学术
摘 要:
结合固体与分子经验电子理论（EET）和改进的TFD理论计算了不同成分钨合金的相空间及相界面处的价电子结构。结果表明,钨合金的强化机制与粘结相的价电子结构有着密切的关系。相对于纯钨,粘结相的共价电子个数有所增加,相界面处的电子密度和界面上可能的原子状态组数也大大提高,且降低了钨颗粒之间的连接,这是钨合金强化的本质原因。[著者文摘]
文章出处:
《稀有金属》-2007年31卷4期 -430-433页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
0258-7076（2007）04-0430-04
相关文章:
Electronic Structure Characterization for Strengthening of Tungsten Alloy
Wang Yahui,Li Yunkai,Li Yuqiu,Yin Jingjing（School of Material Science and Engineering,Beijing Institute of Technology,Beijing 1000081,China）
Abstract:
According to empirical electron theory of solid and molecules and the modified TFD theory,the valence electron structures of phase space and interface in different component tungsten alloys were calculated.The result showed that there was a closed relation between electron structure of cementation phase and strengthening effect on tungsten alloy.The cementation phase increased the electron density on the interphase,reduced the joining between tungsten grains.Cementation phase can increase the tensile strength.[著者文摘]
Key words:
tungsten alloy;strengthener;valence electron structures
基金资助:
总装备部预研基会瓷助项目
更多>>免费文章
cqvip.com