高压物理学报2025，Vol.39Issue(10)：110-120,11.DOI:10.11858/gywlxb.20251041
镍/304不锈钢爆炸焊接试验及数值模拟
Experimental Study and Numerical Simulation of Explosive Welding of Nickel/304 Stainless Steel
卓然 1谢兴华 2汪灿2
作者信息
- 1. 安徽理工大学安全科学与工程学院,安徽 淮南 232001
- 2. 安徽理工大学化工与爆破学院,安徽 淮南 232001
- 折叠
摘要
Abstract
Ni/304 stainless steel laminated composite materials were successfully fabricated using explosive welding to investigate the microstructural characteristics and the formation mechanism of interface.The microstructural characteristics of the composite plate were analyzed using scanning electron microscope(SEM),energy-dispersive spectroscopy(EDS),and electron backscatter diffraction(EBSD).The mechanical properties of the composite plate were evaluated through tensile tests.Additionally,the smooth particle hydrodynamics(SPH)method was employed to numerically simulate the high-speed oblique impact welding process.The results indicate that the Ni/304 stainless steel composite plate exhibits a continuous wave bonding interface,which is consistent with the numerical simulation results.The variation in interface density promotes elemental diffusion,while the bending of grains reflects the material movement characteristics during wave formation.The recrystallization process is influenced by dislocation density,leading to the formation of fine-grained regions at the Ni/304 stainless steel interface.The tensile strength and elongation at fracture of the composite plate reach 705 MPa and 24%,respectively.The high bonding strength is primarily attributed to the formation of a continuous wavy interface structure.关键词
爆炸焊接/光滑粒子流体动力学模拟/力学性能/结合界面/微观形貌Key words
explosive welding/smoothed particle hydrodynamics simulation/mechanical properties/bonding interface/microtopography分类
数理科学引用本文复制引用
卓然,谢兴华,汪灿..镍/304不锈钢爆炸焊接试验及数值模拟[J].高压物理学报,2025,39(10):110-120,11.
