Category: Marine Engineering Materials.

Fracture Toughness

Fracture toughness is an indication of the amount of stress required to propagate a preexisting flaw. It is a very…

Fatigue Test and Creep Test

Fatigue is the mechanism whereby cracks grow in a component/structure. Growth only occurs under fluctuating stress. Final failure generally occurs…

Charpy and Izod Impact Tests

An impact blow is delivered to a test specimen by means of a pendulum-type hammer. The impact value of the…

HARDNESS TEST

Fracture of Material – Fracture Mechanics

A fracture is the separation of an object or material into two or more pieces under the action of stress. Engineers need…

WHAT IS PRECIPITATION HARDENING?

Precipitation hardening is a heat treatment process applied to various alloys to significantly increase their yield strength. Rather confusingly, the…

Induction Hardening / Flame Hardening

Induction Hardening Induction hardening is a process used for the surface hardening of steel and other alloy components. The parts…

Nitriding

Plasma nitriding (Ion nitriding) is a plasma supported thermochemical case hardening process used to increase wear resistance, surface hardness and…

WHAT IS CARBURISING

Carburising is a thermochemical process in which carbon is diffused into the surface of low carbon steels to increase the…

What Is Case Hardening

Case hardening is a technique in which the metal surface is reinforced by the adding of a fine layer at…

Martempering/Marquenching

Marquenching/Martempering is a form of heat treatment applied as an interrupted quench of steels typically in a molten salt bath…

Austempering

Austempering is a heat treating process for medium-to-high carbon ferrous metals which produces a metallurgical structure called bainite. It is…