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標題Title: EFFECTS OF AGING TREATMENTS ON THE NANO-SCALE
作者Authors: 吳忠春,楊政峰..等
上傳單位Department: 機械工程系
上傳時間Date: 2009-12-2
上傳者Author: 吳忠春
審核單位Department: 機械工程系
審核老師Teacher: 吳忠春
檔案類型Categories: 研討會報告Seminar Report
關鍵詞Keyword: Aging Treatment, TEM, Microstructure, XRD, Ordering Transition, nano-scale (Fe,Mn)3AlCx carbides
摘要Abstract: In the as-quenched condition, the microstructure of the Fe-15Mn-8Al-0.7C alloy was the mixture of (ferrite + austenite) phases. TEM examinations revealed that no carbides precipitated within the austenite matrix, however, (B2+D03) phases could be formed within the ferrite region by continuous ordering transition. (2) When the alloy was aged from 450℃ to 650℃, the ordering phase transformation of α→α+B2→α+D03 could be found within the ferrite region. The transition temperatures of α→α+B2 and α+B2→α+D03 were found to be within the narrow range of 525℃ and 550℃, which were quite different from those observed in the Fe-Al and Fe-Mn-Al-C alloys before by other researchers.

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