Microstructural characterization of as-cast Co-B alloys

被引:16
|
作者
Fania, M. I. S. T.
Leonardi, T.
Coelho, G. C.
Nunes, C. A.
Avillez, R. R.
机构
[1] FAENQUIL, DEMAR, BR-12600970 Sao Paulo, Brazil
[2] Pontificia Univ Catolica Rio de Janeiro, DCMM, BR-22453900 Rio De Janeiro, Brazil
基金
巴西圣保罗研究基金会;
关键词
Co-B system; phase diagram; borides; solidification;
D O I
10.1016/j.matchar.2006.05.014
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This work presents results of microstructural characterization of as-cast Co-B alloys. Samples of different compositions were prepared by arc melting Co (min. 99.97%) and B (min. 99.5%) under argon atmosphere in a water-cooled copper crucible with non-consumable tungsten electrode and titanium getter. All samples were characterized by scanning electron microscopy (SEM) in back-scattered electron (BSE) mode, X-ray diffraction (XRD) and wavelength dispersive spectrometry (WDS). A good agreement is observed between the obtained microstructures and those expected by the currently accepted Co-B phase diagram. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:358 / 362
页数:5
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