Nb/304L爆炸复合板界面组织分析  

Microstructure Analysis of the Explosive Cladding Interface of Nb/304L

作　　者：吴金平[1] 杨英丽[1] 赵恒章[1] 林桥[1] 赵彬[1] 郭荻子[1] 苏航标[1] 

机构地区：[1]西北有色金属研究院,陕西西安710016

出　　处：《稀有金属材料与工程》2008年第A04期634-637,共4页Rare Metal Materials and Engineering

摘　　要：采用爆炸复合的方法制备出Nb/304L爆炸复合板,通过金相显微镜、扫描电镜、能谱、显微硬度等实验手段,分析了爆炸复合界面的组织形貌及成分。结果表明:控制适当的爆炸复合参数可获得Nb/304L爆炸复合界面的波状结合。在界面两侧,材料产生强烈的塑性变形并引起硬度的升高。在爆炸波两侧分布有射流形成的旋涡,爆炸界面易产生熔化层。熔化区及熔化层主要由铌及不锈钢熔化、冷凝下来的Fe-Nb-Cr-Ni合金组成,在熔化区内还夹有铌、不锈钢颗粒物。在爆炸复合界面上,元素间的扩散程度很小。Nb/304L stainless steel composite plate was fabricated by explosive welding. Microstructure and content distribution along the interfaces of the composite were studied by means of optical microscope （OM）, scan electron microscope （SEM） and energy spectrum （EDS）. It is found that the waveform bonding can be obtained when proper dynamic parameters of explosive cladding are subjected. The interfaces undergo severe plastic deformation, which leads the increase of hardness. There are molten regions on both sides of wave peak and molten layers in bonding interfaces. And there is no obvious element diffusion on the both sides of bonding interface.

关 键 词：Nb/304L复合板 爆炸复合 界面 

分 类 号：TG392[金属学及工艺—金属压力加工]