35CrMnSi钢弹体对钢板侵彻失效行为的实验研究  

Failure behavior of 35CrMnSi fragment penetrating steel plate

作　　者：李硕[1] 王志军[1] 孙璐璐[2] 赵晓旭[3] 

机构地区：[1]中北大学机电工程学院,山西太原030051 [2]海军航空工程学院青岛校区,山东青岛266041 [3]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《兵器材料科学与工程》2015年第1期18-21,共4页Ordnance Material Science and Engineering

摘　　要：为研究35CrMnSi在强动载荷下的失效行为,通过弹道实验获得不同速度（0.469~1.280 km/s）下35CrMnSi破片侵彻钢板后的破坏模式,利用扫描电子显微镜（SEM）对失效断口形貌进行观察。结果表明：侵彻速度在0.469 km/s以下时,破片仅发生墩粗变形;在0.574~1.280 km/s时,破片发生断裂失效;大于0.574 km/s时,破片主要表现为脆性的解理型穿晶断裂,且断口存在局部融化、绝热剪切带、熔融韧窝和不规则的颗粒。Failure behavior of 35CrMnSi under dynamic loading was studied. The damage mode of 35CrMnSi fragment penetrating steel plate was obtained by ballistic experiment under different velocity from 0.469 km/s to 1.280 km/s. The fractography was observed by SEM. The experimental results show that,when impacting velocity is lower than 0.469 km/s,the damage mode of fragment is just head deformation. When the velocity is between 0.574 km/s and 1.280 km/s,fracture failure occurs. When the velocity is higher than 0.574 km/s,the main failure mode of 35CrMnSi is brittle cleavage transgranular fracture,and there exists partial melting,adiabatic shear band,melting dimples and irregular molten particles in fracture.

关 键 词：35CRMNSI钢 侵彻 失效行为 

分 类 号：TJ04[兵器科学与技术—兵器发射理论与技术]