Transcription of UNIT 21: MATERIALS ENGINEERING - FREE STUDY
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UNIT 21: MATERIALS ENGINEERING - FREE STUDY
1 unit 21: MATERIALS ENGINEERING unit code: F/601/1626 QCF level: 4 Credit value: 15 LEARNING OUTCOME 4 TUTORIAL 1 On successful completion of this unit a learner will: Understand the in-service causes of failure of ENGINEERING MATERIALS Causes of failure : failure of material categories (metals: ceramics, polymers and composites) creep, fatigue, impact, overstressing, corrosion, temperature, thermal cycling, residual stresses, stress relaxation, degradation (composition change), radiation, electrical breakdown, or combinations of these Service life: contributory effects of service conditions to failure inappropriate maintenance, inappropriate use, faults in manufacture, material selection and design faults, changes in service conditions such as environment, loading and temperature. Estimation: methods of investigating failure and the preparation of estimates of product service life that require the use of calculations creep or fatigue failure Improving service life: recommending remedial and/or preventative measures changes to material , product design, protective systems for corrosion and degradation, adjustment loading arid working temperature RECOMMENDED READING It is impractical to think that a tutorial like this could adequately cover all the things you need to know.
© www.freestudy.co.uk 4 2. CAUSES OF FAILURE 2.1 GENERAL REASONS Material testing is covered in outcome 1 tutorial 4 so if you …
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