102324 - MATERIALS ENGINEERING

Subject type: Mandatory

Coordinator: Julián Horrillo Tello

Trimester: Second term

Credits: 4

L'idioma d'impartició serà Català/Castellà. Some materials, terminology and bibliography are in English, so you should have a minimum level.

In block I we will study:
1. Atomic structure and arrangement. types of links. Classification of materials.
2. Movement of atoms: diffusion. Diffusion and heat treatments in metals.
3. Solubility in solids
4. Alloys. Phase diagrams.
5. Hardening of materials: hardening by solid solution, by precipitation, by martensitic transformation, by cold work.

In block II will study:
a) Metals: basic properties. Pure metals and alloys. Designation of the most important alloys. Ferrous alloys. Simple steels and alloy steels. Hardening. Cooling curves. Microstructures and their dependence on the cooling rate. Heat treatments. Non-ferrous alloys: aluminum and its alloys, titanium and its alloys, copper and its alloys, zinc and magnesium alloys. Superalloys. Use of metallic materials in industrial applications.

b) Ceramic materials: basic properties (atomic bond, ordering, imperfections in ceramic materials). Crystalline and non-crystalline ceramic materials. Phase diagrams of ceramics. Ceramics processing. Most important industrial ceramics: silicates, glass. Applications of ceramics.

c) Polymers. Structure of polymers. Formation of polymeric chains. Degree of polymerization. Types of polymers: thermoplastics, thermosets, elastomers. Thermal behavior. Amorphous and semi-crystalline polymers. Polymers for industrial use. Manufacture of industrial polymers. Vulcanization.

In block III it is studied:
Composite materials (composites). Types of compounds and their manufacturing processes. Particle-reinforced composite materials, dispersion-hardened compounds, fiber-reinforced compounds. Laminar composite materials, sandwich or "sandwich" type materials. Wood. Concrete (concrete).

At the end of the course students will be able to:

• Analyze the influence of the manufacturing process on the structure and properties of the material.

• Characterize the mechanical behavior and properties of materials by performing tests.

• Know the possible causes of failures of a material depending on the conditions of service taking into account the specifications and processing by applying the appropriate methodology.

• Perform the selection of materials for the design of components and products, taking into account the specifications and processing by applying the appropriate methodology.

• Identify and evaluate the stresses and stress states to which mechanical structures and systems are subjected.

• Know the mechanisms of transmission of loads and efforts in structures.

• Know and analyze the concepts of stress and strain.

• Know the principles and hypotheses applied to the different methods of calculating structures.

• Calculate and design structural elements subjected to static and variable loads.

• Know and apply the criteria of failure in materials and structures.

• Perform stress and strain measurements.

Additionally, the objectives of:

• Design thermal and thermo-chemical treatments to obtain desired properties of metal components.

• Work as a team and communicate project and work results to non-specialists.

The subject consists of 2 weekly hours and 2 biweekly hours of face-to-face classes in the classroom (large group), where the concepts of theory will be developed, with numerous examples and exercises and 2 biweekly hours of laboratory activities (small group). .

Students have all the information necessary to follow the teacher's explanations and be able to study independently. Students will have access to the notes of the subject on the course website.

Small group sessions are mandatory. In the laboratory practices the students will be divided into teams of a maximum of 4 members to perform the tasks. These activities involve experiments and practical problem solving.

The content of the subject is divided into 3 blocks:

I. Structure of Materials. Basic concepts of materials science.

II. Conventional materials in engineering: a) metals b) ceramics c) polymers

III. Advanced materials: composites

Activity 1
Solving problems related to the structure of materials.

Activity 2
Experimentation: Steel foundation

Activity 3
Experimentation: Torsion test.

Activity 4
Experimentation: Identification and differentiation of Polymers. Comparative analysis of the thermal behavior of thermoplastic polymers and thermostable polymers

Activity 5
Experimentation: Manufacture and flexural testing of composite material.

Activity 6
Problems on metallurgical processes.

Activity 7
Coursework: Critical Essay on Circular Economics and Implications on Materials Engineering.

Activity 8
Coursework: Innovative materials or manufacturing processes.

The subject is passed by doing internships, assignments and written exams.

The 5 practices will have a total weight of 30% in the final grade (each: 6%). Internships involve problem solving and laboratory testing. Attendance at laboratory experiments is mandatory (otherwise, the LAB report will be evaluated).

The written exam grade will consist of a continuous assessment and a final exam. The continuous assessment will include the theoretical topics and will have a weight of 20% in the final grade. The final exam will be held at the end of the course. This exam will include practical problems and some theoretical concepts. The exam mark will have a weight of 20% in the final mark. The examination of books or notes will not be allowed in the exams.

The course work done in groups will have a weight of 20% and the critical article on circular economy will compute 10% of the final grade.

A minimum grade of 40 out of 100 is required in all concepts in order to be assessed.

Unjustified absence in more than 3 classes will result in the loss of the right to assessment.

Askeland, Donald R .: Materials Science and Engineering, Paraninfo Editions, 2001

Ashby, MF; Jones, David RH. Materials for engineering. Vol 1,2. 2008-09. Reverted.

Kalpakjian, Serope; Schmid, Steven R .. Manufacturing, engineering and technology. Pearson Education, 2008.

Las Heras, JM et al: Knowledge of Materials in Engineering, Ed. G. Gili, Barcelona.