3Ti強化之鋁合金具有高強度和優異的熱穩定性的特點。
本實驗以摩擦攪拌製程技術，利用其細化晶粒跟具有良好均勻散佈的特性，針對Al-Ti粉末冶金試棒，做系統性的探討摩擦旋轉攪拌製程所得之晶粒大小與其機械性質及溫度之相關性。經摩擦攪拌製程合成之Al-Al3Ti複材，在製程參數轉速為 700 rpm，45 mm/min，攪拌道次四道下其楊氏係數可達 95.2GPa(表7-1)、抗拉強度為415 MPa，延伸率可達 17%。微結構主要特徵為介金屬化合物相Al3Ti顆粒(約為58 nm直徑)均勻散佈於鋁基材(晶粒大小約為 0.3

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目錄
圖表目錄……………………………………………………………….................................i
第一章 前
第二章 文獻回顧………………………………………………………...............................2
2.1 摩擦攪拌焊接...…………………………………………………….......................2
2.2 摩擦攪拌製程………………………………………………………......................7
2.3 Al-Ti合金…………………………………………………………......................9
2.3.1 鋁的應用………………………………………………...............................9
2.3.2 鈦元素的性質……………………………………………….......................9
2.3.3 Al-Ti合金性質……………………………………………….................. 11
第三章 研究目的………………………………………………………............................. 16
第四章 實驗方法……………………………………………………................................. 17
4.1 材料……………………………………………………………........................... 17
4.2 試棒製程……..……………………………………………................................. 17
　　 4.2.1 粉末混和以及稀釋................................................................................... 17 15
4.2.2 冷壓成形................................................................................................... 17
4.2.3 燒結............................................................................................................ 17
4.2.4 摩擦攪拌製程............................................................................................. 18
4.2.4.1摩擦攪拌製程的參數......................................................................... 18
4.2.5 二次加工-冷滾壓........................................................................................... .18
4.3 微結構分析........................................................................................................... 18 17
4.3.1光學顯微鏡觀察.............................................................................................18
4.3.2 X-ray 繞射......................................................................................................19
4.3.3掃描式電子顯微鏡.........................................................................................19
4.3.4 穿透式電子顯微鏡........................................................................................20
4.4 機械性質..............................................................................................................20
4.4.1 微硬度量測....................................................................................................20
4.4.2 拉伸試驗........................................................................................................20
第五章 實驗結果............................................................................................... .................. 22
5.1 微結構觀察......................................................................................... .................. 22
5.2 機械性質............................................................................................................... 28
5.2.1微硬度測試................................................................................................... 28
5.2.2 拉伸試驗...................................................................................................... 29
5.3 摩擦攪拌製程的應用........................................................................................... 32
5.4 摩擦攪拌的溫度量測........................................................................................... 33
第六章 討論.........................................................................................................................36
6.1摩擦攪拌製程製造Al-Al3Ti複材之介金屬化合物細化程度.......... .................. 36
6.2 介金屬化合物Al3Ti的生成............................................................... ................. 36
6.3 摩擦攪拌製程製造Al-Al3Ti複材的機械性質................................. ................. 38
6.4 摩擦攪拌製程製造Al-Al3Ti複材的強化機制..................................................39
第七章 結論......................................................................................................................... 41
第八章 參考文獻............................................................................................... .................. 91

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