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研究生： 許益得
YiTe Hsu
論文名稱： SiC<p>/A390鋁基複合材料鑄件機械性質及腐蝕磨耗行為之研究
Studies on the Mechanical Properties and Corrosion Wear Behavior of SiC<p>/A390 Al-matrix Composites
指導教授： 邱弘興
Chiou, Horng-Shing
學位類別： 碩士
Master
系所名稱： 工業教育學系
Department of Industrial Education
畢業學年度： 87
語文別： 中文
論文頁數： 94
中文關鍵詞： A390鋁合金 、鋁基複合材料 、機械性質 、腐蝕磨耗
英文關鍵詞： A390 Aluminum Alloy, Al-matrix Composites, Mechanical Properties, Corrosion Wear
論文種類： 學術論文
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    • 本研究主要在探討SiC<p>之粒徑（46μm、80μm）及添加量（5wt％、10wt％）、固溶處理（480℃，3小時）、人工時效處理時間（150℃，1、3、10小時）及腐蝕磨耗環境（蒸餾水及3.5wt％鹽水）等實驗條件不同時，對於SiC<p>/A390鋁基複合材料鑄件機械性質及腐蝕磨耗行為之影響。
    實驗結果顯示，SiC<p>粒徑及添加量增加可提升SiC<p>/A390鋁基複合材料鑄件之硬度值及耐腐蝕磨耗性，且以添加量增加對硬度值的提升效果最為顯著。SiC<p>添加量為5wt％時，SiC<p>粒徑增加可提升抗拉強度值，但添加量為10wt％時，卻會造成抗拉強度值的降低。
    人工時效處理時間增加，可提升A390鋁合金之抗拉強度值，而對SiC<p>/A390鋁基複合材料鑄件之抗拉強度值及耐腐蝕磨耗性並沒有明顯影響。人工時效處理時間增至10小時後，其硬度值有明顯的提升。
    在腐蝕磨耗環境方面，SiC<p>/A390鋁基複合材料鑄件與A390鋁合金在蒸餾水中之耐腐蝕磨耗性皆比在3.5wt％鹽水中為佳，而其耐腐蝕性則會隨著SiC<p>添加量之增加而降低。

    The primary purpose of this research was to investigate the effects of SiC particles (SiC<p>) size (46μm、80μm ) and the amount of reinforcements (5wt%、10wt%), solid solution treatment (480℃,3 hours), articificial aging (150℃, 1、3、10 hours) and the environments of corrosion wear (distilled water、3.5wt% NaCl solution) on the mechanical properties and corrosion wear behavior of SiC<p>/A390 Al-matrix composites.
    The results show that the increasing of SiC<p> size and the amount of reinforcements increased the hardness and the corrosion wear resistance of SiC<p>/A390 Al-matrix composites. At 5wt% reinforcements , the increasing of the SiC<p> size increased the tensile strength, but at 10wt% the tensile strength was decreased.
    The tensile strength of A390 aluminum alloy was increased with the increasing of the holding time of artificial aging. For SiC<p>/A390 Al-matrix composites, the holding time of artificial aging has no significant influence on the tensile strength and the corrosion wear resistance.
    The corrosion wear resistance of SiC<p>/A390 Al-matrix composites and A390 aluminum alloy in the distilled water was better than that in the 3.5wt% NaCl solution. However, the corrosion resistance decreased with the increasing of the amount of the SiC<p> reinforcements.

    第一章 前　言………………………………………………………1 1-1 研究動機…………………………………………………1 1-2 研究目的…………………………………………………2 第二章 文獻探討……………………………………………………4 2-1 AMCs之融體鑄造…………………………………………4 2-1-1 AMCs之融體鑄造基本理論…………………………4 2-1-2 AMCs之融體鑄造攪拌方法…………………………5 2-1-3 AMCs之融體鑄造除氣方式…………………………6 2-2 AMCs之融體鑄造強化材之分散性………………………6 2-3 AMCs之融體鑄造的潤濕性………………………………9 2-4 AMCs之融體鑄造的流動性………………………………11 2-5 熱處理……………………………………………………12 2-5-1 鋁合金之析出強化處理………………………………12 2-5-2 複合材料之熱處理……………………………………14 2-6 AMCs之強化機構………………………………………15 2-7 AMCs之磨耗性質………………………………………17 2-8 AMCs之腐蝕問題………………………………………19 第三章 實驗方法及步驟…………………………………………21 3-1 實驗材料…………………………………………………21 3-2 實驗設備及裝置…………………………………………22 3-3 實驗配置…………………………………………………24 3-4 實驗流程…………………………………………………24 3-4-1 SiC<p>/A390鋁基複合材料熔煉與澆鑄…………24 3-4-2 熱處理………………………………………………26 3-4-3 試片製作……………………………………………26 3-4-4 機械性質試驗…………………………………………27 3-4-5 腐蝕磨耗試驗…………………………………………28 3-4-6 顯微組織觀察………………………………………28 3-4-7 抗拉試驗破斷面、腐蝕磨耗面及磨屑觀察…………29 第四章 實驗結果與討論…………………………………………30 4-1 製程參數對SiC<p>/A390鋁基複合材料鑄件顯微組織之影響……………………………………………………30 4-1-1 SiC<p>粒徑及添加量對SiC<p>/A390鋁基複合材料鑄件顯微組織之影響……………………………30 4-1-2 人工時效處理時間對SiC<p>/A390鋁基複合材料鑄件顯微組織之影響………………………………………31 4-2 製程參數對SiC<p>/A390鋁基複合材料鑄件機械性質之影響……………………………………………………31 4-2-1 SiC<p>粒徑及添加量對SiC<p>/A390鋁基複合材料鑄件機械性質之影響……………………………31 4-2-2 人工時效處理時間對SiC<p>/A390鋁基複合材料鑄件機械性質之影響………………………………………35 4-3 製程參數對SiC<p>/A390鋁基複合材料鑄件腐蝕磨耗行為之影響…………………………………………………36 4-3-1 SiC<p>粒徑及添加量對SiC<p>/A390鋁基複合材料鑄件腐蝕磨耗行為之影響………………………36 4-3-2 人工時效處理時間對SiC<p>/A390鋁基複合材料鑄件腐蝕磨耗行為之影響…………………………………38 4-3-3 SiC<p>/A390鋁基複合材料鑄件在蒸餾水及3.5wt％鹽水中之腐蝕磨耗行為及其差異…………………38 第五章 結論…………………………………………………………42 參考文獻………………………………………………………………45

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