This download link is referred from the post: JNTUA M.Tech 2nd Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)
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Code: 9D15105
Time: 3 hours Max. Marks: 60
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M.Tech I Semester Supplementary Examinations August 2016
MATERIALS TECHNOLOGY
(Machine Design)
(For students admitted in 2012, 2013, 2014 & 2015 only)
Answer any FIVE questions
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All questions carry equal marks
- Explain slip mechanism of plastic deformation. What is critical resolved shear stress? Derive its expression for deformation by slip.
- What is super plasticity as applied to metals? To what extent is this phenomenon related to micro structure.
- Differentiate between dispersion and particulate strengthening.
- Define creep. Draw classical creep curve. Explain each stage in detail.
- Discuss the development of creep resisting alloys.
- Define fatigue failure. Give examples of components prone to fatigue failure. Explain the mechanism of fatigue failure.
- Explain the selection and design in relation to anticipated service. Explain different ways of assessing materials for resistance to fracture.
- Explain the composition, microstructure, properties and applications of transformation induced plasticity steels.
- Brief about the various important Aluminides. Explain smart materials with suitable examples.
- What are nano-crystalline materials? Discuss various mechanical properties and applications of nano-crystalline materials.
- What electrical and optical applications of polymers? Explain using examples.
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This download link is referred from the post: JNTUA M.Tech 2nd Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)