High‐energy synchrotron X‐ray small‐angle scattering (SAXS) is used to study the precipitate development during hot rolling and cooling of a commercial Ti–Nb micro‐alloyed, high‐strength, low‐alloy (HSLA) steel. To precipitation conditions, Gleeble dilatometer trials are made. Samples then studied at room temperature using SAXS in conjunction with transmission electron microscopy (TEM). TEM det...

2205 duplex stainless steel suffers poor hot workability, especially whe1981hot-deformed. This investigation aims to determine the strain rate’s effect on material’s dynamic recrystallization after heat treatment. Secondly, ascertain critical at which occurs. The as-rolled material was subjected treatment 1340 °C for some time. After treatment, yielded equiaxed austenite morphology used this in...

Solid-state bonding is widely involved in metal forming and joining applications. The quality of the bonded interface key to final integrity joint or formed structure; thus, its controllability predictivity have been focus over decades. bond jointly determined by oxide behaviour microstructure evolution. In this study, a new four-stage model, considering cohesion different contacting pairs (oxi...

This article reports on the comparative study of hot deformation behaviour virgin (steel A) and rejuvenated heat treatment creep-exhausted B) P91 steels. Hot uniaxial compression tests were conducted two steels at a temperature range 900–1050 °C strain rate 0.01–10 s−1 to total 0.6 using Gleeble® 3500 equipment. The results showed that flow stress largely depends conditions. for increased with ...

abstract one of the major factors on the amount of water resources is river flow which is so dependent to the hydrologic and meteorologic phenomena. simulation and forecasting of river flow makes the decision maker capable to effectively manage the water resources projects. so, simulation and forecasting models such as artificial neural networks (anns) are commonly used for simulation and predi...

this paper presents theoretical and numerical state-of-the-art information in the field of hygro-thermo-mechanical deformation simulation in structural concrete. the aspects discussed include coupled hygro-thermo-mechanical performance of porous materials including concrete, multi-scale simulation of concrete properties especially the volumetric and structural deformation performance, and the m...

conclusions using the simulation as a decision making tool helps us to decide how we can reduce outpatient's waiting time. comparison of outputs of this scenario and the based- case scenario in simulation model shows that combining physician's work time changing with patient's admission time changing (scenario 9) would reduce patient waiting time about 73.09%. due to dynamic and complex nature ...

Due to a combination of advantages, high-performance steel components, especially for automotive manufacturing applications, are generally forged parts. In the forging industry, bainitic steels being increasingly used, because they can reduce processing chain and energy consumption. this case, microstructure be obtained immediately after forging, with controlled cooling, without any subsequent ...

In this study, the austenite transformation behaviour in a medium-Mn (MMn) steel is investigated during heat treatments that replicate those occurring low-temperature hot stamping (LTHS), with aim of better understanding to optimise heat-treatment design. The austenitisation and critical phase temperatures LTHS heating process their dependence on conditions are using dilatometry Gleeble 3800 th...

This study reports the hot workability of two P92 creep-resistant steels with different chromium and tungsten contents, all within ASME specification. These are used in manufacturing modern power plant boiler pipes. Uniaxial compression tests were done using a Gleeble® 3500 thermal-mechanical equipment. The test conditions were: deformation temperature 850–1000 °C strain rate 0.1–10 s−1. Experi...