Explore the skills · QCAA
Materials for machines
Unit 4 external-assessment revision: materials for machines.
Explore the subject and its skills. Full lessons, examples and practice require subject access. Accounts and purchasing are not open yet.
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Materials for machines
- Interpret lead–tin phases and eutectic behaviourRevision skill
- Calculate phase fractions and compositions using the lever ruleRevision skill
- Interpret steel phases and microstructuresRevision skill
- Select plain-carbon steels for mechanical applicationsRevision skill
- Explain how hot and cold working change grain structureRevision skill
- Explain and compare annealing and normalisingRevision skill
- Explain quenching, martensite and temperingRevision skill
- Select ABS, polycarbonate and nylon 6 from their propertiesRevision skill