EFFECT OF WELDING CONSUMABLES ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A WELDED SA 530 GR 70 STEEL
ABSTRACT
Steel is arguably the world's most ‘advanced” material. It is a very versatile material with a wide range of attractive properties which can be produced at a very competitive cost. It has a diverse range of applications, and is second only to concrete in its annual production tonnage. Steel is not a new invention which leads to a common misperception that “everything is known about steel” amongst those outside its field. Steel is generally defined as a ferrous alloy containing less than 2.0wt%C. The complexity of steel arises with the introduction of further alloying elements into the iron-carbon alloy system. The optimization of alloying content in the iron-carbon system, combined with different mechanical and heat treatment leads to immense opportunities for parameter variations and these are continuously been developed.
Steel is an alloy of iron and carbon and it is initially cast into a malleable form, and it can be changed in shape by forging, rolling or other mechanical processes. The difference between steel and cast iron is that steel do not contain graphite or free carbon. Carbon exists in small quantity in ferrite and majority in cementite. There are different types of steel but we are to deal majorly on mild steel.
CHAPTER ONE
1.1 Introduction
… This chapter will address the background information that motivated this study, the challenges that prompted it, its aim, and its objectives as a preface to subsequent sections of the study. Additional factors include the study's significance, scope, limitations, research questions and hypotheses, and the definition of technical terms.
CHAPTER TWO
2.0 Literature Review
2.1 Introduction
The review of relevant literature is the main topic of this chapter. A literature review covers theoretical and methodological contributions to a certain issue in addition to the state of knowledge at the time of writing. It provides information about the state of the art in relation to the subject you are writing about. It examines the body of work on the chosen subject. The literature evaluation in this study comprises the …
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