Plastic deformation of metal material is higher than the recrystallization temperature carried out. In the field of plastic processing metal known thermal processing. Hardening and softening metal interior materials have occurred in the thermal processing, but softened play a leading role. Reply occurred and recrystallization softening process has five types: dynamic recovery and dynamic recrystallization during plastic deformation of the metal takes place inside; static recovery insulation or cooling process occurs within the deformation or deformation after a gap of time in the static recrystallization and (ie, under dynamic conditions nucleation, growth under static conditions). Inconel 601 Bars Since the recovery and recrystallization softening effect, deformation resistance of metallic materials (see the deformation resistance of metals) decreased. After several repeated thermal deformation, the metal has a complete recrystallization tissue without signs of hardening, grain refinement, which greatly improved mechanical properties. And by changing the thermal processing parameters, such as the heating temperature, deformation, deformation temperature and strain rate to control the microstructure and properties of the workpiece. When grain recrystallized grains will grow at a slower cooling rate. 
    Due to the high temperature deformation, deformation resistance material is small, plastic, and is conducive to forming process, high production efficiency, so the thermal deformation is the main Inconel 625 Bars method of metal plastic processing, thermal deformation method often used are rolling, forging and extrusion. Thermal deformation of the metal is usually limited to the initial process, then, a large blank size, the requirements of dimensional accuracy of the workpiece is wider. Many products have to be followed by cold deformation, surface quality and dimensional accuracy can be further improved. For the initial ingot thermal deformation in the total deformation reaches more than 75%, due to thermal deformation caused by recrystallization can completely eliminate the original cast structure, to form a uniform and fine grains, the plastic metal improved conducive to subsequent cold deformation or thermal deformation. Inconel 600 Bars Impurities contained in a metal, in particular of harmful non-metallic inclusions and brittle, thermal deformation after several refinement, and more uniform distribution. Furthermore, the compressive stress in the most dominant thermal deformation, it will enable the small ingot cracks, bubbles or get loose and other welding, the material becomes more solid after deformation. 
     The disadvantage is that the thermal deformation: billet preheating energy consumption, high cost sometimes need to repeatedly re-heated (e.g. forging) in order to hold the workpiece can be performed Inconel 690 Bars in a suitable thermal processing temperature range; uniform heating of large-size blanks are more difficulties; uneven mechanical properties of the resulting dough differences and deformed state; burning long billet is heated at a high temperature also affects the generation of the material timber; metal embrittlement due to oxidation, and the surface segregation of chemical components, is caused by heat distortion product of poor surface quality as well as cracks, damaged one of the Inconel 617 Bars sources; with the stress and deformation of the combined effects of high temperatures, so that the wear and deformation tools increases, the friction of hard iron oxide exacerbated tool wear. In the long-term effects of smaller cyclic stress, thermal fatigue is caused by the tool prematurely scrapped reasons. Therefore, the cost of thermal deformation of the product, tooling costs proportion is significant.
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