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Home » Authors » Daniel Herring
Daniel Herring

Daniel Herring

Dan Herring is president of THE HERRING GROUP Inc., which specializes in consulting services (heat treatment and metallurgy) and technical services (industrial education/training and process/equipment assistance). He is also a research associate professor at the Illinois Institute of Technology/Thermal Processing Technology Center. tel: 630-834-3017; e-mail: dherring@heat-treat-doctor.com; web: www.heat-treat-doctor.com

 

Articles

ARTICLES

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Carbonitriding of Fasteners

Dan herring
Daniel Herring
February 12, 2021
No Comments

The carbonitriding of fasteners is of critical importance to their functionality and one of the most common case-hardening heat treatments. Studying how the process works in this application will shed a great deal of light on all carbonitriding processes.


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Decarburized steel microstructure

Decarburization

Dan herring
Daniel Herring
July 30, 2018
One Comment

There is a group of recurring questions asked of The Heat Treat Doctor, all of which are centered around: “How much surface oxidation is allowable on a steel part?”


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Finely dispersed alloy carbides in a matrix of tempered martensite
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Alloy Carbides

Dan herring
Daniel Herring
July 17, 2018
No Comments

The subject of carbide formation in steels has intrigued The Doctor ever since he first peered into a microscope and observed them. Carbides can be our friend or our enemy.


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Arno Bernard Knives: Bush Baby Series - Giraffe Bone, N690 steel

Just What Do You Call Dirt on Mars, Earth?

Dan herring
Daniel Herring
May 29, 2018
No Comments

Most, if not all, heat treaters – whether they like to admit it or not – enjoy the challenges that present themselves when confronted by a new material or the need to develop a new process recipe to achieve specified properties or results.


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Check out the February 2021 issue of FORGE, featuring our cover story on the "Nucor Steel's SBQ Program", "Back to the Future: Revisiting AM Predictions from 2012", "Pulse-Plasma Nitriding Improves Forging-Die Performance", and much more.

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