首页> 外文会议>International Symposium on Metastable and Nano-Materials(ISMANAM-2005); 20050703-07; Paris(FR) >Structural and microstructural study of Fe-31Cr-12Co mixture prepared by ball milling
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Structural and microstructural study of Fe-31Cr-12Co mixture prepared by ball milling

机译:球磨制备的Fe-31Cr-12Co混合物的结构和微观结构研究

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Nanostructured Fe-31Cr-12Co mixture was prepared by high energy ball milling (BM) of elemental Fe, Cr and Co powders. The obtained powders were characterized by X-rays diffraction (XRD) using Rietveld's method. The BM leads to the allotropic transformation of Co from FCC to HCP form during the first hour of milling and the formation of a disordered Fe(Cr, Co) solid solution (SS) with BCC structure after 12 h of milling. The microstructural analysis using the profile fitting shows the nanostructured character of the obtained powders. The diffraction line broadening of the SS is Miller indices dependent and is a consequence of anisotropy in size and strains.
机译:通过元素铁,铬和钴粉末的高能球磨(BM)制备纳米结构的Fe-31Cr-12Co混合物。使用Rietveld方法通过X射线衍射(XRD)表征获得的粉末。在研磨的第一个小时,BM导致Co从FCC转变为HCP的同素异形,并且在研磨12 h后形成具有BCC结构的无序Fe(Cr,Co)固溶体(SS)。使用轮廓拟合的微结构分析显示了获得的粉末的纳米结构特征。 SS的衍射线展宽取决于Miller指数,是尺寸和应变各向异性的结果。

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