JNTUK B.Tech Mechanical Metallurgy gives you detail information of Mechanical Metallurgy R13 syllabus It will be help full to understand you complete curriculum of the year.
Course Objective: This subject deals with defects in materials, various hardness methods, fatigue and impact tests.
UNIT- I : Learning Objective: The topic deals with various types of dislocations, slip and twinning.
Metallurgical Fundamentals: Critical resolved shear stress. Defects in crystalline materials Point defects and line defects. The concept of dislocation – Edge dislocation and screw dislocation. Interaction between dislocations, sessile dislocation, glissile dislocation, Energy of a dislocation, dislocation climb, Jogs, Forces on dislocations. Frank Reed source, slip and twinning.
UNIT- II : Learning Objective: To understand the principles of various hardness tests and theories of fracture.
Hardness Test: Methods of hardness testing Brinell, Vickers, Rockwell, Rockwell superficial, Shore and Poldi methods, Microhardness test, relationship between hardness and other mechanical properties. Fracture: Elementary theories of fracture, Griffiths theory of brittle fracture, Ductile Fracture, Notch sensitivity.
UNIT III : Learning Objective: To understand the principle of tensile test, compression Test etc.
The Tension Test: Mechanism of elastic action, linear elastic properties. Engineering stressstrain and True stress-strain curve. Tensile properties, conditions for necking, effect of temperature and strain rate on tensile properties. The Compression Test: Elastic and in-elastic action in compression, elastic and in-elastic properties in compression. compression Test
UNIT IV : Learning Objective: To understand about transition temperature and the factors that affect transition temperature.
The Impact Test: Notched bar impact test and its significance, Charpy and Izod Tests, fracture toughness testing – COD and CTOD tests, significance of transition temperature curve, Metallurgical factors affecting on transition temperature, temper embrittlement.
UNIT- V : Learning Objective: To know the fundamentals of fatigue, its failure and the factors affecting fatigue failure.
Fatigue Test: Introduction, Stress cycles, S-N Curve, Effect of mean stress, Mechanism of fatigue failure, effect of stress concentration, size, surface condition and environments on fatigue. Effect of metallurgical variables on fatigue. Low cycle fatigue – High cycle fatigue.
UNIT -VI : Learning Objective: To know about creep, its failure and the factors affecting creep failure.
Creep and Stress Rupture: Introduction, The creep curve, Stress-rupture test, Structural changes during creep, Mechanism of creep deformation, theories of creep. Fracture at elevated temperature, Effect of Metallurgical variables on creep.
(Assessment: The student should be evaluated based on the assignments and objective tests. The student’s analytical abilities (with special focus on academically weak students) should be tested periodically in classes by giving problems). Emphasis should be given by conducting tutorial classes at the end of each unit.
TEXT BOOK
- Mechanical Metallurgy – GE Dieter
REFERENCES
- Engineering Materials Science – CW Richards
- Mechanical behavior of material-A.H.Courteny
- Mechanical behavior-Ed.Wulf.
- Mechanical Metallurgy White & LeMay.
For more information about all JNTU updates please stay connected to us on FB and don’t hesitate to ask any questions in the comment.