Mechanical Engg

Heat treatment • Phase diagram – Iron-carbon diagram • TTT diagram for carbon steel • Heat Treatment processes •Annealing •Normalising •Tempering •Surface…

Continuous casting and hot rolling • Metal is melted, cast and hot rolled continuously through a series of rolling mills within the same process. • Usually for steel…

Slide 1 Heat Stress in Dairy Cattle Akrum Hamdy Akrum Hamdy Slide 2 Introduction All animals have a zone of thermo neutral temperatures conducive to normal function All animals…

Slide 1 MATERIAL SCIENCE Slide 2 Introduction  “A combination of heating and cooling operation, timed and applied to a metal or alloy in the solid state in a way that…

CHAPTER -1 INTRODUCTION 1.1 Basics of Heat treatment 1.1.1 Hardening processes The general purpose of heat treatment process is to vary the hardness of the metal or to produce…

Heat treatment Processes Heat treatment of sttel Hardnening Normalizing Annealing Tempering three basic processs in heat treatment are hardening annealing and normalizing…

HEAT TREATMENT Pure Iron In the pure state it is a very soft grey metal of no commercial use Wrought Iron Has approx 0.05% carbon Used since about 2000 BC Is stronger than…

Characteristics of Residual Stress They are elastic in Nature They are self equilibrating Any disturbance like removal of material or introduction of thermal load will alter…

1. 1 HEAT TREATMENT OF PRESSURE VESSELS 2. 2 HEAT TREATMENT MECHANICAL PROPERTIES OF METALS & ALLOYS DEPEND ON  CHEMISTRY (ALLOYING ELEMENTS) &  HEAT TREATMENT…