The international materials community is engaged in finding safer alternatives to zirconium alloys for the cladding of fuel light water reactors. One solution replace using ferritic iron-chromium-aluminum (FeCrAl) alloys, which offer extraordinary resistance high-temperature reaction with air or steam due formation a protective alumina layer on external surface. It important characterize behavi...

This study aimed to observe the thickening of S-phase and Sα-phase various stainless steels subjected low-temperature direct current plasma nitriding using screen (S-DCPN). Austenitic steel SUS304, ferritic SUS430, duplex SUS329J4L were treated two different screens for comparison, namely, a Ni plate cold commercial (SPCC) screen. Plasma was performed at 673 K 300 min under 75％ N2 + 25％ H2 atmo...

Сrystal structure and mechanism of crystallization of Fe-Ni alloys were studied by methods of X-ray diffraction and metallography. It has been found that macro- and microstructure of austenitic alloy was essentially heterogeneous at the contact and free surfaces and in the volume of a ribbon. The indentified peculiarities of the austenitic phase in different areas of the ribbon are attributed t...

Introduction. The article discusses the improved repair technologies of pipeline material saturated with hydrogen sulfide, which should replace conventional methods that ignore operational features in a sulfide environment. aim this work is to develop technology for repairing pipelines operated environment by manual arc welding using consumable electrode. Materials and methods. Full-scale exper...

The resistive wall mode is experimentally identified and characterized in a line-tied, cylindrical screw pinch when the edge safety factor is less than a critical value. Different wall materials have been used to change the wall time and show that the growth rates for the RWM scale with wall time and safety factor as expected by theory. The addition of a ferritic wall material outside the condu...

The stability of austenite against strain induced martensitic transformation (SIMT) strongly depends on the grain size of the austenite. This is observed in austenitic steels with grain sizes from several pm up to several hundred pm and for much smaller austenitic grains (three orders of magnitude) that are embedded in a non austenitic matrix. fcc Fe-precipitates may be formed in dilute Cu-Fe a...

Highly alloyed austenitic stainless steels are promising candidates to replace more expensive nickel-based alloys within the energy-producing industry. The present study investigates the deformation mechanisms by microstructural characterization, mechanical properties and stress–strain response of three commercial austenitic stainless steels and two commercial nickel-based alloys using uniaxial...

Orthodontic stainless-steel appliances are considered to be corrosion resistant, but localized corrosion can occur in the oral cavity. This study was undertaken to evaluate the properties of super stainless steels in orthodontic applications. Accordingly, the metallurgical properties, mechanical properties, corrosion resistance, amount of the released nickel, cytotoxicity, and characteristics o...

In this work, austenitic oxide dispersion strengthened (AODS) steel of composition Fe–16Cr–16Ni–1.5 W–0.21Ti–0.3Y2O3 (wt. %) was fabricated using two–stage ball milling followed by consolidation through spark plasma sintering (SPS). the first–stage, mechanical alloying (MA) ferritic powder and nano sized Y2O3 carried out. This addition Ni in second–stage milling. SPS milled out at 900, 950, 100...

Abstract The corrosion polarization behavior of 439ll ferritic (439ll), 316L austenitic (316L), and NO7208 nickel-chromium-aluminum-iron (NO7208) stainless steels, Ti6Al4V titanium (Ti6Al4V) alloys was studied in 4 M H 2 SO + 5% NaCl solution at 35 70°C. Corrosion rate ( C R ) the were generally higher alloy exhibited resistance to general 35°C (0.067 0.050 mm/year) while most reactive (0.506 m...