Light Materials Flashcards
What is the most highly produced metal based material?
Iron
What is the most abundant metal based material?
Aluminium
What is the Crystal structure of Aluminium Alloys?
FCC
What are the major alloying elements for Aluminium?
- Copper
- Magnesium
- Silicon
- Zinc
- Manganese
Describe the process of age hardening of alu alloys
- Solution treatment in alpha field
- Rapid cooling or quenching usually to room temp
- Ageing at appropriate temps for decomposition
5 examples of aluminium alloy applications
- Pistons
- Cast Engine Block
- Aerospace
- Construction
- Containers and Packaging
What is the Crystal structure of Magnesium Alloys?
HCP
Major Alloying elements for magnesium
- Aluminium
- Zinc
- Manganese
- Silicon
- Copper
Main advantage for magnesium alloys?
Low Density
Main Limitation of magnesium alloys?
Highly Flammable
5 examples of Magnesium Alloy applications
- Cladding of fuel rods in nuclear power stations
- Aerospace Industry
- Light-weight vehicles for the future
- Laptop Shells
- Biomaterials
What is the Beta Transus temp for pure Titanium?
882 degrees celcius
What is the crystal structure of high temp titanium?
BCC
What is the crystal structure of low temp titanium?
HCP
Main advantages of titanium alloys
High strength-weight ratio
Main limitation of Titanium alloys
High Cost
5 examples of industries using Titanium Alloys
- Aerospace
- Chemical Plants
- Automotive
- Medicine
- Construction
Applications of alpha and near alpha titanium alloys
- Aircraft hydraulic and fuel systems
- Spacecraft
Properties of alpha and near alpha titanium alloys
- Intermediate strength
- Better for cold working
- excellent weldability
- excellent corrosion resistance
Applications of alpha + beta titanium alloys
- Aerospace industry
- Automotive industry
- Medical
Properties of alpha + beta titanium alloys
- Highest strength-weight ratio
- superior corrosion resistance
- High temperature capabilities
Applications of beta and near beta titanium alloys
- Aerospace airframes
- Aircraft Engines
Properties of beta and near beta titanium alloys
- High strength
- High Hardenability
- Good Fracture toughness