materials and metallurgy
Case hardening basics: Nitrocarburizing vs. carbonitriding
It’s easy to get lost in the chemistry—and the nomenclature—behind heat-treating processes. There’s peace of mind in knowing…
September 30, 2021 · Taylor EmmaAuthor: Taylor Emma
A senior editor for The Mars that left the company to join the team of SenseCentral as a news editor and content creator. An artist by nature who enjoys video games, guitars, action figures, cooking, painting, drawing and good music.
materials and metallurgy
Carbonitriding
Carbonitriding is an austenitic (above A3) case hardening process similar to carburising, with the addition of nitrogen (via…
September 30, 2021 · Taylor Emmamaterials and metallurgy
Nitriding
Large gear for an industrial application nitrided to a 0.040″ case depth. Gear measures 12′ in diameter by…
September 30, 2021 · Taylor Emmamaterials and metallurgy
Carburizing
Carburizing Heat Treatment for Machined Gears, Machined Parts and StampingsCarburizing steel produces a hard, carbon-rich case on the…
September 30, 2021 · Taylor Emmamaterials and metallurgy
What Is Case Hardening
Case hardening is a technique in which the metal surface is reinforced by the adding of a fine…
September 30, 2021 · Taylor Emmamaterials and metallurgy
Martempering/Marquenching
Marquenching/Martempering is a form of heat treatment applied as an interrupted quench of steels typically in a molten…
September 30, 2021 · Taylor Emmamaterials and metallurgy
Austempering
Austempering is a heat treating process for medium-to-high carbon ferrous metals which produces a metallurgical structure called bainite.…
September 30, 2021 · Taylor Emmamaterials and metallurgy
Continuous Cooling Transformation Diagrams
In the last column, we discussed the construction and application of Time Temperature Transformation or Isothermal Transformation diagrams.…
September 30, 2021 · Taylor Emmamaterials and metallurgy
I-T Diagram and Cooling Curves
Phase Diagrams are limited in their usefulness because they can only predict the microstructure that will result for…
September 30, 2021 · Taylor Emmamaterials and metallurgy
MARTEMPERING AND AUSTEMPERING
It will be readily appreciated that the quenching operation used in hardening introduces internal stresses into the steel.…
September 30, 2021 · Taylor Emma