465064S - Strength of Metallic Alloys

ECTS credits: 7 /189 h study time

Teaching language: Finnish. A visiting lecturer will give a few lectures in English.

Timing: Spring semester period III. Recommended for fourth year of studies.

Learning outcomes: After completion of the course, the student will know the most important phenomena occurring in metals under stress, understand the relationship between them and microstructure, and understand their effect on strength. (S)he will be able to rationalize the effects of stacking fault energy on dislocation character and motion. (S)he will be able to compare and justify the differences in strain hardening seen in different alloys. The student will be able to explain the effects of grain size on static, fatigue and creep strength. (S)he will be able to explain how to determine fatigue and creep properties and list the most important factors affecting these properties. (S)he will be able to interpret Ashby’s deformation maps. The student will be able to explain the most important concepts related to texture.

Contents: Revision of crystallographic and stereographic concepts. Dislocation types and properties. Strengthening mechanisms: cold work, solid solution strengthening, grain refinement, precipitation. Stacking fault energy and its effect on dislocation structure and strengthening. Microstructural changes in fatigue and creep. Fatigue and creep strengthening mechanisms. The effect of texture on properties.

Mode of delivery: Face to face

Learning activities and teaching methods: Lectures and calculation exercises 48 h / independent study 141 h.

Target group: Compulsory in the masters stage for all Mechanical Engineering students majoring in Materials Engineering.

Prerequisites: Before registering for this course the student must have successfully completed the following courses: 465101A An Introduction to Materials for Mechanical Engineering, 465102A Materials for Mechanical Engineering, 465107A An Introduction to Physical Metallurgy, and 465063S Microstructural changes in metallic alloys.

Co-requisites: None.

Recommended reading: Study guide and lecture presentations. Other material: R.W. Cahn and P. Haasen, Physical Metallurgy, 4 ed., North Holland, 2005 (digital version). R.E. Smallman and R.J. Bishop, Modern Physical Metallurgy & Materials Engineering, 6th ed., Butterworth-Heinemann, Elsevier Science Ltd, 1999 (digital version 2002).

Assessment methods and criteria: Final grade assessed on the basis of either continuous assessment or final examinations.

Grading: Pass grades on a scale of 1-5. Grade 0 fail.

Person responsible: Professor Jukka Kömi

Work placements: None.

Additional information:

Last updated: 8.6.2017