The microstructure of and damage to the upper divertor components in EAST were characterized by using metallography, EBSD, SEM. Under synergistic effect heat load plasma irradiation, cracking, recrystallization, interface debonding found target. crack propagates downward from loading surface along flux direction, propagation mode is an intergranular fracture. thermal loads deposited on edge mon...

This work focused on the effects of laser energy density relative density, microstructure, and microhardness Inconel 718 alloy manufactured by selective melting (SLM). The microstructural architectures, element segregation behavior in interdendritic region evolution laves phases as-SLMed IN718 samples were analyzed optical metallography (OM), scanning electron microscopy (SEM), dispersive spect...

Carbides and borides appear as minor phases in Inconel 100, although the carbon content (0.18%) is relatively high comparison to other nickel-base superalloys. The material properties of this alloy depend on a number interrelated microstructural parameters, including volume fraction γ' γ, grain size, elemental distribution, precipitation carbides borides. This study presents characterization fa...

In this work the effects of various methods of agitation on the properties of electroless Ni-P-MoS2 composite coatings were investigated. Magnetic stirring as well as purging the solution with gas (Air, Oxygen, Nitrogen) were used. Plating rate, chemical composition, MoS2 distribution, and hardness of the deposit were measured. Topography of coating was studied with metallography and scanning e...

The mechanical properties after tempering and intercritical annealing of medium manganese steels with 4 wt% Mn for forging applications are presented. After subsequent air cooling, heat treatments were performed, specifically from 250 450 °C between 600 675 °C. Tensile properties, Charpy V-notch impact toughness, hardness determined compared microstructural features characterized by metallograp...

In this work two new alloys were obtained by extrapolation from a wellknown high entropy alloy, the equimolar CoNiFeMnCr one. This was doneby addition of carbon and tantalum, Ta being one strongestMC-former elements. They produced conventional casting underinert atmosphere. The microstructures characterized X-raydiffraction, metallography, electron microscopy, energy dispersionspectrometry. The...

A study of the effect cold air plasma on cathode nickel grade N-1 has been carried out. The changes in microstructure, macro- and microstresses, as well static displacements atoms from equilibrium positions are investigated. By method aim metallography it was shown that microstructure does not change under exposure. X-ray structural studies have established level microstresses when exposed to p...