钨合金在高速加载条件下的动态力学性能和失效机理  

Dynamic Properties and Failure Mechanism of Tungsten Heavy Alloy under High-Speed Loading

作　　者：范景莲[1] 刘涛[1] 成会朝[1] 黄伯云[1] 

机构地区：[1]中南大学粉末冶金国家重点实验室,湖南长沙410083

出　　处：《稀有金属材料与工程》2006年第6期841-844,共4页Rare Metal Materials and Engineering

摘　　要：钨合金与贫铀弹相比,在穿甲过程中由于形成“蘑菇头”而不能形成很好的绝热剪切带而使其穿甲性能不及贫铀弹。钨合金在高速冲击加载下的动态力学性能和失效决定着钨合金穿甲性能,为此,本文综述了十多年来国内外对钨合金在高速冲击加载下的动态力学性能和失效机理的研究现状。Tungsten heavy alloy is very attractive as a kinetic penetrator due to its high density, high strength and ductility. However, in comparison with a depleted uranium penetrator, its penetration efficiency is low due to the formation of ＂mushroom-like-head＂, but forming a localized adiabatic shear band. The dynamic properties and the failure under high strain rate determined their penetration efficiency. The overviews on the dynamic properties and failure mechanism researched in the world are presented in this paper.

关 键 词：钨合金 动态力学性能 失效 

分 类 号：TG115.5[金属学及工艺—物理冶金]