【摘 要】
：
In order to obtain a combination of oxidation resistance and mechanical property,in situ hybrid TiC particles and TiB whiskers reinforced Ti6Al4V((TiCp+TiBw)/Ti64)composites with a novel network micro
【出 处】
：
第六届海内外中华青年材料科学技术研讨会暨第十五届全国青年材料科学技术研讨会
论文部分内容阅读
In order to obtain a combination of oxidation resistance and mechanical property,in situ hybrid TiC particles and TiB whiskers reinforced Ti6Al4V((TiCp+TiBw)/Ti64)composites with a novel network microstructure are successfully fabricated by two-step low energy milling and reaction hot pressing(RHP).TiCp and TiBw reinforcements with different volume ratio are in situ synthesized around the large Ti64 matrix particles,and subsequently formed into hybrid TiCp and TiBw network microstructure.Moreover,TiC particles self-assemble to compact TiCp wall in the network boundary;while TiB whiskers grow across TiCp wall as dowel connectors which can effectively link the adjacent Ti64 matrix particles.The bending strength of the novel composites increases from 668MPa to 962MPa,while the oxidation resistance decreases with increasing volume fraction of TiBw from 0.5％to 2％.The oxidation resistance of the composites can be effectively improved by TiCp reinforcement distributed by network microstmcture.In addition,the high temperature tensile strength of the hybrid composites is clearly higher than that of TiBw/Ti64 composites.
其他文献
Mailyard Group accumulates rich experiences during the process of turning from OEM to independent brand establishing.Mailyards brand positioning is in middle and high end market of commercial and poli
This study presented reminiscence views of the users (indigenous and contemporary) of Adire on the past,present and future use of the hand crafted textile fabric.The purpose is to capture how the use
Antimicrobial textiles have been developed to control bacteria proliferation.Although some methods have been proposed to assess their antimicrobial activity,wound dressings are not referred on the met
Basalt yarn,Aramid yarn and PTFE yarn are the three common yarns used in the field of high temperature filtration,structure and property had a significant impact on these yarns,so in this paper,observ
It is a significant issue to overcome the concentration-quenching effect of the small fluorescent probes and maintain the high fluorescent efficiency at high concentration for sensitive and selective
Properties of a material are determined by its structure,which has spurred lots of interest in attempts to produce new structures for achieving performance improvement of the material.In light of this
We report the formation of deformation twins in nanocrystalline Cu alloys with medium stacking fault energy via the propagation of □ 3 {112} incoherent twin boundaries(ITBs)that are nucleated from gra
离子交换膜是一类重要的特种分离膜,可实现离子的定向与/或选择性传输,在清洁生产与分离、水净化、废液治理、电化学能量转化与存储等领域有着广泛的应用。在电化学能源转换与储存器件(如氯碱工业、水电解制氢、燃料电池发电、液流电池等)中,离子交换膜起到高效定向输运离子和隔离反应物的作用,是提高能量转化与储能效率的关键材料。目前电化学器件用的离子交换膜主要有两类,即传导H+的阳离子交换膜与传导OH-的阴离子交
通过EBSD技术对冷轧退火后的Fe-18Cr-18Mn-0.63N高氮无镍奥氏体不锈钢的晶界特征分布(GBCD)进行分析,同时通过草酸电解浸蚀试验和硫酸-硫酸铁腐蚀试验研究了GBCD优化对实验用钢晶间腐蚀(IGC)性能的影响.研究结果表明：经过7％的冷轧变形+1423K保温10min的退火处理后,样品的低∑重位点阵(CSL)晶界从固溶态的47.3％增加到现在的83.3％.GBCD优化处理后,样品的
Erosion-wear of QAl9-4 aluminum bronze in liquid-solid two-phase flow(3.5％NaCl+ SiC)was investigated by using a rotating disk system.The influences of impacting speed and size of SiC on the surface mo