JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Overview

Course Overview: The aim is to introduce students the overview of the properties of materials used in engineering manufacturing process. The course covers basic concept of ferrous, non-ferrous metals and its alloys. It emphasizes on transformation of iron at various temperatures. It briefly describes the heat treatment given to iron and its alloys. It gives the general overview idea of composite materials.

Course Objectives

This course has the basic idea of the properties of steal and ferrous

metals. The objectives aim to:

• 1. Identify the basic crystalline structure of steal.
• 2. Understand the concept of TTT.
• 3. Describe the various heat treatment methods to obtain the desired properties.
• 4. Describe the composition of carbon contents in steel.
• 5. Analyze the different forms of iron obtained during heating of steel.
• 6. Understand the properties of non-ferrous alloys.
• 7. Understand requirement.

Course Outcomes

At the end of the course the students are able to:

• 1. This subject gives student a technical knowledge about behavior of metals.
• 2. Identify the crystalline structure of steel.
• 3. Understand the theory of time temperature and transformation.
• 4. Determination of different uses of heat treatment in steel.
• 5. Distinguish between the various forms of steel.
• 6. Understand the properties of non-ferrous alloys.
• 7. Describe the various uses of composite materials..

UNIT - I

Structure of Metals: Crystallography, Miller’s indices, Packing Efficiency, Density calculations. Grains and Grain Boundaries. Effect of grain size on the properties. Determination of grain size by different methods. Constitution of Alloys: Necessity of alloying, Types of solid solutions, Hume - Rothery rules, Intermediate alloy phases.

UNIT - II

Phase Diagrams: Construction and interpretation of phase diagrams, Phase rule. Lever rule. Binary phase Diagrams, Isomorphous, Eutectic and Eutectoid transformations with examples.

UNIT - III

Steels: Iron-Carbon Phase Diagram and Heat Treatment: Study of Fe-Fe3C phase diagram. Construction of TTT diagrams. Annealing, Normalizing, Hardening and Tempering of steels, Hardenability. Alloy steels.

UNIT - IV

Cast Irons: Structure and properties of White Cast iron, Malleable Cast iron, Grey cast iron. Engineering Materials-III: Non-ferrous Metals and Alloys: Structure and properties of copper and its alloys, Aluminium and its alloys, Al-Cu phase diagram, Titanium and its alloys.

UNIT - V

Ceramics, Polymers and Composites: Crystalline ceramics, glasses, cermets: structure, properties and applications. Classification, properties and applications of composites. Classification, Properties and applications of Polymers.

TEXT BOOKS:

• 1. Material Science and Metallurgy/ Kodgire
• 2. Essentials of Materials Science and engineering / Donald R. Askeland / Thomson.

REFERENCE BOOKS:

• 1. Introduction to Physical Metallurgy / Sidney H. Avner.
• 2. Materials Science and engineering / William and callister.
• 3. Elements of Material science / V. Rahghavan B.TECH. MECHANICAL ENGINEERING (MATERIAL SCIENCE AND NANOTECHNOLOGY)