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Home » Keywords » hardness

Items Tagged with 'hardness'

ARTICLES

Mohs Hardness Scale of Metals

Infographic: Mohs Hardness Scale of Metals

A visual representation of the Mohs Scale for metallic elements and alloys (and their common uses by humans)
April 25, 2018
No Comments
Using the Mohs hardness scale, this chart organizes different types of metallic elements and alloys from the most scratch-resistant to the softest.
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Nitrogen Tanks
Process Control & Instrumentation

High-Nitrogen Carbonitriding

Jens Baumann Karl-Michael Winter Alexandre Fleurentin
March 9, 2017
No Comments

Carbonitriding studies with a high amount of nitrogen are characterized by adding ammonia to the process gas at a higher rate than the usual 3-5%. This work focuses on the impact of nitrogen on the lifetime of carburized parts (e.g. gears, sprockets, bearings, crankshafts) exposed to Hertzian pressure or fatigue.


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Glow-in-the-dark fluid illustrating the concept of fluorescence
Materials Characterization & Testing

Wrong Material = Wrong Heat Treatment

Dylan Porter
November 3, 2016
No Comments

When you start a new project that involves metals, it’s important to know which materials you are going to use to get the outcome you want. When it comes to heat-treating outcomes, understanding the specific material is even more important.


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Powder metallurgy utilizes advanced compaction techniques and new alloy systems to optimize mechanical performance of the resulting powder-metallurgy (PM) part
Sintering/Powder Metallurgy

Lower-Alloy Steels for High-Performance PM Applications

Bruce Lindsley Patrick King Sunil Patel Suresh Shah Jerry Falleur
December 2, 2015
One Comment

Powder metallurgy is a continually evolving technology utilizing advanced compaction techniques and new alloy systems to optimize mechanical performance of the resulting powder-metallurgy (PM) part.


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IH0115 Rockwell Hardness Testing feature image
Materials Characterization & Testing

Heat Treatment Drives Evolution of Rockwell Hardness Testing

John Kraus
April 1, 2015
2 Comments

Unlike the Wright Brothers, Hugh Rockwell and Stanley Rockwell were two engineers working for the same company who shared nothing more than a common last name and an interest in developing a better type of hardness test, specifically to test the hardness of bearing races.


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15.0VPT-4035/36IQCN vacuum furnace
Vacuum/Surface Treating

Outstanding LPC Case Hardening of Pyrowear® Alloy 53

M. Korecki M. Bazel Michal Sut Emilia Wolowiec-Korecka
March 9, 2015
No Comments

This article presents the vacuum-carburizing technology of Pyrowear® Alloy 53 steel. It discusses the methods of establishing different carbon concentration profiles in a layer and their influence on the hardness profile.


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Dan-Herring.jpg
The Heat Treat Doctor

A Curious Case of Carbon Pickup

Dan herring
Daniel H. Herring
May 7, 2014
One Comment

Over the years, instances of carbon pickup resulting in subtle hardness variations in 0.30% and 0.40% carbon steels after neutral hardening in an endothermic gas atmosphere have been reported and often result in rework or scrapped loads. 


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To Test Hardness, Know What Hardness Is

To Test Hardness, Know What Hardness Is

Wayne Hayward
January 1, 2014
One Comment
It isn’t hard to test a material’s hardness …once you settle on a definition of hardness.
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Improved Productivity with Automated Microhardness Testing

Improve Productivity with Automated Microhardness Testing

Rich Wismer
December 1, 2013
No Comments
Traditionally, indentation hardness has been reserved for use in the laboratory.
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Introduction to Failure Analysis of Metal and Plastic Parts

How is Failure Analysis Done?

Debbie
Debbie Aliya
October 2, 2013
No Comments
This article is an introduction to failure analysis of the inner structure of metal and plastic parts. It covers issues with that type of failure analysis and provides examples.
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More Articles Tagged with 'hardness'
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