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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 17    Special 1    November 2007

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Micro-analysis of explosive cladding interface of Nb/304L
WU Jin-ping(吴金平), YANG Ying-li(杨英丽), ZHAO Heng-zhang(赵恒章), YIN Jing-ou(殷京瓯),
LIN Qiao(林  桥), ZHAO Bin(赵  彬), GUO Di-zi(郭荻子), SHU Hang-biao(苏航标)

Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China
 
Received 15 July 2007; accepted 10 September 2007         
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Abstract:Nb/304L stainless steel composite plate was fabricated by explosive welding. Microstructure and content distribution along the interfaces of composite were studied by optical microscope (OM), scanning electron microscope (SEM) and energy spectrum (EDS). The results show that the waveform bonding can be obtained when proper dynamic parameters of explosive cladding are subjected. The interfaces undergo severe plastic deformation, which leads to the increase of hardness. There exist 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.

 

Key words: Nb/304L; explosive cladding; interface

ISSN 1672-7029
CN 43-1423/U

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