Manufacturing Processes: Ferrous Materials Introduction

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20 Questions

Ferrous materials contain iron as their main constituent.

True

Nonferrous materials contain iron in appreciable quantity.

False

Ferrous materials can be significantly altered by heat treatment processes or by addition of small quantities of alloying elements.

True

Pure iron is relatively hard and strong.

False

Carbon rarely exceeds 2% in steel in actual practice.

True

The presence of cementite in steel makes it weaker and softer than pure iron.

False

Plain carbon steel is the only type of steel with carbon as the alloying element.

True

High percentages of sulphur and phosphorus in steel have no detrimental effect on its properties.

False

Mild steel is extensively used for structural work and retains very good weldability up to 0.25% carbon percentage.

True

Medium carbon steel has better weldability than mild steel and is used for making wire ropes.

False

Metal forming processes are also known as chemical working processes.

False

Metal forming is possible for metals or alloys that are not malleable and ductile.

False

Hot working metal forming processes result in better shape, size, and surface finish compared to cold working processes.

False

Plain carbon steel is the only type of steel that does not contain any alloying element.

False

Mild steel loses its weldability when the carbon percentage exceeds 0.25%.

False

Mechanical working improves the ductility of a material.

False

Grain flow lines improve the strength against fracture in mechanically worked parts.

True

Cold working occurs at a temperature above the recrystallisation temperature for the metal or alloy.

False

Hot working involves plastic deformation of metals at a temperature where recovery and recrystallisation take place simultaneously with strain hardening.

True

The recrystallisation temperature for pure metals is roughly half of its melting point.

False

Test your knowledge of ferrous materials, their properties, and applications in manufacturing processes. Learn about the characteristics and uses of ferrous materials such as iron and its alloys.

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