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題名 | Scale Formation on Ti6Al4V and Superdux 65 Stainless Steel after Superplastic Forming by Decomposition of (CaCO[feb0]+C)=利用(CaCO[feb0]+C)燃燒分解超塑性成型Ti6Al4V與Superdux 65雙相不鏽鋼之氧化層形成研究 |
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作者 | 蔡騰群; 徐景馨; 莊東漢; | 書刊名 | Proceedings of the National Science Council : Part A, Physical Science and Engineering |
卷期 | 22:1 1998.01[民87.01] |
頁次 | 頁126-131 |
分類號 | 440.365 |
關鍵詞 | 超塑性成型; Ti6Al4V; Superdux 65 stainless steel; Oxide scale; Oxidation; |
語文 | 英文(English) |
中文摘要 | 本研究探討 Ti6Al4V 及 Superdux 65 不鏽鋼分別在 927 ℃及 985 ℃溫度下於 CO �砟� CO 混合氣氛環境中的氧化反應行為。結果發現 Ti6Al4V 的氧化層結構具有多層形 態,由氧化層表面向內分別可得 TiO �砥]第一層), Al �� O �陛ATiO �砥]第二層),層 狀組織及α Ti;而 Superdux 65 不鏽鋼的表面氧化生成物則包含有 Cr �� O �陛AFeCr �� O �略� Fe �� O �� CO �陛C 在 Ti6Al4V 氧化層中可發現碳元素的聚集分佈現象, 而 Superdux 65 不鏽鋼的氧化層中則無上述現象產生。Superdux 65 不鏽鋼表面生成一層薄的 氧化層,此與 Ti6Al4V 具有厚且多層結構的氧化層大不相同,Ti6Al4V 及 Superdux 65 合 金的氧化動力學關係分別屬於拋物線及線性關係。 |
英文摘要 | The oxidation of Ti6Al4V and Superdux 65 stainless steel in a mixture gas of CO�畝nd CO has been studied at 927℃ and 985℃, respectively. The oxide scale for Ti6Al4V revealed a multilayer profile. From the surface to the interior, the oxide scale was sequentially composed of layers of TiO�� rutile (first), Al�烙��, rutile (second), lamellar phase and a band of α Ti. The surface products for superdux 65 were Cr�烙��,FeCr�烙�� and Fe�烙�浚O��. A higher concentration of the carbon element could be found in the oxide scale of Ti6Al4V. However, the oxide scale of Superdux 65 had no obvious accumulation of the carbon element. Superdux 65 formed a thin oxide scale, which was different from the thick stratified scales of Ti6Al4V. The oxidation kinetics of the Ti6Al4V. The oxidation kinetics of the Ti6Al4V and Superdux 65 alloys are the parabolic law and the linear relationship, respectively. |
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