Physical Metallurgy I

At the end of this course, the students should be able to: 1. identify and explain various metallurgical reactions e.g. eutectic, peritectic, monotectic, eutectoid etc; 2. draw iron–carbon/carbide and iron-graphite equilibrium phase diagrams; 3. describe the Fe-C/CO3 in order to classify steel and cast irons according to composition and structures; 4. identify room temperature solidification structures of steel and cast irons; 5. describe the cast structures of steels and cast irons; 6. describe the effect of cooling on structure of steels; 7. discuss the applications of steels and cast irons; 8. explain the heat treatment processes/structures of as-cast and worked steels and cast irons; 9. explain the alloying of metals – ferrous and non-ferrous metals; 10. explain the hardening and tempering processes for steels, cast irons and non-ferrous metals; and 11. explain the different types of high alloy steels, heat treatment and applications.

Introduction to metals and metal alloy systems. The metallic bond and structure of metals. Solidification of pure metals, effect of variables on structure solidification as a nucleation and growth process. Solidification of non-crystalline materials. Preparation of materials to reveal structure, use of microscope, annealing of metals, grain growth, surface energy and shapes of crystals. Deformation, slip, twinning, effect of microstructure, viscous flow. Annealing of deformed metals. Effect of variables. Binary equilibria - alloying, solid solutions. Equilibrium of phase diagrams, complete solubility, Cu/Ni type, Lever rule. Effect of cooling changes in solid, heterogeneous equilibria, Claudius - Chaperon on vapour pressure, phase rule, definitions and proof. Introducing activity and potential P-T diagrams, condensed systems. Peritectics, more complex equilibrium diagrams with maxima, minima compounds, etc. Iron - iron carbide diagram, hysteresis, allotropy. Applications-- cast steel, wrought steels, effect of cooling on structure of steels. Martensite. Quenching, T.T.T. curves, hardenability. Bainite, alloying. Tempering properties and structure. Surface hardening. High alloy steels, cast irons, stability Fe3C, Iron-graphite equilibrium. Copper, copper -- zinc alloys as an example of different strengthening processes. 400 Level GET 402 Engineering Project I (2 Units: C; PH 90) Learning Outcomes At the end of this course, the students should be able to: 1. Complete the design phase of a complex engineering problem sourced from industry or community during the SIWES III programme. 2. Demonstrate the connection between engineering product-making and the theoretical courses they have learned following the applicable industry best practices. Course Contents In the second semester of the 400-level students, preferably in groups, work from the university on the identified industry or organization to tackle industry complex engineering problems. Theoretical issues may be provided by the department faculty or industry experts. During the vacation, students will now work full time with the organisation/industry on the project as part of the SIWES III. The students can also go beyond the department and engage in multidisciplinary undertakings. Literature survey, review of existing systems etc. must be achieved to a satisfactory extent. GET 404 Engineering Valuation and Appraisal (2 Units: C; LH 30) Learning Outcomes At the end of this course, the students should be able to: 1. Identify at least three (3) objectives of engineering valuation work, valuer's primary duty and responsibility and valuation terminologies. 2. Describe at least four (4) Valuer's obligation to his or her client, to other valuers, and to the society. 3. Demonstrate with example the engineering valuation methods, valuation standards, and practices. 4. Prepare engineering valuation and appraisal reports and review 5. Discuss expert witnessing and ethics in valuation. 6. Determine price, cost, value, depreciation and obsolescence in real property, personal property, personal property, machinery and equipment, oil, gas, mines, and quarries valuation.