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Fe-28Al合金中相转变

PHASE TRANSFORMATIONS IN Fe-28A1 ALLOYS

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【作者】 杜国维王政肖纪美

【Author】 DU Guowei;W ANG Zheng;XIAO Jimei (University of Science and Technology Beijing, 100083)

【机构】 北京科技大学

【摘要】 应用电镜及X射线衍射技术研究了含Cr及不含Cr的Fe-28at.-%Al合金中相变结果表明,1080℃淬火过程中,B2结构热畴已开始形成;缓冷通过B2相区,沿晶界出现α相;对Fe-28Al-5Cr合金还出现细小的CrN相沉淀,板状合金中B2→D03是一缓慢转变过程.

【Abstract】 The phase transformations in the Fe-28AI alloys with or without addition of Cr were studied by means of electron microscopy and X-ray diffraction techniques. The B2 antiphase domains (APD) has already been formed during quenching process from 1080℃.The Fe-enriched a-phase may precipitate along the grain boundaries in the alloys when cooling slowly through temperature range of just B2-phase occurred. In the Fe-28A1-5Cr alloy. the fine CrN-phase may also precipitate. The B2→D03 transformation was found to be a slow process in the sheet specimens.

【关键词】 Fe3AlB2反相畴D03反相畴α相CrN沉淀
【Key words】 Fe3A1B2 antiphase domainD03antiphase domainα-phaseCrN precipitate
  • 【文献出处】 金属学报 ,ACTA METALLRUGICA SINICA , 编辑部邮箱 ,1995年04期
  • 【分类号】TG111.5
  • 【被引频次】8
  • 【下载频次】49
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