Applied Engineering Materials

Transcription

1 Applied Engineering Materials (Tillämpad materialteknik) Course MT7151, HT06 5 Credits Liu-Ying Wei, Materialvetenskap Course plan Week date time rum content 44 Tuesday 31/ D204 Materials for engineering 44 Wednesday 1/ D204 Crystal structures 44 Thursday 2/ D204 cancelled 45 Monday 6/ D204 Stress and strain 45 Wednesday 8/ D204 Creep 45 Thursday 9/ D204 exercise 1, stress and strain 46 Monday 13/ D204 Materials selection, To start a project (group, title, plan) 46 Wednesday 15/ D204 Fracture toughness and fatigue 46 Thursday 16/ D204 exercise 2, creep 47 Monday 20/ D204 phase diagram 47 Tuesday 21/ D204 heat treatment/ TTT diagram 47 Wednesday 22/ Library Literature searching 48 Monday 27/ D204 exercise 3, phase diagram 48 Tuesday 28/ D204 Steel, cast irons 48 Wednesday 29/ D204 exercise 4, TTT diagram, Fe-C system 49 Monday 4/ D204 Ti alloys 49 Tuesday 5/ D204 Superalloys 49 Wednesday 6/ D204 exercise 5, Ti alloys and superalloys 50 Monday 11/ D204 Al alloys, Mg alloys 50 Tuesday 12/ D204 Ceramics 50 Wednesday 13/ D204 Polymers 51 Monday 18/ D204 Composite 51 Tuesday 19/ D204 Project presentation I 51 Wednesday 20/ D204 Summary, last years exams Project presentation II 1

2 2. Course literature Materials Science and Engineering: An Introduction, by William D. Callister, Jr., 7th edition, ISBN: (available at kfsab, skr) contact Brita Ohlin Butiksansvarig KFS Bokhandel Malmö Direkt Examination a written examination of four hours will correspond to 60% full marks, project work or case studies will correspond the remainder. The written examination will be held at the end of the course 4. Course examiner Liu-Ying Wei (B337, , liu-ying.wei@ts.mah.se) 5. Homepage aspx Homepage aspx MT7151 Tillämpad materialteknik, 5p Applied Engineering Materials 5 credits (7.5 ECTS credits) Syllabus Course information OH-copies from the lectures: Information: Liu-Ying Wei, kursansvarig E-post: liu-ying.wei@ts.mah.se, tel: , rum: B337 Liu-Ying Wei, examinator 2

3 Activities Lectures (1-14) Exercises (1-5) Project work - Materials selection (1-4) Lectures I. The fundamentals 1. Crystall structures 2. Mechanical behaviour 3. Failure analysis 4. Phase diagram-equilibrium microstructural development 5. Heat treatment-phase transformation II. The structural materials 1. Ferrous alloys (steel, cast iron) 2. Nonferrous alloys (Al, Mg, Ti, and superalloys) 3. Ceramics 4. Polymers 5. Composites 3

4 Selection of Structural Materials Lecture: Materials selection, week 46 Monday, 13/11, To start project group Project title Project plan Task for each people in the group Lecture: Literature searching, Wednesday 22/11 Project presentation I, week 51, Tuesday, 19/12, Project presentation II, week 51, Wednesday, 20/12 Project report should be handed in not later than Wednesday 20/12 Material selection for a kitchen knife Turning Tools Made of High Speed Metal By Adrian Rembowski Magnus Andersson By: Firas Matook Andreas Nilsson By: Krister Persson Johan Silow By: Johan Pelinder By: Hanna Larsson Martina Arvidsson Last year projects By: Tobias Söderlind Dennis Thornsäter 4

5 Materials Science and Engineering Metallurgy Ceramic engineering, Polymer chemistry Condensed matter physics Physical chemistry Applied Material Engineering Course Objectives 1. To give an overall knowledge of selected structural materials with an emphasis on application of the principles of materials science. 2. To study the relationships between processing and microstructure and between microstructure and properties 5

6 Properties are a link between the fundamental issues of materials science and the practical challenges of materials engineering Processing Optical properties of alumina (aluminium oxide) transparent translucent opaque single crystal polycrystalline polycrystalline highly perfect grain boundaries grain boundries + pores 6

7 From structure to properties Porous microstructure in polycrystalline Al 2 O 3 (a) leads to an opaque material (b). Nearly pore-free microstructure in polycrystalline Al 2 O 3 (c) leads to a translucent material. The families of engineering materials The basic families of metals, cermics, glasses, polymers, and elastomers can be combined in various geometries to create composites 7

8 Metals Ceramics Glasses High moduli, high ductility High moduli, lacking in ductility (brittle) Non-crystalline (amorphous) solid, hard, brittle and vulnerable to stress concentrations Polymers (plastics) Low moduli (50 times less than those of metals), easy to shape Elastomers Composite long-chain polymers Combinations of two or more materials, light, stiff, and strong, and they can be tough Room temperature density Room temperature stiffness (Young s modulus) 8

9 Tensile strength Resistance to fracture (Fracture toughness) Periodic table of the elements. Those elements that are inherently metallic in nature are shown in color. 9

10 Periodic table with ceramics compounds indicated by a combination of one or more metallic elements (in light color) with one or more nonmetallic elements (in dark color). Periodic table with the elements associated with commercial polymers in color. 10