Abstract This paper considers the effect of processing route on final microstructure hardness and tensile behavior a 980 MPa third generation advanced high strength steel (3G-AHSS). Of particular interest is use hot stamping thermal schedule that mimics quench partition (Q&P) heat treatment process normally used to produce Q&P grade sheet. For comparison purposes, samples were also prod...

This article reports the flow stress behaviour of ASTM A335 P92 steel. Uniaxial isothermal compression experiments were conducted to examine hot deformation steel in a Gleeble® 3500 thermal–mechanical simulator. The test conditions 0.01–10 s−1 strain rate and 850–1000 ℃ temperature. Constitutive equations processing maps developed used describe process. results showed that stress–strain curves ...

Abstract This study reports on ultra-high temperature tensile tests (1300–1480 °C) performed dual-phase (DP) advanced high-strength steels utilizing a Gleeble 3500 thermo-mechanical simulator. The thermomechanical results of both as-cast (AC) and transfer-bar (TB) material is presented, as well three different sample geometries, to better comprehend the effect distribution stress localization r...

The microstructure of forged products significantly impacts their properties, and defects or carbide distribution are not visible to the naked eye. Isothermal compression tests on M50 steel with a Gleeble 3500 tester were conducted study behavior during forging. Tests examined hot deformation within temperature range 900–1200 °C strain rate 0.01–10 s?1. Power dissipation efficiency (?) flow ins...

Fine-grained steels, which belong to the HSLA (High-Strength Low-Alloy) group of are increasingly used for parts statically and dynamically loaded constructions. Due thermal effect welding, combined with inherent stiffness clamping part, residual stresses generated in HAZ (heat-affected zone) affect fatigue life sub-weld entire construction. In this article, a specific temperature cycle measure...

Varying contents of carbon, titanium and boron were used in the base steel composition 0.30 wt% Si, 2.0 Mn, 0.006 S, 0.03 Nb, 30–35 ppm N. Hot ductility tests performed with Gleeble-3800, after sample was in-situ melted, solidified, cooled to test temperature. Investigation completed thermodynamic kinetic simulations. The best results obtained for steels containing 58–100 B 35 Ti. They showed v...

In this study, a new alloy material Mg-Zn-Zr (ZK60) was designed for the connecting rod. It found that blanks sampled along vertical direction of an extruded bar crack during roll forging process. The microstructure and precipitates were observed analyzed using optical microscope (OM), scanning electron (SEM) x-ray diffraction (XRD). result showed Zn, Zr, MnZn2 elongated extrusion direction. me...

Round tensile test specimens of an age-hardened CuCr1Zr alloy were subjected to direct electrical current heating in a Gleeble thermal–mechanical simulator at 800 °C. The mechanical properties monitored by the Vickers hardness test, and changes grain structure examined light metallography. A quantitative analysis size distribution fine precipitates during annealing was carried out using transmi...

In order to develop the high-temperature forging process of high-quality 20MnCr5(SH) gear steel, according physical characteristics hot deformation 20MnCr5(SH), single pass pressing test was carried out in temperature range 930–123 °C and strain rate 0.002–2 s?1 by using a Gleeble-1500D thermal simulator. The stress-strain curve analyzed confirmed microstructure analysis. dynamic recrystallizat...