【摘 要】
：
FeAl/TiC composites were fabricated by reactive hot pressing blended elemental powders.The effects of TiC content,composition of the binder phase and Ni alloyin
【机 构】
：
State Key Laboratory of Powder Metallurgy
论文部分内容阅读
FeAl/TiC composites were fabricated by reactive hot pressing blended elemental powders.The effects of TiC content,composition of the binder phase and Ni alloying on the densification process and mechanical properties of the composites were studied.The results show that the densities of the composites decrease with the increase of TiC content.Closely related with their porosities and flaw densities,the hardness and bend strength of the composites show peak values with the increase of TiC content.Higher content of Al in the binder phase was beneficial to densification,however it deteriorates the mechanical properties of the composites.The addition of Ni significantly improves the densities of the composites by enhancing matter transfer in the binder phase.By alloying with Ni,the mechanical properties of the composites are greatly improved due to the increase of the density,together with solid solution-strengthening the binder phase and promoting ductile fracture of FeAl.
其他文献
A thermodynamic model was developed to predict the distribution behavior of Cu,Fe,S,O,Pb,Zn,As,and the heat balance in a lead blast furnace.The modeling results
The finite element polycrystal model (FEPM) was extended and applied to simulate the development of the cold rolling textures of matrix aluminum in deformation
The co-precipitation method followed by ultrasound and heat treatment is a common way to prepare below 100 nm sized hydroxyapatite nanoparticles for biomedical
The surfaces of the micron-sized HA particles were modified by in situ copolymerization of vinyl triethoxyl silane (VTES) and styrene (St). Then, the modified H
The microstructure of the prepared porous bioceramic material, including surface porosity and apparent contact area with the artificial mucus film are computed
The analytical electron microscopy (AEM) was employed to observe the intratissuelar distribution of polysorbnte 80 coated nanoparticles in brain with copper chl
To separate cadmium ions from aqueous solution efficiently,micellar-enhanced ultrafiltration(MEUF)of hollow ultrafiltration membrane was used,with sodium dodecy
本文针对抽油机设备损坏导致停井甚至上作业的问题,提出了加强抽油机井地面设施的保修,减少因地面设备损坏而造成的停井及躺井,节约费用及保证产量的平稳运行.
The dynamic restoration behavior of 99.99% polycrystalline aluminum was investigated.The deformation was carried out by compression test at 533-773 K and initia
A new biomimetic bone tissue engineering scaffold material, nano-HA/ PLGA-( PEG- ASP )n composite, was synthesized by a biologically inspired self assembling ap