To achieve the required strength in case of the aluminum material the use of age hardening process if good or not is to be explained.

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Chapter 19, Problem 3CS

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To achieve the required strength in case of the aluminum material the use of age hardening process if good or not is to be explained.

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The Allocated alloys are (i) Alloy : Udimet 720 (ii) Technical ceramic : Boron nitride (iii) Polymer/elastomer : Polycarbonate | Question 6 Ta) Explain the microstructural changes that your allocated alloy exhibits during age Thardening. You should use a sketch the microstructure of your material (i) held for 30 I minutes at the solution temperature, (ii) after, subsequently, cooling rapidly from the |solution temperature to room temperature, (ii) after, subsequently, holding at the commercial aging temperature for the prescribed time, to support your explanation. I b) Compare and contrast how precipitates (i) increase the yield strength of some alloys at room temperature, and (i) lower the creep rate of some alloys at elevated temperature. Ic) Your allocated alloy is strengthened by intermetallic precipitates that grow during aging. By both defining an intermetallic and detailing those found in your alloy, explain | why they are so effective at strengthening your material.

Regarding annealing, choose the right answer (One or more): The actual annealing time must be long enough to allow for any necessary transformation reactions that may occur Annealing can be performed to release internal stresses of the material The main purpose of annealing is to decrease or restore material's ductility Time isn't a significant parameter in annealing process If the rate of temperature change is too great, temperature gradients and internal stresses may be induced that may lead to warping or even cracking

What is the typical industrial reduction ratio for an ingot while being processed into a forging? Group of answer choices 7:2 3:1 2:1 10:1 How are oxides removed from the melt pool during a casting process? Group of answer choices Machined after solidification Collected in slag Allowed to diffuse out into the air Vacuum degassing