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JNTU 2007-08 III Year II Sem B.Tech.Met.E - Mechanical Metallurgy
Posted Date: 22 Dec 2007 Resource Type: Articles/Knowledge Sharing Category: Syllabus
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Posted By: India Member Level: Diamond
Rating:  Points: 1
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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY
HYDERABAD
III Year B.Tech. Met.E. II-Sem T P C
4+1* 0 4
MECHANICAL METALLURGY
UNIT- I
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
Hardness Test: Methods of hardness testing – Brinell, Vickers, Rockwell, Rockwell superficial, Shore and Poldi methods, Microhardness test, relationship between hardness and other mechanical properties.
UNIT –III
Fracture: Elementary theories of fracture, Griffiths theory of brittle fracture, Ductile Fracture, Notch sensitivity.
UNIT IV
The Tension Test: Mechanism of classic action, linear elastic properties. Engineering stress-strain and True stress-strain curve. Tensile properties, conditions for necking, effect of temperature and strain rate on tensile properties.
UNIT –V
The Compression Test: Elastic and in-elastic action in compression, elastic and in-elastic properties in compression.compression Test.
UNIT –VI
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- VII
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 -VIII
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.
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Responses
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| Author: India 22 Dec 2007 | Member Level: Diamond Points : 3 |
TEXT BOOK:
I. Mechanical Metallurgy - GE Dieter
REFERENCES:
1. Engineering Materials Science - CW Richards
2. Mechanical behavior of material-A.H.Courteny
3. Mechanical behavior-Ed.Wulf.
4. Mechanical Metallurgy –White & Lemay.
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