侵彻环境下两种钨合金的细观响应特性(英文)  

The Meso-Structure Responses of Two W-Alloy under Intensive Impact and Penetration

作　　者：张宝平[1] 黄风雷[1] 焦彤[1] 朱长军[1] 

机构地区：[1]北京理工大学爆炸灾害预防及控制国家实验室,北京100081

出　　处：《宁波大学学报（理工版）》2003年第4期447-453,共7页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：Project supported by the National Natural Science Foundation of China(No.10172075); Ninsbo Natural Science Foundation for Young Sci-entist(No.02J20102-13)

摘　　要：本文实验发现具有较大密度和较高速度的93W钨合金长杆模拟弹的穿靶深度反而比密度较小,速度较低的90W钨合金长杆弹的穿靶深度小.针对这一现象,本文从两种材料在侵彻环境下的细观响应特性的差异上给出了有实验根据的合理分析,结论是90W在侵彻环境下较易于形成绝热剪切带,从而在弹头部发生“自锐化”效应所致.It was found in penetration experiments that the penetrating depth of 93W-alloy Long-rod penetrator with higher velocity is lower than that of the lower velocity long-rod penetrator made of 90W-alloy. On the basis of the observation and analysis to the meso-structure responses of both the soft-recovered penetrators, the essential reason founded is that the 90W-alloy is easier to form adiabatic shear bands and then to make the head of penetrator generating self-sharpen effect.

关 键 词：侵彻 高速碰撞 钨合金 绝热剪切带 细观响应特性 穿靶深度 “自锐化”效应 

分 类 号：TG146.411[一般工业技术—材料科学与工程]