A combination of experimental and numerical approaches was applied for constructing a dynamic model thermomechanical processing, which used simulating laboratory rolling cooling, designing cooling path to enable phase transformation from austenite ultrafine ( ∼ 50–100 nm) bainitic laths. Physical simulation experiments were calibrating the models. Hot water conducted they numerically simulated....

Purpose: The aim of the paper is to design heat treatment conditions of dual-phase steel and to determine their influence on the structure and mechanical properties of steel. Design/methodology/approach: The heat treatment of the C-Mn steel in order to obtain a dual-phase ferritic – martensitic structure of desirable phase fractions was realized. To investigate the influence of heat treatment p...

Abstract Nanostructured titanium plays an important role in biomedical applications, especially dentistry, as the nanostructured surface promotes bone cell growth and simultaneously prevents bacterial colonization. microstructures can be obtained through Severe Plastic Deformation processes. In this paper, thermomechanical processing via Equal Channel Angular Swaging for continuous production o...

This paper provides an overview on obtaining low-carbon ultra-fine grained dual-phase steels through rapid intercritical annealing of cold-rolled sheet as improved materials for automotive applications. A laboratory processing route was designed that involves cold-rolling of a tempered martensite structure followed by a second tempering step to produce a fine grained aggregate of ferrite and ca...

Abstract A combination of physical simulation and laboratory rolling experiments, including thermomechanical low-temperature ausforming, was conducted for designing a suitable processing route to enable phase transformation from austenite ultrafine bainite in medium-carbon steel. Following ausforming at 500-550 °C, two different cooling holding paths were tried the study: (1) water close marten...

austenitic stainless steels are extensively used in various applications requiring good corrosion resistance and formability. in the current study, the formation of nano/ ultrafine grained austenitic microstructure in a microalloyed aisi 304l stainless steel was investigated by the advanced thermomechanical process of reversion of strain-induced martensite. for this purpose, samples were subjec...

the formation of nano/ultrafine grained ferrite in low carbon steels containing different amounts of niobiumwas investigated using thermomechanical treatment which consisted of annealing of 85% cold rolled martensite with different parameters. the specimens were characterized by optical and scanning electron microscopy and vickers hardness test. a lamellar dislocation cell structure was formed ...

A detailed microstructural analysis during the intermediate stages of fabrication NiTi orthodontic archwire is carried out in this study. These findings were related to phase transformation characteristics such as start and finish temperature, thermal hysteresis, etc. The objective was monitor window different thermomechanical processing. casted alloy further subjected combinations hot cold for...