完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | 楊淑雅 | en_US |
dc.contributor.author | Shu-Ya Yang | en_US |
dc.contributor.author | 劉增豐 | en_US |
dc.contributor.author | Dr. Tzeng-Feng Liu | en_US |
dc.date.accessioned | 2014-12-12T02:29:58Z | - |
dc.date.available | 2014-12-12T02:29:58Z | - |
dc.date.issued | 2002 | en_US |
dc.identifier.uri | http://140.113.39.130/cdrfb3/record/nctu/#NT910159013 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/69907 | - |
dc.description.abstract | 我們利用穿透式電子顯微鏡(TEM)研究鐵-9鋁-30錳-5鉻-1.2矽合金之相變化。在淬火狀態下,其顯微結構是肥粒鐵相(α)與細微的D03相混合,其中細微的D03相是在淬火過程中藉由連續規律化所產生。當此合金在450℃至950℃時效熱處理後隨溫度增加,其相變化過程為(α + D03 + α-Mn)→(α + D03 + β-Mn)→(α + β-Mn)→α。這樣的相變化過程與之前被研究的鐵-9.0鋁-30錳-1.2矽合金的相變化過程非常不一樣。在本篇論文中,值得令人注意的是當此合金在650℃時效處理並淬火後,發現有粗大D03與細微D03同時存在,是不曾被其他鐵-鋁-錳-鉻-矽合金研究者發現過。 | zh_TW |
dc.description.abstract | The phase transformations in the Fe-9.0Al-30Mn-5Cr-1.2Si alloy have been investigated by means of transmission electron microscopy. In the as-quenched condition, the microstructure of the alloy was ferrite phase containing extremely fine D03 particles, where the extremely fine D03 particles were formed by a continuous ordering transition during quenching. When the as-quenched alloy was aged at temperatures ranging from 450℃ to 950℃, the phase transformation sequence as the aging temperature increased was found to be (α + D03 + α-Mn) → (α + D03 + β-Mn) → (α + β-Mn) → α. This phase transformation is quite different from that observed in the Fe-9.0Al-29.5Mn-1.2Si alloy. It is noted that in the present study, the coexistence of the coarse and the fine D03 particles has never been found by other workers in the Fe-Al-Mn-Cr-Si alloys before. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | D03相 | zh_TW |
dc.subject | 連續規律化 | zh_TW |
dc.subject | 鐵-鋁-錳-鉻-矽合金 | zh_TW |
dc.subject | ordered D03 phase | en_US |
dc.subject | continuous ordering transition | en_US |
dc.subject | Fe-Al-Mn-Cr-Si alloy | en_US |
dc.title | 鐵-9鋁-30錳-5鉻-1.2矽合金之相變化 | zh_TW |
dc.title | Phase Transformations in an Fe-9Al-30Mn-5Cr-1.2Si Alloy | en_US |
dc.type | Thesis | en_US |
dc.contributor.department | 材料科學與工程學系 | zh_TW |
顯示於類別: | 畢業論文 |