Hot plasticity of microalloyed pipe steel in continuous casting and hot rolling

Hot Axial Rotary Forging of Flanges Standard EN 1092

“…Manufacturing a finished flange according to the standard pr EN 1092-1 from a rotary forged billet with incomplete filling of the flange profile along the inner diameter is possible with an increase in the allowance in the lower part of the flange or an additional operation of cold rolling from the flange end, which can, in addition to filling the profile, improve the metal structure of the thick part of the flange [17,18,19,20,21,22].…”

Effect of Structure Factor on High-Temperature Ductility of Pipe Steels

“…When the crystallization is accompanied by additional impacts on the metal, for example, in the form of thermal or deformation cycles typical for the skin of solidified metal in the zone of secondary cooling in continuous casting machines, the temperature range of the ductility drop widens and deepens [5 -7]. It has been shown in [7,8] that ductility drops typical for the stage of cooling of steel in a continuous casting machine do not manifest themselves during subsequent hot rolling, and the studied pipe steels possess high ductility.…”

“…When the crystallization is accompanied by additional impacts on the metal, for example, in the form of thermal or deformation cycles typical for the skin of solidified metal in the zone of secondary cooling in continuous casting machines, the temperature range of the ductility drop widens and deepens [5 -7]. It has been shown in [7,8] that ductility drops typical for the stage of cooling of steel in a continuous casting machine do not manifest themselves during subsequent hot rolling, and the studied pipe steels possess high ductility.The aim of the present work was to test the methods of grain refinement in the process of cooling of the skin of a slab in a continuous casting machine for raising the ductility of the continuously cast metal and to study the changes in the morphology of nonmetallic inclusions in heating for rolling and the effect of microalloying with boron and titanium on the ductility of steels. …”

Improving the Properties of Aluminum Alloy System Al-Cu-Mg, Subjected to Hardening and Severe Plastic Deformation

“…Modern approaches to improve the properties of the alloys are grinding their grain structure to ultrafine-grained (UFG), and nanocrystalline (NC) state by such methods of severe plastic deformation (SPD) as HPT [1][2][3], equal-channel angular pressing (ECAP) [4][5][6], rolling [7][8][9][10][11][12], friction welding [13][14][15], selective laser melting [16][17][18][19][20].…”