Materials I

Code:

EM0022

Acronym:

MCM I

Keywords
Classification	Keyword
OFICIAL	Materials

Instance: 2007/2008 - 2S

Active?	Yes
Responsible unit:	Materials and Technological Processes Group
Course/CS Responsible:	Master in Mechanical Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
LEM	0	Plano de estudos de transição para 2006/07	2	6	6	56	160
MIEM	243	Syllabus since 2006/2007	2	-	6	56	160
		Plano de estudos de transição para 2006/07	2	-	6	56	160

Teaching language

Portuguese

Objectives

-Acquisition of knowledge about ferrous and non-ferrous alloys aiming optimisation of materials selection
-Understanding of the relationships between structure and mechanical behaviour of materials.
-Learn how to obtain different microstructures in steels, cast irons and non-ferrous alloys: heat treatments

Program

treatments

IRON-CARBON ALLOYS

1 - The Iron-Carbon equilibrium diagram
1.1 Allotropic forms of Iron
1.2 Phases and structures within the iron-iron carbide equilibrium diagram
1.3 Effect of alloying elements on critical points and lines of Fe-C diagram

2 - Austenite Isothermal and Continuous Cooling Transformation Diagrams
2.1 Effect of alloying elements
2.2 Effect of austenitizing conditions

3 - Martensitic reactions. Concept of hardenability
4 - Heat Treatments for steels
5 - Construction Steels
5.1 Wrought plain carbon steels. Mechanical properties. Heat Treatments.
5.2 Alloy steels. Mechanical properties. Heat Treatments
5.3 Classification of steels based upon:
i) Chemical Composition
ii) Use
5.4 Thermochemical treatments: carburizing, nitridind and carbonitriding.

6 - Tool Steels
6.1 Classification of tool steels adopted by AISI-SAE
6.2 Hardness and hardenability in tool stteels
6.3 Importance of austenitizing temperature in tool steels
6.4 Cold and Hot work tool steels.
6.5 High speed tool steels. Heat treatments. Residual austenite evolution during tempering


7 - Stainless Steels
7.1 Structural types: ferritic, austenitic and martensitic types
7.2 Types of corrosion in stainless steels: galvanic, pitting and intergranular corrosion
7.3 Heat treatments in stainless steels
7.4 Mechanical Properties at low and high temperatures

8 - Precipitation-hardening steels
8.1 Heat treatments of maraging steels
8.2 Mechanical properties. Advantages and limitations.

9 - Cast Irons. Introduction. Types of cast iron.
9.1 Factors affecting graphite formation both in solid and liquid state
9.2 Grey cast irons. Importance of inoculation. Effects of matrix type and graphite form on mechanical properties.
9.3 Ductile cast irons. Importance of nodulizing. Mechanical properties of ductile cast irons
9.4 Malleable cast irons. Heat treatments and properties for malleable cast irons

NON-FERROUS ALLOYS
10 - Copper alloys
10.1 Properties of pure copper
10.2 Copper- Zinc alloys: brasses. Structural types and mechanical properties
i) Monophasic alloys
ii) Biphasic alloys
10.3 Specific corrosion problems in brasses
10.4 Copper-Tin alloys: bronzes
i) Types of bronzes
ii) The importance of bronzes as anti-friction alloys

11 - Aluminium alloys
11.1 Non and Heat-treatable alloys
11.2 Precipitation hardening for the Aluminium alloys
11.3 Cast Aluminium alloys.

12 - Zinc alloys. Magnesium alloys. Types and mechanical properties. Heat Treatments
13 - Titanium alloys. Stuctural types. Mechanical properties and heat treatments. Shape memory alloys.

Mandatory literature

Askeland, Donald R.; The science and engineering of materials. ISBN: 0-7487-4083-X
Smith, William F.; Principios de ciência e engenharia dos materiais. ISBN: 972-8298-68-4
Soares, Pinto; Aços

Complementary Bibliography

Rauter, R.O.; Aços de Ferramentas, Livros Técnicos e Científicos Ed, Rio de Janeiro, 1994

Teaching methods and learning activities

Students will attend theoretical classes and laboratory classes. Here, they are supposed
to do study a metallic alloy . The basic steps of this will be:
1-Bibliography survey of properties for studied metallic alloy
2-Comparison of each alloy with alloys of other groups
3-Experimental study about the influence of some heat treatments on the mechanical behaviour of the studied alloy

keywords

Technological sciences > Engineering > Materials engineering

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Subject Classes	Participação presencial	56,00
	Total:	-	0,00

Eligibility for exams

Presence of at least 75% of laboratory classes is mandatory to final exam admission

Calculation formula of final grade

Report on experimental study (30%) + final exam (70%)

Special assessment (TE, DA, ...)

Final exam