Effect of extrusion deformation on microstructure and mechanical properties of 5083 seamless tube
The microstructure and mechanical properties of 5083 seamless tube at different positions were analyzed by optical microscope,scanning electron microscope,X-ray diffractometer and room temperature tensile test.The influence of non-uniform deformation due to extrusion on the microstructure and mechanical properties was studied.Experimental results show that the non-uniform deformation of seamless tube extrusion has significant influence on the microstructure,the surface layer is completely recrystallized,the T/4 and T/2 positions are dominated by deformed structures and show partial dy-namic recrystallization,the texture types of T/4 and T/2 positions are basically the same,the texture strength at T/4 position is significantly higher than that at T/2,the tensile mechanical properties of T/4 and T/2 positions are basically the same.
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