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Ductile iron, an alloy of iron and carbon, is a special type of cast iron having properties comparable to steel. Due to its unique microstructure, ductile iron exhibits high strength, durability, flexibility, and elasticity.
Ductile iron is not a single material but part of a group of materials which can be produced with a wide range of properties through control of their microstructure. The common defining characteristic of this group of materials is the shape of the graphite. In ductile irons, graphite is in the form of nodules rather than flakes as in grey iron.
Ductile iron, also known as nodular cast iron or nodular iron, is a cast iron alloy with distinctive properties, including impact and fatigue resistance, elongation, and wear resistance. These properties arise from the spheroidal graphite structures within the metal’s microstructure.
INTRODUCTION. The data and information in this booklet have been collected for use in the Materials Courses in Part I of the Engineering Tripos (as well as in Part II, and the Manufacturing Engineering Tripos). Numerical data are presented in tabulated and graphical form, and a summary of useful formulae is included.
A1. Or. A2. (or larger groupings) where P 1, P 2, P are material properties, n and m are powers (usually -1, -1/2, +1/2 or +1), and C and C. er and upper limits between. which theL valuesHof the property-group lies. The correlations exert tight constraints on the data, giving the “paterns” of property envelo.
Ductile irons belongs to the cast iron family. As the name suggests they are more ductile than most cast irons and have similar properties to grey irons i.e. good hardness, wear and corrosion resistance. Tensile and yield strengths vary widely with different microstructures.
A ductile iron generally has higher hardenability than a eutectoid steel with comparable alloy content. The article also discusses the physical properties of ductile iron, including density, thermal conductivity, electrical conductivity, electrical resistivity, and magnetic properties.
