Engineering Materials Laboratory

At the end of this course, the students should be able to: 1. discuss the various laboratory procedure and methods for engineering materials; 2. discuss principles and different methods of hardness measurement; 3. discuss the correlations among different types of hardness measurement and correlations of hardness with tensile strength; 4. use various types of hardness testers; 5. use a computer-controlled universal testing machine (UTM) to perform standard tensile test and test procedure; 6. observe the tensile behaviour of metal and polymer materials, 7. explain material properties from stress-strain curves obtained from tensile tests and methods for toughness measurement with impact tests; 8. discuss the procedre for specimen preparation for macro and microscopic examination, compound optical microscopes and metallography. 9. describe the heat treatment principles and methods; and 10. examine surface characteristics of engineering materials.

Materials testing and evaluation, laboratory procedures and techniques, metallography, heat treatment, phase diagrams, hardenability, and mechanical testing. Minimum Academic Standards Equipment List of Laboratories/Workshops/Equipment/Instruments/Tools Foundry Laboratory 1. Melting furnaces (Crucible, Electric arc, Rotary) 2. Oil fired crucible furnace 3. Sand moulding equipment 4. Sand testing equipment 5. Crucibles of various sizes 6. Moulding sands 7. Sand blasting machines 8. Pattern making machine 9. other foundry accessories 10. Scale balance 11. Digital weighing balance 12. Scraps yard Heat Treatment Laboratory 1. Heat treatment furnaces (1000oC, 1200oC, 1800oC, 2000oC) 2. vens (200, 300, 600oC) 3. Salt bath furnace and accessories 4. Thermocouples of various temperatures 5. Pyrometer 6. Quenching bath (Oil & water) 7. Jominy end quench apparatus Machining Workshop 1. Lathe machine (Standard) 2. Drilling machine 3. Boring machine 4. Power cutting machine 5. Bench vices 6. Files of different sizes 7. Cooling lubricants Metallography Laboratory 1. Thin sectioning machine and the discs 2. Hot/Cold mounting machines and accessories 3. Automatic grinding/polishing machines and accessories 4. Hot/cold sample mounting materials 5. Optical microscopes (x1000) with inbuild camera 6. Image analyser 7. Scanning Electron microscope (SEM) with EDS 8. X-ray Differential machines, AAS 9. Etchants 10. Desiccators 11. Air drier 12. Metal Analyser 13. Fume cupboard Minimum of 10 Desktop Computers Minimum of 15 Laptop Computers (1TB HDD,500GB Memory, Webcam, Internet ready) Materials Testing Laboratory 1. Universal tensile test machine 2. Hardness tester machine (BHN, Vickers & Rockwell) 3. Impact energy testing machine 4. Fatigue/creep testing machine Corrosion Testing Laboratory 1. Potentiometer equipment and the kits 2. Digital weighing balance scale Welding and Fabrication Workshop 1. Arc welding machine 2. Gas welding machine 3. Oxygen gas and accessories 4. Acetylene gas and accessories 5. Electrodes of different types 6. Electrode holders 7. Other welding accessories (hand gloves, eye goggles, boots) Staffing Academic Staff The NUC guidelines on staff/student ratio of 1:15 for Engineering and Technology departments shall apply. However, there should be a minimum of six full-time equivalents of Staff in the department. There is need to have a reasonable number of Staff with doctoral degrees as well as sufficient industrial experience. With a minimum load of 15 Units per semester for students and a minimum of six full-time equivalent of staff in each programme, staff should have a maximum of 15 contact hours per week for lectures, tutorials, practical’s and supervision of projects. NUC requirement encourages all academic staff to have PhD degrees; hence appointment of academic staff is preferably to the Lecturer cadre. Only in exceptional cases are candidates with great promise appointed to Graduate Assistant and Assistant Lecturer positions for the purpose of being developed to the Lecturer cadre as registered PhD candidates. Academic Support Personnel Teaching Assistant/Demonstrators to help lecturers in the conduct of tutorials, practical’s and field work. This category of personnel is not expected to be regular staff as they are to be paid on the basis of approved hourly rate. Administrative Support Staff The services of the administrative support staff are indispensable in the proper administration of the departments and faculty offices. It is important to recruit very competent senior staff that are computer literate. Technical Support Personnel The services of technical support staff, which are indispensable in the proper running of laboratories and workshop/studios are required. It is important to recruit very competent senior technical staff to maintain teaching and research equipment. They are also to undergo regular training to keep them abreast of developments in equipment operation and maintenance. The minimum of academic staff to technical staff ratio of 5:1 should be maintained. Minimum Number of Staff 1. There should be a minimum of two PhDs and four M.Eng degree holders full-time academic staff to mount the programme; 2. Each workshop or laboratory should have an adequate number of staff with the right mix, such that each unit or section in that workshop or laboratory can run efficiently; and 3. There should be an adequate number of administrative staff of the appropriate caliber for the office of the Head of Department to run. Student/Staff Ratio The minimum staff-to-student ratio should be 1:15 from 200 level to 500 level. Library Subject to the general standards specified by NUC, the central and/or faculty/departmental libraries should have: 1. Physical holdings of current books in the relevant fundamental science and engineering subject areas; 2. Physical holdings of current books in the core mechanical engineering subject areas; 3. Physical holdings of current journals in the core materials and Metallurgical engineering subject areas; 4. E-subscription of current books in the relevant fundamental science and engineering subject areas; 5. E-subscription of current books in the core mechanical engineering subject areas; and 6. E-subscription of current journals in the core mechanical engineering subject areas. Classrooms, Laboratory, Workshops, Clinics and Offices The NUC recommends the following physical space requirement: Academic m2 Professor’s Office 18.50 Head of Department’s Office 18.50 Tutorial Teaching Staff Space 13.50 Other Teaching Staff Space 7.00 Technical Staff Space 7.00 Science Staff Research Laboratory 16.50 Engineering Staff Research Laboratory 14.50 Seminar Space per student 1.85 Drawing Office Space (A.O. Board) (Per Student) 4.60 Drawing Office Space (A.I. Board) (Per Student) 3.70 Laboratory Space 7.50 Non-Academic Secretarial Space 7.00 Office Facilities S/No Office No in Room Facilities 1. HOD 1 Table, chairs, A/C, filing cabinet, bookshelves, computer unit, Secretary and facilities. 2. Professor 1 Table, chairs, A/C, filing cabinet, bookshelves, computer unit, Secretary and facilities. 3. Reader 1 Table, chairs, A/C, filing cabinet, bookshelves, computer unit. 4. Senior 1 Table, chairs, A/C, filing cabinet, bookshelves, Lecturer computer unit. 5. Lecturer I 2 Table, chairs, fan, filing cabinet, bookshelves. 6. Lecturer II 3 Table, chairs, fan, filing cabinet, bookshelves B.Eng. Mineral Processing and Chemical