Interfacial Characteristics of Nanocrystalline FeMoSiB Alloys

Xuedong LIU Jingtang WANG State Key Lab.of RSA,Institute of Metal Research,Academia Sinica,Shenyang,110015,ChinaJie ZHU Jian JIANG International Centre for Materials Physics,Institute of Metal Research,Academia Sinica,Shenyang,110015,China

摘 要：<正> By using X-ray diffraction （XRD）, transmission electronic microscopy （TEM） and transmissionMssbauer spectroseopy （TMES）, the formation, structure and properties including microhardnessand electrical resistivity of nanocrystalline FeMoSiB alloys have been investigated. By annealing theas-quenched FeMoSiB sample at 833-1023K for 1 h, nanocrystalline materials with grain sizes of15 to 200 nm were obtained. Mssbauer spectroscopy results reveal a quasi-continuous distributionfeature of P（H）-H curves for 15 nm-and 20 nm-grained samples. Also, it was found that resistivityand microhardness of nanocrystalline Fe-Mo-Si-B alloys exhibit strong grain size effect.

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