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Microstructure And Properties Of BFe30-1-1/16MnR Explosive Welding Clad

Posted on:2007-08-05Degree:MasterType:Thesis
Country:ChinaCandidate:F B LiFull Text:PDF
GTID:2121360185985224Subject:Materials Processing Engineering
Abstract/Summary:PDF Full Text Request
Explosive welding is a very useful advancing high tech for metals welding and metallic composite production by using explosives as energy resource .Explosive welding with unique advantage is applied widely to national defense and civil industry, and has great developing potency. In this paper the best welding parameters was determined by theoretical calculation and step testing method, and the Explosive welding of BFe30-1-1/16MnR had been carried out. The microstructure of BFe30-1-1/16MnR clad interface zone was analyzed By modern examination techniques, such as OM, EBSD,SEM, the mechanical properties had been tested referring standard GB/T6396-1995. The results shown that every performance accords with the technical standard involved with copper-steel clad plates. The processing hardening effect produced in clad interface is a common characteristic based on the microscopic hardness analysis after explosive welding. The hardness increase of clad interface indicate that the structure and properties of the clad interface zone have been changed and are very different from the basic materials. The BFe30-1-1/16MnR clad interface appeared like continuous and cyclic waves on a macro scale. There were some melted blocks or layer at the waved interface. After explosive loading lots of parallel bands, which were identified as ASBs. However, there were no ASBs on the side of BFe30-1-1.There is diffusion between Cu and Fe in clad interface, Fe diffusion length is increasing along with clearance.
Keywords/Search Tags:BFe30-1-1/16MnR clad, explosive welding, clad interface, microstructure, properties
PDF Full Text Request
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