采用电铸法制备镍药型罩,利用X射线衍射仪、扫描电镜研究电铸镍药型罩的微观组织,通过拉伸试验研究电铸镍药型罩的力学特性.结果表明:在无添加剂时,随着电流密度的增大,晶粒尺寸变大；加入添加剂后,晶粒细化,可得到超细晶镍药型罩.脉冲电铸制备的药型罩表面光滑,晶粒尺寸约为500 nm.电铸镍药型罩中存在强烈的<100>丝织构,电铸参数的改变对镍药型罩织构影响较小.力学特性研究表明其屈服强度为256 MPa,伸长率可达7.4％.断口形貌观察发现电铸超细晶镍的断裂属于延性断裂.
参考文献
| [1] | Petit J;Jeanclaude V;Fressengeas C .Breakup of copper shaped-charge jets: Experiment, numerical simulations, and analytical modeling[J].Journal of Applied Physics,2005(12):23521-1-23521-10-0. |
| [2] | 王铁福.药型罩材料的晶粒度对射流性能的影响[J].高压物理学报,1996(04):291. |
| [3] | Tian WH.;Fan AL.;Gao HY.;Luo J.;Wang Z. .Comparison of microstructures in electroformed copper liners of shaped charges before and after plastic deformation at different strain rates[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):160-167. |
| [4] | FAN Ai-ling,LI Shu-kui,TIAN Wen-huai,WANG Fu-chi.Comparison of microstructures in electroformed and spin-formed copper liners of shaped charge undergone high-strain-rate deformation[J].中国有色金属学会会刊（英文版）,2007(06):1447-1450. |
| [5] | MICROSTRUCTURAL CHARACTERISTICS ASSOCIATED WITH HIGHSTRAIN-RATE PLASTIC DEFORMATION IN THE ELECTROFORMED COPPER LINER OF SHAPED CHARGES[J].金属学报（英文版）,2005(05):620-626. |
| [6] | Ailing Fan,Wenhuai Tian,Qi Sun,Baoshen Wang.Microstructure and penetration behavior of electroformed copper liners of shaped charges during explosive detonation deformation[J].北京科技大学学报（英文版）,2006(01):73-77. |
| [7] | 雷卫宁,朱荻,徐惠宇,曲宁松.纳米晶脉冲电铸的试验研究[J].机械科学与技术,2002(06):975-978. |
| [8] | 王庆富,张鹏程,王晓红,任大鹏,郎定木,张延志.铀表面脉冲电镀纳米镍镀层的组织结构研究[J].表面技术,2004(01):18-20. |
| [9] | F. Dalla Torre;P. Spatig;R. Schaublin .Deformation behaviour and microstructure of nanocrystalline electrodeposited and high pressure torsioned nickel[J].Acta materialia,2005(8):2337-2349. |
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