Sentences with phrase «embrittlement in»

A team of researchers found that randomly selected, high - angle, general grain boundaries in a nickel - bismuth (Ni - Bi) polycrystalline alloy can undergo interfacial reconstruction to form ordered superstructures, a discovery that enriches the theories and fundamental understandings of both grain boundary segregation and liquid metal embrittlement in physical metallurgy.

In that earlier work, researchers discovered this bilayer interfacial phase that is responsible for the mysterious liquid metal embrittlement in nickel - bismuth, but the exact atomic structures of the bilayers had not been determined at that time.

Not exact matches

Specific to this nickel - bismuth system, such interfacial superstructures are the root cause of a mysterious phenomenon called «liquid metal embrittlement,» wherein a normally ductile nickel metal or nickel - based alloy can fail catastrophically in an extremely brittle manner in contact with a bismuth - based liquid metal.

is an incorrect characterization of the state - of - the - art in understanding of neutron irradiation embrittlement of reactor pressure vessel materials.

Although engineers may not have had a full understanding, at the level of crystal structure, of the causes of embrittlement, they have been fully aware of the phenomena for a number of decades and their designs and in - service inpection regimes are aimed at mitigating the associated risks.

In the event of unacceptable embrittlement, a possible mitigation and RPV life extension strategy is vessel annealing — raising the temperature to 600 deg C for several hours.

As metioned in # 18 above neutron embrittlement has been a known and understood phenomenon for decades.

Specifically materials in the plumbing, pumps, and separators must be able to handle HIGHLY corrosive liquid salt hot enough to melt tin and simultaneously resist embrittlement by high neutron flux.

The exposure to ultra-violet light leads to embrittlement and a decrease in elasticity of the system.

The acrylic content also interferes with hydration and makes the lamina more sensitive to carbonation — a reaction with atmospheric carbon dioxide — that leads to embrittlement and a decrease in elasticity.