Podcast
Questions and Answers
What is the significance of the last two digits in the alloy numbering system?
What is the significance of the last two digits in the alloy numbering system?
- They signify the type of alloying agent used
- They represent the alloy's purity level
- They indicate the alloy's susceptibility to intergranular corrosion
- They differentiate between different alloys within the same group (correct)
Which series of alloys is known for its susceptibility to intergranular corrosion when improperly heat treated?
Which series of alloys is known for its susceptibility to intergranular corrosion when improperly heat treated?
- 4xxx Series
- 3xxx Series
- 2xxx Series (correct)
- 1xxx Series
What is the principle alloying element in the 3xxx Series of aluminium alloys?
What is the principle alloying element in the 3xxx Series of aluminium alloys?
- Iron
- Zinc
- Copper
- Manganese (correct)
Why are aluminium-copper alloys in the 2xxx Series known for greater strength?
Why are aluminium-copper alloys in the 2xxx Series known for greater strength?
Which two alloys are commonly used in aircraft structures for constructing skins and rivets?
Which two alloys are commonly used in aircraft structures for constructing skins and rivets?
What features are associated with alloys in the 1xxx Series of aluminium?
What features are associated with alloys in the 1xxx Series of aluminium?
What is the purpose of solution heat treatment on aluminium alloys?
What is the purpose of solution heat treatment on aluminium alloys?
Why is it crucial to remove an alloy from the furnace to quench within a specified time?
Why is it crucial to remove an alloy from the furnace to quench within a specified time?
What happens if excessive precipitation occurs during the cooling process?
What happens if excessive precipitation occurs during the cooling process?
How is the cooling rate controlled in the solution heat treatment process?
How is the cooling rate controlled in the solution heat treatment process?
What is the main consequence of not stopping the precipitation process during cooling?
What is the main consequence of not stopping the precipitation process during cooling?
Why is it important to maintain a small tolerance regarding the soaking temperature during solution heat treatment?
Why is it important to maintain a small tolerance regarding the soaking temperature during solution heat treatment?
What does the digit following the temper designations H1, H2, and H3 indicate?
What does the digit following the temper designations H1, H2, and H3 indicate?
What does the letter O represent in a material's temper designation?
What does the letter O represent in a material's temper designation?
What drawback of using magnesium in aircraft structures is overcome by treating the surface with chemicals that form an oxide film?
What drawback of using magnesium in aircraft structures is overcome by treating the surface with chemicals that form an oxide film?
How is the tendency of magnesium to crack when formed typically overcome?
How is the tendency of magnesium to crack when formed typically overcome?
What physical property makes magnesium alloys suitable for use in aircraft structures?
What physical property makes magnesium alloys suitable for use in aircraft structures?
In what form are magnesium alloys available for use in aircraft structures?
In what form are magnesium alloys available for use in aircraft structures?
What should be done to extinguish a fire caused by magnesium?
What should be done to extinguish a fire caused by magnesium?
What does solution heat treatment do to magnesium alloys?
What does solution heat treatment do to magnesium alloys?
Why is titanium dioxide conversion needed before using titanium?
Why is titanium dioxide conversion needed before using titanium?
What characteristic of titanium makes it extensively used in the civilian aerospace industry?
What characteristic of titanium makes it extensively used in the civilian aerospace industry?
How does artificially aging magnesium alloys after solution heat treatment affect them?
How does artificially aging magnesium alloys after solution heat treatment affect them?
What is the recommended method for extinguishing a fire involving magnesium alloys?
What is the recommended method for extinguishing a fire involving magnesium alloys?
What is the primary metal used for electrical wiring?
What is the primary metal used for electrical wiring?
Which alloy is commonly used in electrical components for its high conductivity?
Which alloy is commonly used in electrical components for its high conductivity?
Why is beryllium copper identified as a hazardous material in Safety Data Sheets?
Why is beryllium copper identified as a hazardous material in Safety Data Sheets?
What is the primary difference between Inconel and stainless steel?
What is the primary difference between Inconel and stainless steel?
Which metal is found filling narrow cracks or fissures?
Which metal is found filling narrow cracks or fissures?
In aircraft construction, which metal has little use as a structural material?
In aircraft construction, which metal has little use as a structural material?
