In sheet metal forming (SMF), deformation is caused by the relative movement between and tool, which generates friction forces. However, materials behave differently during plastic deformation. this study, a tribo-simulator was designed to investigate effect of different contact conditions or formability tests on tribological behavior AISI 304 430 stainless-steel sheets. The effects texture mic...

In the present study, the Weldability and microstructure of dissimilar welds of AISI 347austenitic stainless steel to ASTM A335 low alloy steel was investigated. For this purpose, gas tungsten arc welding process and two filler metals including ERNICr-3 and ER309L were used. After welding, the microstructure of the different zones of each joint, including weld metals, heat affected zone (HAZ) 1...

The load partitioning between the two phases in a cold rolled duplex stainless steel sheet have been experimentally studied in situ during loading, via X-ray diffraction, for different loading directions. The microstresses in the two phases were found to decrease when loading in the transverse direction, while they increase during loading in the rolling and 45°-direction. Due to strong crystall...

Abstract Carburization assisted by laser processing is a promising method to strengthen metallic materials. Direct beam carburization implemented for the first time on thin AISI 430 ferritic stainless steel (FSS) sheets with graphite coating under different conditions. Microstructural morphology, phase constitution, carbon content, microhardness, and tensile behavior are investigated evaluate e...

The polarisation characteristics of the electropolishing process in a magnetic field (MEP – magnetoelectropolishing), in comparison with those obtained under standard/conventional process (EP) conditions, have been obtained. The occurrence of an EP plateau has been observed in view of the optimization of MEP process. Up-to-date stainless steel surface studies always indicated some amount of fre...

This paper focused on the characterization of electrochemical behavior of a martensitic stainless steel in the acidic solutions. For this purpose, electrochemical parameters were derived from potentiodynamic polarization, Mott Schottky analysis and electrochemical impedance spectroscopy (EIS) techniques. The potentiodynamic polarization results showed that corrosion current density of AISI 420 ...

Ferritic stainless steel (FSS) grades are widely used for applications that require high strength and corrosion resistance. Their cost versatility in the market have attracted a lot of interest from both industry academic research. Despite their desirable properties, these steels experience surface defects as result microstructural evolution evolves due to softening mechanism. The current study...

Many of the degradation mechanisms relevant to power plant components can be exacerbated by stresses that reside within the material. Good design or structural integrity assessments require therefore, an accounting of residual stresses, which often are introduced during welding. To do this it is necessary to characterise the stresses, but this may not be possible in thick components using non-d...

The effects of boron on the grain boundary and surface energies in iron at 900 and 1000 OC and AISI 316 stainless steel in the temperature range 950-1 250 OC were investigated. It was found that boron reduced these energies in a manner typical of an element with low solubility in the matrix. It has been found that boron improves the grain boundary strength of iron at low temperatures [I] and in...

The TiO2–SiO2 thin films were deposited on AISI 316L stainless steel via sol-gel method. Then, the effect of the added amount of SiO2 on the structure, morphology and mechanical properties of the films and corrosion behavior of AISI 316L stainless steel substrate were investigated. So, X-ray diffraction, field-emission scanning electron microscopy, atomic force microscopy, depth-sensing indenta...