hardening temperature
11Diffusion hardening — Schematic cutaway view of a diffusion hardened metal gear Diffusion hardening is a process used in manufacturing that increases the hardness of steels. In diffusion hardening, diffusion occurs between a steel with a low carbon content and a… …
12Cryogenic hardening — is a cryogenic heat treating process where the material is cooled to approximately −185 °C (−301 °F), usually using liquid nitrogen. It can have a profound effect on the mechanical properties of certain steels, provided their composition and …
13surface hardening — ▪ metallurgy treatment of steel by heat or mechanical means to increase the hardness of the outer surface while the core remains relatively soft. The combination of a hard surface and a soft interior is greatly valued in modern engineering… …
14Induction hardening — is a form of heat treatment in which a metal part is heated by induction heating and then quenched. The quenched metal undergoes a martensitic transformation, increasing the hardness and brittleness of the part. Induction hardening is used to… …
15Cold hardening — is the physiological and biochemical process by which an organism prepares for cold weather. Plants Schematic of typical plant cell During the winter months, as the leaves fall off deciduous species and the temperature drops, the cold forces a… …
16age hardening — a process of increasing the hardness and strength by the precipitation of particles of a phase from a supersaturated solid solution alloy. The hardening cycle usually consists of heating or annealing at a temperature sufficiently high to maintain …
17flame hardening — a surface hardening process in which heat is applied by a high temperature flame followed by quenching jets of water. It is usually applied to medium to large size components such as large gears, sprockets, slide ways of machine tools, bearing… …
18induction hardening — a widely used process for the surface hardening of steel. The components are heated by means of an alternating magnetic field to a temperature within or above the transformation range followed by immediate quenching. The core of the component… …
19age hardening — noun spontaneous hardening of a metal which occurs if it is quenched and then stored at ambient temperature or treated with mild heat. Derivatives age hardened adjective …
20air-hardening steel — noun : an alloy steel that can be hardened by cooling from a temperature higher than the transformation range either in air or by quenching in a liquid called also self hardening steel …
