Results for knowledge: 4433

This group of ASTM standard specifications covers a common requirements that, unless otherwise specified in the material specification, apply to rolled steel plates, shapes, sheet...

In practice the external load is applied by a tool and its shape controls the direction of application necessary to achieve the desired flow. The type of tool can be used to classify the different ...

Induction hardening is primarily used for surface hardening. The heating process does not affect the core structure. It is possible to heat a material locally where it is functionally desired. Other sectors of ...

Rapid quenching of austenite to room temperature often results in the formation of martensite, a very hard structure in which the carbon, formerly in solid solution in the austenite, remains in solution in the ...

The traditional route to high strength in steels is by quenching to form martensite that is subsequently reheated or tempered, at an intermediate temperature, increasing the toughness of the steel without too ...

Variations of thermal-spray techniques and the diversity of sprayable materials, along with advanced spray-control systems, have created new opportunities for the thermal-spray industry. Use of the ...

Liquid nitriding or nitriding in a molten salt bath employs the same temperature range as gas nitriding, which is 510 to 580掳C. The case hardening medium is a molten, nitrogen-bearing, fused-salt bath ...

Gas nitriding is a case-hardening process whereby nitrogen is introduced into the surface of a solid ferrous alloy by holding the metal at a suitable temperature in contact with a nitrogenous gas, usually ...

Alloying elements have been shown to have a substantial effect in depressing the Ms temperature. In this article, we will examine the further important effects of alloying elements during the tempering ...