نتایج جستجو برای: Warm deformation
تعداد نتایج: 99866 فیلتر نتایج به سال:
Laboratory hot torsion testing technique was carried out on one plain low carbon steel and two plain low carbon Nb and Nb-Ti micro alloyed steels to study the effects of chemical composition, micro alloying addition, on the dynamic softening and grain refinement of ferrite during warm deformation. Deformation schedule was conducted within two phase region (i.e. between Ar3-Ar1). The physical pr...
many efforts have been made to model the the hot deformation (dynamic recrystallization) flow curves of different materials. phenomenological constitutive models, physical-based constitutive models and artificial neural network (ann) models are the main methods used for this purpose. however, there is no report on the modeling of warm deformation (dynamic spheroidization) flow curves of any kin...
Many efforts have been made to model the the hot deformation (dynamic recrystallization) flow curves of different materials. Phenomenological constitutive models, physical-based constitutive models and artificial neural network (ANN) models are the main methods used for this purpose. However, there is no report on the modeling of warm deformation (dynamic spheroidization) flow curves of any kin...
The main contribution of the present work is to investigate the capability of exponential-type constitutive equationto model the warm deformation flow curves of a eutectoid steel in the temperature range of 620-770 °C andat the strain rates in the range of 0.01-10 s-1 conducted on a Gleeble-1500 thermomechanical simulator. Warmdeformation in this temperature range f...
the main contribution of the present work is to investigate the capability of exponential-type constitutive equationto model the warm deformation flow curves of a eutectoid steel in the temperature range of 620-770 °c andat the strain rates in the range of 0.01-10 s-1 conducted on a gleeble-1500 thermomechanical simulator. warmdeformation in this temperature range facilitates the occurrence of ...
در این پایان نامه در ابتدا دلایل شکل گیری آلاینده ها در شرایط cold start و warm up و راهکارهای کاهش آنها ارائه می شود. در ادامه، بهینه سازی فرایند شکل گیری مخلوط هوا و سوخت از طریق کنترل دقیق نسبت هوا به سوخت بعنوان یکی از بهترین راهکارهای عملی کاهش آلاینده ها در شرایط cold start و warm up با جزئیات کامل مورد بررسی قرار می گیرد. مدل بدست آمده (برای موتور پیکان انژکتور)، شبیه سازی می شود و نتایج...
Introduction: This study aimed to investigate the influence of neglect and the effect of Prism Adaptation (PA) combined with continuous Theta-Burst Transcranial Magnetic Stimulation (cTBS) on the art constructive errors of painting rehabilitation of stroke patients with neglect. Methods: Fourteen patients with neglect and art constructive errors of painting secondary to stroke were randomly as...
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