30 Stainlßss Steßl Focus 01/2016 Acciaierie Valbruna has come a very long way since its founding in 1925 as a small company specialising in forged equipment for use in agriculture, and after experiencing total devastation from allied bombing during the second world war. Following a rebuild and enlargement of the company’s works in the immediate postwar period, at the end of the 1950s there was ...

Thermodynamic analysis and computations of the equilibrium solution for the multivariable secondary phase in steels have been conducted, based on the chemical equilibrium. Solid solution precipitation in the Ti–N–C microalloy steel for the secondary phase was analyzed, and its engineering application in the development of carburizing gear steels was investigated. The complete dissolution temper...

The goal of this project was to develop low-firing thick-film materials systems for the fabrication of piezoresistive sensors on special steels, for the fabrication of instrumented medical devices. To this end, a series of individual thick-film materials and complete systems, based on lead borosilicate glasses, were developed and extensively characterised. These studies allowed us to formulate ...

The martensite steels produced by quenching and tempering has been used for machine structural use. Martensite in ferrite-martensite dual-phase steels (hereinafter, DP steels) also has important roll in strengthening of the automobile steel sheets. Therefore the importance of analyzing the microstructure and their mechanical properties of the martensite has been increased year by year. Many res...

The decomposition of austenite to ferrite or cementite begins at the equilibrium phase boundary of austenite/ (ferrite austenite) or austenite/(cementite austenite) in binary Fe–C phase diagram. The temperature values on the phase boundaries of austenite/(ferrite austenite) and austenite/(cementite austenite) at a certain carbon content are called Ae3 and Acm temperatures of the steel, respecti...

Objective: To develop an experimental technique whereby fatigue properties of newly developed hlgher strength steels, as are critical to deep water structural concepts, can be more rapidly and efficiently evaluated, and to use the technique to determine the influence of steel composition and microstructure potential and stress ratio on crack propagation behavior of these steels in natural seawa...

Electromagnetic Acoustic Transducers (EMATs) are an attractive alternative to standard piezoelectric probes in a number of applications thanks to their contactless nature. EMATs do not require any couplant liquid and are able to generate a wide range of wave-modes; however these positive features are partly counterbalanced by a relatively low signal-to-noise ratio and by the dependence of EMAT ...

Electrical steels play a crucial role in modern electrical devices and power systems due to their exceptional magnetic properties. This comprehensive review delves into the advancements field of steels, focusing on key aspects such as microstructure, loss analysis, properties, alloying elements, influence coatings. The microstructural characteristics are explored relation impact behaviour overa...

AISI 4340 steel is one of the super strong steels that can be selected for different applications. By designing the proper cycles of heat treatment, the optimum microstructure and properties of this steel can be achieved. In this study, different heat treatment cycles were introduced to achieve the optimum microstructure and improve the mechanical and magnetic properties of AISI 4340 steel. The...