圧延チタンクラッド鋼の接合強度特性と界面性状

概要

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In order to produce a titanium clad steel plate by hot rolling process, the effect of insert metal, rolling conditions and oxidation of clad surface on the bonding strength and the microstructure of bonded zone were investigated. The following results were obtained. (1) The titanium clad steel inserted with ultra-low carbon steel, exhibits satisfactory bonding strengths, ductilities and weldabilities. (2) The bonding strength is dominated by the thickness of Fe-Ti intermetallic compound produced at bonding interface and the degree of interdiffusion between Fe and Ti. High bonding strengths with very small scatter band can be obtained in the thickness range of Fe-Ti compound of 0.2 to 0.3μm. (3) A lower bonding strength due to the oxidation on the surface to be bonded is not caused by the oxidized layer but mainly by the remarkable growth of intermetallic compound and, secondarily, by the formation of voids between Ti and steel.
社団法人日本鉄鋼協会の論文
1989-07-01