Analysis on Tensile Fracture of HRB400 Rebar Welding Joint

YANG Yong

Physics Examination and Testing ›› 2014, Vol. 32 ›› Issue (3) : 28-31.

Physics Examination and Testing ›› 2014, Vol. 32 ›› Issue (3) : 28-31.
Defect Analysis

Analysis on Tensile Fracture of HRB400 Rebar Welding Joint

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Abstract

By means of optical microscopy and scanning electron microscopy (SEM) the tensile fracture of HRB400 rebar after welding joint was analysed. Experimental results showed that the partially unwelded joint is the main reason of tensile fracture. Through strictly conducting welding process, eliminating or reducing gap part, the tensile fracture of HRB400 rebar joint could be effectively prevented.

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Key words:HRB400 rebar / Joint fracture / microstructure / mechanical property

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YANG Yong. Analysis on Tensile Fracture of HRB400 Rebar Welding Joint[J]. Physics Examination and Testing, 2014, 32(3): 28-31

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