For an impressible, isotropic material, what is its Poisson’s ratioName: James Derek CoopeHW of ETM...

Question

For an impressible, isotropic material, what is its Poisson’s ratio
Name: James Derek Coope
HW of ETM 307 Chapter 9: Phase Diagram
20 pts in total
Please use phase diagram to explain why micro-segregation and macro-segregation happen during practical solidification.
MSU, Qingzhou Xu

hwch9-etm307-f2019-kfwuinms.doc

Samarpeet · Accepted Answer

When there's a phase transformation, non-uniform inclusion of atoms in solid section happens due to segregation. Segregation happens during freezing of liquids. So the solid-liquid phase boundary moves in to the liquid zone. Segregation primarily the atoms of the minority part of a binary system, e.g. ca
on in iron. However, different impurity atoms additionally present in little concentrations within the binary system also will be distributed in a heterogeneous manner in the solid at the start of freezing. both the heterogeneously distributed minority component atoms and / or the heterogeneously distributed impurity atoms may nucleate heterogeneously distributed larger defects like precipitates upon cooling. Segregation will happen in anywhere on the moving line however is most distinguished at the solid-liquid phase boundary as a result of the concentration of atoms is often completely different on either side of the boundary by necessity. The phase diagram shows and quantifies this....

For an impressible, isotropic material, what is its Poisson’s ratio Name: James Derek Cooper HW of ETM 307 Chapter 9: Phase Diagram 20 pts in total Please use phase diagram to explain why...

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