93钨合金断裂特性研究  

STUDIES ON THE FRACTURE BEHAVIOUR FOR 93 TUNGSTEN ALLOY

作　　者：张万甲[1] 杨中正[1] 

机构地区：[1]中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室

出　　处：《高压物理学报》1995年第4期279-288,共10页Chinese Journal of High Pressure Physics

摘　　要：用一级压缩气体炮加载技术与锰铜压阻传感技术结合，实验研究了９３钨合金的层裂特性。实时测量实验证明，断裂强度与拉抻应变速率相关，也与合金元素、材料制备工艺相关。软回收样品内部损伤的金相和扫描电镜分析表明，９３钨合金的层裂是以钨晶粒破裂为主的脆性断裂，损伤度也与拉伸应变速率相关。Studies on the spallation behaviour for 93 tungsten alloy have been performed witha compressed gas gun and a manganin piezoresistance gauge technique. It is found that tensilestrain rate,alloy elements and metallurgical technology can significantly influence the fracturestrength of this material.The metallographic and SEM examination of the recovered specimenshow that 93 tungsten alloy spalls in a brittle way,the dominant fracture mode being cleavage oftungsten grains. Moreover,the interior damage degress of the tungsten alloy target is related tothe tensile strain rate.

关 键 词：钨合金 层裂 损伤 脆性断裂 

分 类 号：TG146.411[一般工业技术—材料科学与工程]