Module 2- non- ferrous metals manufacturing

Question 1

what are the commonly used non-ferrous metal alloys?

Answer 1

nickel, copper, magnesium, aluminum

Question 2

What is the difference between a disordered arrangement and clustered arrangement when talking about substitutional elements?

Answer 2

Disordered meaning that there is no particular position or pattern within the lattice and a clustered arrangement contains local groupings to highly ordered structure.

Question 3

increasing the percentage of the alloying elements leads to what?

Answer 3

It’s leads to increase in strength by increasing the number of regions of lattice strain.

Question 4

What is the annealing temp of wrought aluminium?

Answer 4

345-415* C

Question 5

What is the annealing temp of wrought brass?

Answer 5

425-700*C

Question 6

What is the annealing temp of 99% pure platinum?

Answer 6

420-1100*C

Question 7

What is the annealing temp of commercially pure titanium?

Answer 7

650-760*C

Question 8

What is the annealing temp of Alpha or near Alpha titanium alloys?

Answer 8

980-1060*C

Question 9

What is the annealing temp of Alpha/beta titanium alloys?

Answer 9

870-970*C

Question 10

What is the annealing temp of Beta or near Beta titanium alloys?

Answer 10

760-815*C

Question 11

what’s considered a commercially pure metal?

Answer 11

a minimum of 99% pure

Question 12

What are the three stages of annealing?

Answer 12

1. Recovery/stress relief.
2. recrystallisation.
3. grain growth.

Question 13

What is alloying?

Answer 13

Alloying is a process in which different elements are mixed with a base metal to enhance its properties.

Question 14

what is solid solution hardening?

Question 15

What is annealing?

Answer 15

Annealing is used to relieve internal stresses in a metal, particularly after cold working has bee carried out. It also restores a higher ductility to a metal, which decreases its hardness as well.

Question 16

What is solid solution hardening?

Answer 16

Solid solution hardening is a type of alloying that can be used to improve the strength of a pure metal. The technique works by adding atoms of one element (the alloying element) to the crystalline lattice of another element (the base metal), forming a solid solution.