Controlling the hot rolling process requires a deep understanding of underlying metallurgical phenomena. Quantitative methods are paramount importance for achieving capability controlling microstructural evolution. Since final mechanical properties steel result from evolution in whole process, analysis microstructure provides an important input numerical simulations that can be used tailoring s...

In order to realize a better description of plastic flow behavior in the warm deformation process GH4149, GH4169 superalloy was compressed by Gleeble-3800 at temperature 700–900 °C and strain rate 0.01–10 s?1. The constitutive model established using artificial neural network (ANN) Arrhenius equation, accuracy compared. results show that average absolute relative error (AARE) ANN is 4.34%. AARE...

Abstract The flow behavior of a novel Cr-Si alloyed hot stamping steel (Cr-Si steel) at elevated temperature was investigated via isothermal compression tests on Gleeble-3500 thermomechanical simulator with range 600 ~ 900 ℃ and strain rate 0.1~10 s-1. Subsequently, the Arrhenius-type constitutive model, comprising compensation, established in accordance friction adiabatic heating corrected str...

Compression tests of a Mg-13Gd-4Y-2Zn-0.5Zr alloy were carried out on Gleeble-1500D thermo-mechanical simulator within temperature range 420–500 °C and strain rate 0.001–5 s–1 so that the corresponding flow behavior was investigated. The Zener-Hollomon parameter Z used in hyperbolic-sine-type equation to express relationships between peak stress, deformation rate. Work hardening, dynamic recove...

Hot deformation is one of the main technological stages products made from metallic materials. It strictly required to decrease costs developing optimized technologies at this stage without a significant in products’ quality. The present investigation offers an algorithm unite three different models predict hot behavior, fracture, and microstructure evolution. compression tension tests AISI 316...

The hot ductility of cast ATI® 718Plus® was assessed using the Gleeble thermo-mechanical simulator after being subjected to different homogenisation heat treatments. deteriorated significantly long-dwell treatments for 24 h at temperatures 1120 and 1190 °C as compared with those treated a short dwell time 4 same temperatures. observed deterioration related more extensive liquation along grain b...