CCMAS Course Search

Historical development of Metallurgical Engineering: From arts to science and from science to engineering. Differentiation between metallurgy and metallurgical engineering. Importance of metals and metal products in human civilization: Stone age, copper age, iron age, nuclear age, ICT age; imagine the world without metals! A perusal at the Periodic Table; classification of metals; Metallurgical Engineering: definition and classification: Process (Extractive) metallurgical engineering. Get acquainted with terms like roasting calcination, agglomeration, smelting, smelters contract, refining and furnaces. Physical metallurgical engineering: structure - property -application relationship. Mechanical metallurgical engineering: Stress - strain relationship and application. Metallurgical engineering: ferrous & non-ferrous industries as basis for industrialisation and national economic development. Nigerian metallurgical industry; professional bodies such as Nigerian Society of Engineers, Nigerian Metallurgical Society (NMS), etc. 200 Level

Introduction: Role of welding, brazing and soldering in manufacturing processes. Welding: Definition, principle, classification and scope. Types of welding processes – gas, arc, resistance, flash, friction and electro-welding, among others. Brief treatment of new processes such as explosive welding, plasma welding and electro-beam welding. Weld rods and fluxes protective atmosphere, weld defect and weldability of metals and alloys. The effect of welding processes and mechanical properties of weldments. Heat Affected Zone (HAZ). Heat treatment of welds, design of welded joint; brazing: scope and limitations, types, processes, brazing of commercially important ferrous and non-ferrous metals and alloys; soldering: processes, soldering alloys and application of soldering techniques.

Metallurgical engineers and techno-economic consideration; selection of engineering materials by the metallurgical engineer for specific applications such as in oil and gas, saline environment, construction, high temperature environment, nuclear, electronics, aerospace industries based on techno-economic considerations. Physical, mechanical, chemical, electrical, magnetic and thermal properties of engineering materials: metals, ceramics, polymers, composite and their production. Structure-properties-application relationship of materials and their selection based on cost-benefit analysis, environmental friendliness and safety. Factors governing the selection of materials for specific applications needs.

Mechanical behaviour of materials, stress-strain diagrams for ductile and brittle metals, stress- strain relations, principal stresses, strains and directions, the Monrcircle, elastic and plastic deformations, elastic constants, plastic yield criteria. Basic concepts of dislocations, dislocation, density and dislocation motion; conservative and non-conservative motion, dislocation motion and plastic deformation. Mechanism of deformation: slip, twining, grain boundary sliding, directional diffusion. Creep, theories of creep and stress rupture. Concepts of cyclic loading and fatigue. Strengthening mechanism in metals and alloys, solid solutions, precipitation and dispersion hardening, grain size strengthening, strain hardening, martensite hardening, etc. Composite materials and fibre strengthening, hardness and strength considerations in deformation processing, effects of cold-working, hot-working and annealing.

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. 4. Describe at least four (4) Valuer's obligation to his or her client, to other valuers, and to the society. 5. Demonstrate with example the engineering valuation methods, valuation standards, and practices. 6. Prepare engineering valuation and appraisal reports and review 7. Discuss expert witnessing and ethics in valuation. 8. Determine price, cost, value, depreciation and obsolescence in real property, personal property, personal property, machinery and equipment, oil, gas, mines, and quarries valuation.

Design of metallurgical processing systems: whether it is extractive, physical or production system; method of estimating process costs and profitability; performance selection and design of process equipment; integration of process units into a working plant: its construction and operation; design of metallurgical equipment: furnace, ball mills, flotation cells, mixers, sinters and metals forming mills; personnel management

Mineral processing technology as physical and physico-chemical value addition process to mineral resource. Classification of mining title deeds into classes A-E in Nigeria. Application of mineralogy to mineral processing in an existing mill and/or process design for a new mineral processing plant. Application of scientific principles to mineral processing technology. Sampling and sampling methods. Comminution (to effect liberation) and comminution theories. Particle size analysis using vibrating set of screen. Concentration methods: physical separation methods such as sorting, gravity separation, magnetic separation and electrostatics separation. Physico-chemical separation methods such as froth floatation and coal gold agglomeration.

Nigerian history, culture and art up to 1800 (Yoruba, Hausa and Igbo peoples and cultures; peoples and cultures of the minority ethnic groups). Nigeria under colonial rule (advent of colonial rule in Nigeria; colonial administration of Nigeria). Evolution of Nigeria as a political unit (amalgamation of Nigeria in 1914; formation of political parties in Nigeria; nationalist movement and struggle for independence). Nigeria and challenges of nation building (military intervention in Nigerian politics; Nigerian Civil War). Concepts of trade and economics of self- reliance (indigenous trade and market system; indigenous apprenticeship system among Nigerian peoples; trade, skill acquisition and self-reliance). Social justice and national development (definition and classification of law); Judiciary and fundamental rights. Individuals, norms and values (basic Nigerian norms and values, patterns of citizenship acquisition; citizenship and civic responsibilities; indigenous languages, usage and development; negative attitudes and conducts [Cultism, kidnapping and other related social vices]). Re-orientation, moral and national values (The 3Rs – Reconstruction, Rehabilitation and Re-orientation; re-orientation strategies: Operation Feed the Nation (OFN), Green Revolution, Austerity Measures, War Against Indiscipline and Corruption (WAIC), Mass Mobilization for Self-Reliance, Social Justice and Economic Recovery (MAMSER), National Orientation Agency (NOA). Current socio-political and cultural developments in Nigeria.

Review of the Periodic Table; classification and sub-classification of extractive metallurgy. Pyro-metallurgy: Theory and application. Flow sheet development for lead, zinc, tin, gold and nickel. Hydrometallurgy Review: Theory and application flow sheet development for aluminium, copper, gold, silver and platinum group of metal (PGM). Electrometallurgy: Theory and application. Flow sheet development for gold and silver. Application of Ellingham diagram, McCabe Thiele diagram and Pourbaix diagram in pyro-metallurgy. Hydrometallurgy and electrometallurgy processing of minerals/metals respectively. Refining of metals with particular reference to gold, silver, copper and tin. Techno-economic and environmental issue in the design and operation of metal extraction and refining plants.