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MECH6025 - Material Science

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Title:Material Science
Long Title:Material Science
Module Code:MECH6025
 
Duration:1 Semester
Credits: 5
NFQ Level:Fundamental
Field of Study: Mechanical Engineering
Valid From: Semester 1 - 2016/17 ( September 2016 )
Module Delivered in 7 programme(s)
Module Coordinator: GER KELLY
Module Author: GER KELLY
Module Description: This module will provide the student with an understanding of the relationship between material structure and material behaviour or performance. It will classify different materials e.g. metals and plastics according to their properties. The relationship between cooling or quenching rate and the properties and microsturecture of steel is outlined. Classification of composite materials according to their reinforcement is described.
Learning Outcomes
On successful completion of this module the learner will be able to:
LO1 Relate cooling rate and alloying to specific material properties and end use applications of plain carbon steels
LO2 Identify limitations that impact the performance of engineering materials
LO3 Discuss recent advances in engineering material in areas such as aerospace and biomedical.
LO4 Select suitable materials for a particular design or application subject to appropriate design constraints whilst being mindful of Economic, Environmental and Societal issues
LO5 Structure and prepare a technical report on mechanical properties measurement or materials selection
Pre-requisite learning
Module Recommendations
This is prior learning (or a practical skill) that is strongly recommended before enrolment in this module. You may enrol in this module if you have not acquired the recommended learning but you will have considerable difficulty in passing (i.e. achieving the learning outcomes of) the module. While the prior learning is expressed as named CIT module(s) it also allows for learning (in another module or modules) which is equivalent to the learning specified in the named module(s).
No recommendations listed
Incompatible Modules
These are modules which have learning outcomes that are too similar to the learning outcomes of this module. You may not earn additional credit for the same learning and therefore you may not enrol in this module if you have successfully completed any modules in the incompatible list.
No incompatible modules listed
Co-requisite Modules
No Co-requisite modules listed
Requirements

This is prior learning (or a practical skill) that is mandatory before enrolment in this module is allowed. You may not enrol on this module if you have not acquired the learning specified in this section.

No requirements listed
Co-requisites
No Co Requisites listed
 

Module Content & Assessment

Indicative Content
An introduction to Materials science and Engineering
Classifications of materials e.g. metals, ceramics, polymers, composites, semiconductors, biomaterials, smart materials, nanomaterials. Requirements for engineering materials. (properties, performance, manufacturability, cost, recycling)
The Structure of crystalline solids
Metallic crystal structures, polymorphism, crystal systems, polycrystalline materials Point defects, vacancies, substitutional, interstitial, impurities, line defects, edge defects, dislocations
Mechanical & Thermal Properties.
Stress and strain relationships, elastic plastic behaviour, tensile testing methods, true stress and strain, ductility, mechanical behaviour of metals, ceramics, polymers, composites, variability of material properties, safety factor, thermal properties Deformation and Strengthening
Material Failure.
Fracture – brittle & ductile fracture. Impact test. Fatigue & cyclic stress, S-N curve creep behaviour, creep tests, creep resistant materials
Alloys & Equilibrium Diagrams
Review of alloys and equilibrium diagrams. Binary Eutectic systems, mass fractions, Lever Rule. Alloying elements, Effects of alloying elements, Structural steels, Corrosion resistant steels, Tool and die steels
Heat Treatment
Review of heat treatment of steels. Iron carbon equilibrium and non equilibrium diagram. Hardening methods.Non-equilibrium transformations. Time-temperature transformations. Continuous-Cooling Transformations, Tempering process, critical cooling rates, impact of alloying on critical cooling rates, mass effect, hardness and hardenability
Composite Materials
Introduction to composite materials, classification of composite materials, fibrous reinforcement, particulate reinforcement, examples of various applications. Anisotropic properties.
Corrosion
Dry corrosion, Wet corrosion & Galvanic corrosion of metals. Protective coatings - hot dipping, electroplating, metal spraying, anodising, paints, enamel and plastic coatings. Corrosive resistant materials - plastics, stainless steel, alloys and ceramics. Corrosion mechanisms - Stress corrosion, Uniform corrosion, Crevice corrosion, Pitting, Intergranular corrosion, Erosion corrosion, Fretting, Hydrogen embrittlement.
Polymer Processing Techniques
Plastics and processes:- production processes for thermoplastic and thermoset materials, extrusion, injection moulding, calendering, extrusion flow moulding. Rotational molding, transfer molding, compression molding, vacuum forming. Applications to mechanical and biomedical engineering.
Materials Selection and Design Considerations.
Strength considerations, other property considerations, use of materials selector package, examples. Economic, Environmental and Societal issues, including cost, manufacturabilty, recycling
Assessment Breakdown%
Course Work40.00%
End of Module Formal Examination60.00%
Course Work
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Practical/Skills Evaluation Lab reports 2,5 15.0 Every Second Week
Short Answer Questions Class test 1,2 10.0 Week 4
Project Material selection project 3,4,5 15.0 Week 10
End of Module Formal Examination
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Formal Exam End-of-Semester Final Examination 1,2,3,4 60.0 End-of-Semester
Reassessment Requirement
Repeat examination
Reassessment of this module will consist of a repeat examination. It is possible that there will also be a requirement to be reassessed in a coursework element.

The institute reserves the right to alter the nature and timings of assessment

 

Module Workload

Workload: Full Time
Workload Type Workload Description Hours Frequency Average Weekly Learner Workload
Lecture in class lecture or tutorial 3.0 Every Week 3.00
Lab Material testing lab 1.0 Every Second Week 0.50
Independent & Directed Learning (Non-contact) Self Directed learning 3.0 Every Week 3.00
Lab Use of approriate software 1.0 Every Second Week 0.50
Total Hours 8.00
Total Weekly Learner Workload 7.00
Total Weekly Contact Hours 4.00
Workload: Part Time
Workload Type Workload Description Hours Frequency Average Weekly Learner Workload
Lab Material testing lab 1.0 Every Second Week 0.50
Lecture Classroom tuition 3.0 Every Week 3.00
Lab Use of appropiate software 1.0 Every Second Week 0.50
Independent & Directed Learning (Non-contact) Self directed learning 3.0 Every Week 3.00
Total Hours 8.00
Total Weekly Learner Workload 7.00
Total Weekly Contact Hours 4.00
 

Module Resources

Recommended Book Resources
  • Michael Ashby, D R H Jones, 2013, Materials, engineering, science, processing and design, 3rd Ed., Butterworth-Heinemann [ISBN: 9780080977737]
  • R.A. Higgins 2006, Materials for the Engineering Technician,, 4th Ed., Newnes [ISBN: 10: 0-7506-6850-4]
Supplementary Book Resources
  • William D. Callister, Jr.; with special contributions by David G. Rethwisch 2009, Materials science and engineering, 8th Ed., John Wiley & Sons New York [ISBN: -10: 0470419970]
  • D R H Jones, Michael F. Ashby, 2011, Engineering Materials 1,, 4th Ed., Elsevier Science [ISBN: 9780080966656]
This module does not have any article/paper resources
This module does not have any other resources
 

Module Delivered in

Programme Code Programme Semester Delivery
CR_ESENT_8 Bachelor of Engineering (Honours) in Sustainable Energy Engineering 4 Elective
CR_EBIME_7 Bachelor of Engineering in Biomedical Engineering 4 Mandatory
CR_EMANF_7 Bachelor of Engineering in Manufacturing Engineering 4 Mandatory
CR_EMECH_7 Bachelor of Engineering in Mechanical Engineering 4 Mandatory
CR_EBIME_6 Higher Certificate in Engineering in Biomedical Engineering 4 Mandatory
CR_EMECH_6 Higher Certificate in Engineering in Mechanical Engineering 4 Mandatory
CR_EMECN_7 Parttime - Bachelor of Engineering in Mechanical Engineering 4 Group Elective 1

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