Abstract
This work aims to study the effect of cold forming on the texture evolution during the manufacturing of rectangular hollow sections. Conventional TMCP steel and a direct-quenched steel in 420 MPa strength level are compared. The texture was characterized at the centerline (S=0) and both surfaces (S=0.8) for base material, four flat side and one corner samples of the rectangular hollow section. The results show that the flat sides of both steels have the minor intensity of ∼{554}<225> and ∼{112}<110> texture components and an intense texture component of ∼{001}<110> in the centerline. Generally, any significant difference between four flat size samples was not found and texture intensities of the conventional TMCP steel were slightly sharper compared to direct-quenched steel. The most important change is observed with the inner corner samples, where the randomly oriented texture in the base material and flat side samples changes to the {110}<111>/<112> shear texture components.
Highlights
Formed steel sections are widely used in building construction due to their relatively high strength and stiffness properties
XRD analysis XRD transformation textures were determined at the surfaces (S=0.8) and centerlines (S=0) for base materials and flat side and corners of rectangular hollow section specimens, except for the centerline of TMCP base material
As no significant difference between the four flat size specimens was found, only one flat side (FS3) ODF sections are shown in figures 3 (TMCP steel) and figure 4 (DQ steel)
Summary
Formed steel sections are widely used in building construction due to their relatively high strength and stiffness properties. The work hardening caused by plastic deformation during forming resulted in enhancing the strength and hardness deteriorating the elongation and toughness. The main rolling texture components which are typically developed when austenite is deformed under plane strain conditions below its non-recrystallization temperature can be expressed as {112}, {110},{111} and {554}, with minor amounts of {112} and {100}. Shear components can be formed when austenite is deformed by rolling below its non-recrystallization temperature by developing their most popular orientations of {112}, {110} and {110} [4]. As the continuation of that work, the aim of this study is to compare the microstructure and texture properties of that two steels which were produced
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
