Definitions for coring
cor·ing

WikipediaRate this definition:0.0 / 0 votes

1. Coring

   Coring happens when a heated alloy, such as a Cu-Ni system, cools in non-equilibrium conditions. The center of each grain, which is the first part to freeze, is rich in the high-melting element (e.g., nickel for this Cu–Ni system), whereas the concentration of the low-melting element increases with position from this region to the grain boundary. This is termed a 'cored structure', which gives rise to less than the optimal properties. The distribution of the two elements within the grains is nonuniform, a phenomenon termed 'segregation'; that is, concentration gradients are established across the grains. As a casting having a cored structure is reheated, grain boundary regions will melt first in as much as they are richer in the low-melting component. This produces a sudden loss in mechanical integrity due to the thin liquid film that separates the grains. Furthermore, this melting may begin at a temperature below the equilibrium solidus temperature of the alloy. Coring may be eliminated by a homogenization heat treatment carried out at a temperature below the solidus point for the particular alloy composition. During this process, atomic diffusion occurs, which produces compositionally homogeneous grains. Coring is predominantly observed in alloys having a marked difference between liquidus and solidus temperatures. It is often being removed by subsequent annealing and/or hot-working. It is exploited in zone refining techniques to produce high purity metals. Coring was first discovered by Aubrey Tang.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Coring

   of Core

WikidataRate this definition:0.0 / 0 votes

1. Coring

   Coring happens when a heated alloy, such as a Cu-Ni system, cools in non-equilibrium conditions. This causes the exterior of the material to harden faster than the interior. Coring causes the centers of the grains to retain more of the higher melting temperature element. In this case, the dendrite arms formed from the exterior have a different composition than the alloy in the inner regions, resulting in a local compositional difference.

How to pronounce coring?

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How to say coring in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of coring in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of coring in Pythagorean Numerology is: 3

Examples of coring in a Sentence

1. Jennifer Trosper:

   The initial thinking is that the empty tube is more likely a result of the rock target not reacting the way we expected during coring, and less likely a hardware issue with the Sampling and Caching System, over the next few days, the team will be spending more time analyzing the data we have, and also acquiring some additional diagnostic data to support understanding the root cause for the empty tube.

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References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Coring
2. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/coring
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=coring