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研究生:范量景
研究生(外文):Liang-Jing Fan
論文名稱:添加飛灰對鋁合金鑄件機械性質影響之研究
論文名稱(外文):Effect of Adding Fly Ash on Mechanical Properties of Aluminium Alloy Castings
指導教授:莊水旺莊水旺引用關係
指導教授(外文):Shuei-Wan Juang
學位類別:碩士
校院名稱:國立臺灣海洋大學
系所名稱:機械與機電工程學系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2010
畢業學年度:98
語文別:中文
論文頁數:64
中文關鍵詞:飛灰重力鑄造鋁基複合材料
外文關鍵詞:fly ashgravity castingaluminum composites
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金屬基複合材料技術發展多年,茲因價格昂貴難以普及。本研究以壓鑄用鋁合金為基材,選用火力發電廠燃煤廢棄物-飛灰作為增強材,探討飛灰添加壓鑄鋁合之創新複合材料機械性質影響之研究。
本研究實驗使用JIS規範ADC12壓鑄鋁合金,添加不同飛灰重量比,即0 wt%、2 wt%、4 wt%、6 wt%、8 wt%、10 wt% 於鋁基熔湯內攪拌混合,再以重鑄造法將混合好的容湯倒入預製模具內成形。成形後之複合材料鑄件分別進行機械性質檢測。
鑄件的密度伴隨飛灰添加比例有線性遞減之趨勢。磨耗試驗荷重於19.6 N時,鑄件磨耗量隨飛灰添加比例而遞減,趨勢較荷重9.8 N時顯著。鑄件拉伸強度與鑄件硬度受飛灰分佈性與鑄件內部缺陷之影響,試驗數據較不穩定,但從飛灰添加量於8 wt%及10 wt% 鑄件試驗結果得知,拉伸強度受飛灰添加比例而遞減,相反的鑄件硬度而有提高之趨勢

The forming technology of metal matrix composites has been developed for many years, but it is still not popularized due to high running cost. In this study, casting aluminum alloys selected as the base metal and the fly ash as the strengthened material, which is the coal-fired waste generated from the thermal power plant, was used to study the die-casting feasibility and mechanical properties of aluminum-fly ash (ALFA) composites.
In this study, ADC12 in JIS designation was selected as the base metal. The fly ash was added into the aluminum melt with different weight percentage, such as 0wt%, 2wt%, 4wt%, 6wt%, 8wt% and 10wt%, and followed by mechanical stirring to obtain an uniform distribution of fly ash inside the melt. Finally, the melt with mixed fly ash was poured into a pre-prepared mold formed by gravity casting processes. After forming, the mechanical properties of the composite casting were evaluated.
The density of the casting decreased with the fly ash increasing. The wear loss had the same tendency too, and the indentation was more significant when the applied load was reached 19.6 N than 9.8 N. The tensile strength and hardness of the casting were affected by the distribution of the fly ash, then resulting in the unstable experimental data. However, the results from casting contained 8wt% and 10wt% of fly ash showed that the tensile strength decreased with the fly ash increasing, but hardness increased.

致謝 I
中文摘要 II
Abstract III
目錄 IV
圖目錄 VI
第一章 緒論 1
1. 1 研究背景 1
1. 2 研究動機 2
1. 3 研究方法與目標 2
1. 4 論文結構 2
第二章 文獻回顧 4
2. 1 飛灰簡介 4
2. 2 金屬基複合材料製程技術 6
2. 2. 1 壓力滲透法 7
2. 2. 2 粉末冶金法 8
2. 2. 3 複合鑄造法 9
2. 3 複合材料混合理論 12
2. 4 潤濕性 13
第三章 實驗方法與步驟 21
3. 1 實驗方法流程 21
3. 2 實驗器材與設備 32
第四章 實驗結果與討論 42
4. 1 金相組織 42
4. 2 密度檢測 44
4. 3 磨耗試驗 46
4. 4 拉伸試驗 53
第五章 結論與未來展望 58
5. 1 結論 58
5. 2 未來展望 59
參考文獻 60

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