HSC · Year 12 · Personal and public transport
Engineering Materials
3 original lesson summaries in this topic collection.
Topic overview
- Ferrite is soft BCC iron, austenite is high-temperature FCC, cementite is hard Fe₃C; pearlite is layered ferrite + cementite.
- At the eutectoid (~0.8% C, ~723 °C) austenite becomes pearlite; the lever rule estimates proportions.
- Annealing softens; normalising refines; quenching forms martensite; tempering adds toughness.
- Martensite is a non-equilibrium structure not shown on the diagram.
Course references
- ENG-2011 Year 12 Personal and public transport: engineering materials (curriculum map Y12.PT.09-11)
- ENG-2011 Year 12 Personal and public transport: engineering materials (curriculum map Y12.PT.08, Y12.PT.12)
- ENG-2011 Year 12 Personal and public transport: engineering materials (curriculum map Y12.PT.13, Y12.PT.14, Y12.PT.15)
These references are Vantrel’s working syllabus map. Verify course requirements against the official syllabus.