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采用单辊快淬法制备Fe_(40)Co_(40)Zr_((10-x))Mo_xB_9Cu_1(x=0,2,4)系非晶合金,并对3种合金进行不同温度热处理。利用X射线衍射仪(XRD)、透射电镜(TEM)、差热分析仪(DTA)和振动样品磁强计(VSM)对合金的微观结构、热性能和磁性能进行测试分析。结果表明:Fe_(40)Co_(40)Zr_((10-x))Mo_xB_9Cu_1(x=0,2,4)3种合金第1个晶化峰的激活能随Mo含量的增加而减小,Mo的添加不利于合金的热稳定性。Mo含量的增加抑制了ZrCo_3B_2等化合物的析出,细化了结晶相的晶粒尺寸。Fe_(40)Co_(40)Zr_((10-x))Mo_xB_9Cu_1(x=0,2,4)3种非晶合金的矫顽力Hc均随退火温度的升高而逐渐增大。Mo的添加明显降低了合金的矫顽力。 相似文献
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ZuoBin Chen Xiong Jiang Zhu Zhou HanShan Xiao Yong Huang Bin Mou ZhongYun Xiao Gang Liu YunTao Wang 《中国科学E辑(英文版)》2008,51(7):827-841
Computational Fluid Dynamics (CFD) is an important branch of fluid mechanics, and will continue to play great roles on the
design of aerospace vehicles, exploration of new concept vehicles and new aerodynamic technology. This paper will present
the progress of CFD from point of view of engineering application in recent years at CARDC, including the software integration,
grid technique, speeding up of convergence, unsteady fluid computation-etc., and also give some engineering application examples
of CFD at CARDC. 相似文献
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