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題 名 | 溫度對Al-4.2Wt%Cu/0.3μmAl[feaf]O[feb0](p)複合材料機械性質之影響=Temperature Effect on Mechanical Property of A1-4.2wt%Cu/0.3[fedd]mAl[feaf]O[feb0](p)Composite |
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作 者 | 張子欽; 陳志明; 鄭文達; | 書刊名 | 勤益學報 |
卷 期 | 13 1996.02[民85.02] |
頁 次 | 頁25-42 |
分類號 | 440.35 |
關鍵詞 | 金屬基複合材料; 降伏強度; 抗拉強度; 伸長率; 漩渦; 破壞面; Metal matrix composites; 0.2%stress; Ultimate tensile strength; Elongation; Dimples; Fracture surface; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究係探討Al-4.2wtCu合金含1,2,3和4wt之0,3μmAl�烙��(p)金 屬複合材料和母材本身於30℃至480℃作用溫度範圍內之高溫拉伸行為。發現拉 伸性質之轉換溫度約180℃,亦即降伏強度,抗拉強度及伸長率在作用溫度低於此 轉換溫度時,變化不大;若超過此溫度,則降伏強度及抗拉強度會隨作用溫度升 高而下降,至480℃時所有材料具有同樣強度;伸長率則隨作用溫度升高而上升。 另外,這些拉伸性質在此作用溫度範圍內均優於母材且隨Al�烙�偭�粒含量增加 而上升。這些複合材料之破壞顯微結構均隨作用溫度不同而改變,其中破壞面之 漩渦區域,隨作用溫度及Al�烙�偭�粒含量增加而變多。 |
英文摘要 | The tensile fracture behavior of an A1-4.2wtCu alloy metal matrix composites (MMCs) reinforced with 1,2,3 and 4wt 0.3 μm aluminum oxide particles was investigated as a function of temperaturebetween 30℃ and 480℃, and compared with the mechanical property ofthe unreinforced alloy. It was observed that the transfer temperatureof the tensile property was 180℃. Above 180℃, degrades the me-chanical strength(0.2 proof stress and ultimate tensile strength)and increases the elongation. These composites have the same mechan-ical strength at 480℃. In addition, these composites have thehigher mechanical strength and elongation than those of the parentmaterial. Vith increasing contents of the reinforcement will improvethe previous properties of the composite. The microstructure of thefrocture surface in these composites also varies with temperature.The dimple regions of fracture surface increas with increasing thetemperature and the contents of reinforcements. |
本系統中英文摘要資訊取自各篇刊載內容。