The purpose of the research: evaluation quality and durability for pipes made high-alloyed austenitic ferritic-austenitic steels, which are manufactured at PJSC "CENTRAVIS PRODUCTION UKRAINE" using latest technologies, by conducting complex laboratory studies long-term operational tests chemical industry enterprises. Materials methods: research materials were experimental chromium-nickel-molybd...

Microstructure of commercial dental alloys and their amalgams were studied primarily by x-ray diffraction, optical metallography, scanning electron microscopy, and x-ray energy dispersive spectroscopy. X-ray diffraction revealed more phases than normally reported in these materials. Presence of new phase was discussed and their formation mechanism understood. Some phases having interacting 2 th...

This paper aims to improve the mechanical properties and fatigue life of AISI/SAE 4140 alloy steel connecting rods (CRs). Conventional CRs are typically manufactured through open die forging/hammering, blocking, hot forging processes. In present work, a modification process route has been proposed such that forging/hammering was completely replaced with multistep asymmetrical reducer rolling te...

Laser welding-brazing was used to join cemented carbide WC-Co and steel dissimilar materials. In this study, high-speed welding adopted. The effect of parameters brazing filler metals on the macrostructure, elemental diffusion, micro hardness thermomechanical behavior analyzed using optical metallography, scanning electron microscopy, probe micro-analysis, test, finite element method (FEM) base...

Image segmentation is an important issue in many industrial processes, with high potential to enhance the manufacturing process derived from raw material imaging. For example, metal phases contained microstructures yield information on physical properties of steel. Existing prior literature has been devoted develop specific computer vision techniques able tackle a single problem involving parti...

The International Thermonuclear Experiment Reactor (ITER) Thermal shield (TS) serves as a cryogenic heat exchanger to maintain the thermal stability of ITER superconducting magnet coil, which is critical control plasma during operation device. TS composed long-length 316L stainless steel (SS) and copper brazed joints. In this case, feasible fabrication design for CCS presented, accomplished by ...

Knowledge of phase transformation kinetics is a key point in designing steel grades, particular modern high-performance highly sought-after energy and transportation applications. The design space for these grades multi-dimensional given the numerous potential alloying elements. characterization techniques that are usually relied on to assess kinetics, such as metallography or dilatometry, time...