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www.monash.edu.au

Department of Materials Engineering

Dr Don RodrigoEmail: [email protected]

ENG1050/MCD4220 Engineering Materials

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www.monash.edu.au


Lecture 1:

Introduction to Engineering Materials/ Materials Engineering

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Context

1nm

1m

1mm

1m

1

Precipitates in Al

Dislocations in Cu

Grains in Mg

TiO2nanoparticles

Polymer scaffold

Atom positions in Al alloy

Nerve cells

Human hair

Light pole

10-4

10-5

10-6

10-7

10-8

10-9

10-10

10-3

10-2

10-110

0

101

102

Log scale

103

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Material

Anything that has a mass and volume, made of one or more

s (e.g. Water, Concrete, Iron, Fiberglass, Air, Copper)

Matter that has constant chemical composition

and characteristic properties (e.g. Water, Iron,

Copper)





Copper)

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Material



Engineering Materials



Copper)

Materials that engineers use (e.g. Concrete, Iron, Fiberglass,

Copper) to make structures (e.g., bridges), components (e.g.,

wheel), and devices (e.g., mobile phone)

They must meet target values of properties that are necessary

achieve the expected performances in the intended application



Materials that engineers use (e.g. Concrete, Iron, Fiberglass,

Copper) to make structures (e.g., bridges), components (e.g.,

wheel), and devices (e.g., mobile phone)

They must meet target values of properties that are necessary

achieve the expected performancesin the intended application

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Examples of Engineering Materials

Two different materials (aluminium and

glass) used for the same application(beverage containers)

Same material (glass) used for different applications

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Families of Materials Materials can be bundl

into 4 categories(Meta

Polymers, Ceramics +Glasses and Composit

based on their commo

characteristics.

There are many thousaof materials to choose

AND

many more materials w

born (developed) in the

future to satisfy our ne

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Materials are the DNA of society**Mark Miodownik, Kings College Londo

How the society functions depends on the types and amoun

of various materials available and how they are used

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Materials Science

Investigating the relationship between the structures and

properties of materials

Materials Engineering

DESIGNING or ENGINEERING the STRUCTURE of a material to

ensure that it possesses a predetermined set of PROPERTIES

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Structure-property paradigm

Structure

Processing

PropertiesEngineered

materials

Performance

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Structure

Microstructure: features

that can be seen using amicroscope

Mg - metal

ZrO2- ceramic

Macrostructure: features

that can be seen with thenaked eye

Concrete

Laminated timber

Quartz Gla

Atomic / MoleculCrystal structure

the atoms are boand arranged

The arrangement of internal components

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Properties

e.g.:

Duct i l i ty- ability to deform permanently when subjected to anexternal force

Thermal cond uct iv i ty ability to transfer heat along the materia

when one side of it is exposed to a higher temperature than th

other sides

Responses of a material to external stimuli

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Generated from CES software fo

selection of materials

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Processing

Effect of processing method onlight transmittance propertiesaluminium oxide (Al2O3)

Subjecting the raw-materials (starting materials) to a series of

operations that transform the raw materials into an engineering

material or a product.

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What do the Materials Scientists and Engineers do?

Develop new materials with various combinations of properties

Improve the performance of existing materials in various

applications.

Develop easier and more economical ways of making products

from various materials.

Design new products to get the best use of the properties that

material offers etc.

Open the door to New Devices and Technologies

Drive the growth, prosperity, security, and quality of life ofhumans.

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Teaching staff: Clayton campus

Associate Professor John Forsythe, unit coordinator;

[email protected]

Dr Don Rodrigo; [email protected]

Lab demonstrators
mailto:[email protected]:[email protected]:[email protected]:[email protected]

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My

Office

24/

S525/S3,

S4

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Handbook objectives

1. Appreciate the influence of atomic structure, bonding and nano/microstructures have on some physicaproperties;

2. Have an understanding of different materials responses to forces and stresses

3. Have an understanding of the basic mechanical properties, principally elastic modulus and yield stressand be able to use these as design criteria

4. Be familiar with processes occurring during plastic deformation and to draw upon these concepts in orto know how to strengthen the material

5. Know how to tailor the mechanical properties of a polymeric material using control over crystallinity anglass transition,

6. Understand the role of composite materials in engineering, and their responses to applied stresses

7. Understand the processes involved during fracture and have a broad understanding of how fracture caavoided by appropriate selection of materials and design

8. Have a basic understanding of the thermal, electrical and magnetic properties of materials in terms of atomic and electronic characteristics of materials and to use these criteria for material selection

9. Understand the processes of corrosion and degradation in the environment and to draw upon these toincrease the lifetime through appropriate protection and material selection

10. Be able to select an appropriate material for a given application based on the above points

11.Appreciate the socio-political and sustainability issues influencing material selection, commonly

experienced as a professional engineer

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Rationale for objectives

At some stage in their careers, all engineers will need

to chose materials, and processes to shape and join

them.

This unit is intended to give you some insightinto that

process.

It will not solve all your material selection problems,

but will set you on the way to solving those problems(lay the foundation).

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CES software for selection of materials

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Our goals for this unit:

To introduce you to Materials Engineering from the

point of view of selection of materials and materials'

usage.

To demonstrate that all engineers need to understand

materials.

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Unit structure

Lectures, tutorials3h per week

Lab classes2h per week (commence in week 1) Online test 15% (week 4)

Structure-property report7% (week 5)

Mid semester test10% (week 8)

Online test 25% (week 9) Corrosion assignment10% (week 11)

Design of materials report8% (week 12)

Performance in laboratory practicals5% (weeks 211)

Exam50%

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Expectations

Plan to study at home:

Expect to devote an average of twelve hours per week

to a six credit point subject (total: lectures, labs,

assignments, self-directed study)

Download lecture notes from the web site each week

before the lectures

Attempt practice questions Attend lab sessions (compulsory)

G

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Assessment Guide

Unit Guide has broad objectives

I will start each lecture with a series of typicalassessment points. These are the things you shouldexpect to be examined on

For example:

Identify the property which governs the choice ofmaterial for a given application (e.g., bike forks, bridge,spring, drive shaft, ship hull...)

Describe the features of a material which control agiven property (strength, hardness...)

Th RAPID FEEDBACK QUIZ

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The RAPID FEEDBACK QUIZ

Approximately every 3-4 lectures I shall collect your

(anonymous) written responses to the following

statements, and these will be used to set the agenda

for the tutorials. Be prepared to discuss the issues at

the tutorial. The information is also valuable feedback

for me.

The extra information I most want about this topic is

The main point I learned this week was

The main point I did not understand this week was

R

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Resources ENG1050 Moodle page:

Access via the Monash portal: my.monash.edu.au

ATTEMPT TO LOG IN THIS WEEK.If you cant access, please send me an em

CES EduPack 2013 - material selection software Used for practice questions and labs.

Recommended textbooks

Materials: Engineering, Science, Processing and Design; M.F. Ashby, H. SheD. Cebon, Butterworth-Heinemann, 2007

Materials Science and Engineering, An Introduction, W. Callister, 7thedition

later.Relevant sections of this book will be available via the ENG1050 Moodle por Unit Reading List (http://readinglists.lib.monash.edu/index.html )

Other references:

Engineering Materials 1, M.F. Ashby, D.R.H. Jones, 2ndedition, Butterworth-Heinemann. This book is available on linevia the Hargrave-Andrew library w

linked from the ENG1050 Moodle page.

R di & t d ti
http://readinglists.lib.monash.edu/index.htmlhttp://readinglists.lib.monash.edu/index.html

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Reading & study questions

Read Chapter 1 from Materials: Engineering, Science,Processing and Design; M.F. Ashby, H. Shercliff, D.Cebon (in future abbreviated toAshby, Shercliff, Cebon).Undertake exercises E1.2 - E1.11.

OR

Read Chapter 1 from Engineering Materials 1, M.F. Ashby,

D.R.H. Jones.

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Engineering

PlagiarismPlagiarism is the presentation of another persons work, ideas or creations under your own name,

acknowledging where that work came from.

Monash University policy on plagiarismAll work submitted for assessment must be the studentsown work. Sources of the work of others mbe acknowledged in full. Plagiarism is an attempt to obtain undeserved academic advantage. Studsuspected of plagiarism will be given the opportunity to explain their plagiarism in the company of lecturer and the course coordinator. If the chief examiner believes that plagiarism has occustudents will normally receive no marks at all for the piece of work concerned. Cases of delibeplagiarism will be dealt with in accordance with the UniversitysDiscipline Statute 4.1.

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In your assignments

you must alwaysacknowledge anytype of contento datao factual informationo opinionso ideaso tables & graphso imageso

video clips

Ma

which you obtain from other sources

o textbookso journalso reportso

theseso websiteso conference paperso course notes

with an in-text citation and reference list entry.

If you have used anyone elses work without acknowledgingthe source, you have plagiarised.

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Plagiarism includes:Copying or cutting-and-pasting:

text word-for-word without quotation marks and reference to the author - paragraphs,

sentences, or phrases anypart of another students work including images, graphs, tables and calculations

Submitting: work that has already been submitted for assessment in another course or unit - including your

own work work under your own name that someone else has done for you

How to avoid plagiarism:

If you include anyinformation or other content that you did not create yourself, you must acknowledge it with ancitation and reference list entry.

Never write an assignment with source material open in front of you: write from your own notes.

Alwaysrecord the source of information, ideas, data, figures, images you intend to use in an assignment.

UseTurnitin.

Ma

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What is Turnitin?

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What is Turnitin?

Turnitin is text-matching softwareto assist students and staff in understanding and supporting the eand appropriate use of materials. The software was introduced by the University in late 2013 and willused for the first time University wide in semester one 2014. Turnitin will be integrated into the assignmodule in Moodle. This means that assignments that use Turnitin will be set up a bit differently than Massignments in the past. Learn how to set up a Turnitin assignment in Moodle.

How does Turnitin work?

Assignments are submitted via Turnitin in Moodle

The software compares the assignment text to a database of more than 12 billion pages of digital co

The software outputs a similarity report (for lecturers) indicating sections of the assignment that matin the database

Further information on Turnitin and how to use it

http://www.vle.monash.edu/supporttraining/learnbytech/turnitin/index.html
http://www.vle.monash.edu/supporttraining/learnbytech/turnitin/index.htmlhttp://www.vle.monash.edu/supporttraining/learnbytech/turnitin/index.htmlhttp://www.vle.monash.edu/supporttraining/learnbytech/turnitin/index.htmlhttp://www.vle.monash.edu/supporttraining/learnbytech/turnitin/index.html

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What is Turnitin?

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Turnitinwhats in it for students?

If made available for the unit: students may:

1.Submit a draft of their work via the assignment submission link

2.Check the similarity of their work with the existing turnitin database (A similarity report will be generated and be downloaded by the student).

3.Resubmit their final work for assessment by re-uploading the assignment to the submission link.

Limitations:

1.Students may only check their assignment once every 24 hours

2.The system will only consider similarity against pre-existing work in the turnitin database it will not comparefrom one student to the other in the same class. However, when the academic runs the final report, there will bcheck made both with the pre-existing database and with all of the submissions of the class.

3.A student who wishes to compare their draft work with the database needs to be aware that once the submisdeadline has passed, their draft would be taken as their final submission. Students are responsible to ensure th

their final submission is uploaded priorto the submission deadline.

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Poor note taking can lead to plagiarism Record publication details first: author, title, year, journal, publisher, url

When making a note:

summarisethe point in your mind first write without looking at the source material go back to the source to checkspelling, numerical values, etc

When writing notes, do not include the grammar; use diagrams, symbols and abbreviations

show meaning.

Mark any word-for-word copies with quotation marks and note the page number.

Clearly distinguish your own ideas from ideas of other authors and researchers.

Beware the paraphrasing trap Making small changes to the original vocabulary, sentence structure or paragraph structure is

plagiarism it is too close to the original.

Write whatYOUwant to say inYOURown way fromYOURnotes.

Cite the source of the information or idea.

Ma

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WorkshopsThe Hargrave Andrew Library (Blg 30 Clayton campus) runs workshops on avoiding plagiStudents are encouraged to attendEngineering Essentials: Academic integrity and

avoiding plagiarism. Register on the Library class boo king sys tem:

https://my.monash.edu.au/news-and-events/bookings/library/

Other resourcesDemystifying citing and referencing: http://monash.edu.au/library/skills/resources/tutorials/citing/

Language and Learning Online:http://www.monash.edu.au/lls/llonline/writing/general/plagiarism/index.xml

Dates for Semester 1, 2014:

Monday 3 March, 2014 - 3:00pm - 4:00pm

Tuesday 4 March, 2014 - 2:00pm - 3:00pm

Wednesday 5 March, 2014 - 11:00am - 12:00pm

Thursday 6 March, 2014 - 10:00am - 11:00am or 4:00pm - 5:00pm

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https://my.monash.edu.au/news-and-events/bookings/library/http://monash.edu.au/library/skills/resources/tutorials/citing/http://www.monash.edu.au/lls/llonline/writing/general/plagiarism/index.xmlhttp://www.monash.edu.au/lls/llonline/writing/general/plagiarism/index.xmlhttp://monash.edu.au/library/skills/resources/tutorials/citing/https://my.monash.edu.au/news-and-events/bookings/library/https://my.monash.edu.au/news-and-events/bookings/library/https://my.monash.edu.au/news-and-events/bookings/library/https://my.monash.edu.au/news-and-events/bookings/library/https://my.monash.edu.au/news-and-events/bookings/library/

eng1050lecture1 s1 2014

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