Applied Process and other U.S. based thermal processing, surface treatment businesses will begin doing business as Aalberts surface technologies.
Continue readingOne Minute Mentor: Maps of Wear Resistance
The images show wear maps for (a) treated and (b) nontreated 316 stainless steel. The T316 stainless steel was treated by low-temperature carburization.
Continue readingHigh-impact research to be revealed at Heat Treat 2017
More than 125 presentations of original, unpublished work will be delivered when the ASM Heat Treating Society convenes for its 29th conference and exhibition in Columbus, Ohio, October 24-26. The information exchanged in these sessions – as researchers and practitioners share their latest discoveries, theories, and advancements – will have a significant impact on design and manufacturing innovation as well as the fortunes of industry.
Continue readingOne Minute Mentor: Hardness Depth Profiles of Stainless Steel after Nitriding and Nitrocarburizing
X-ray diffraction analysis indicates that the hardened case consists of a mixture of expanded austenite and expanded martensite.
Continue readingOne Minute Mentor: Nitrogen-Expanded Austenite
The graph shows hardness-depth profiles of nitrided AISI 316. A profile for carburizing is shown for comparison.
Continue readingOne Minute Mentor: Physical Metallurgy of Expanded Austenite
The microstructural feature responsible for the favorable technological properties resulting from low-temperature gaseous thermochemical treatment is a supersaturation of nitrogen and/or carbon in austenite. This is called expanded austenite.
Continue readingOne Minute Mentor: Low-Temperature Surface Hardening of Stainless Steel
The graph shows a schematic time-temperature-transformation (TTT) diagram of austenite with a high nitrogen or carbon content. In order to prevent the development of chromium nitrides/carbides, a long-time low-temperature treatment could be applied.
Continue readingOne Minute Mentor: Iron-Nickel Precipitation-Hardenable Superalloys
It is important to note that tensile properties are influenced not only by heat treatment, but also by control of structure during thermomechanical processing.
Continue readingOne Minute Mentor: Hardening Martensitic Stainless Steels
Certain anomalies in these steels that should be considered before specifying a heat-treating procedure are exemplified in the opposing injurious effects of the high and low extremes of austenitizing temperature, depending on the subsequent tempering temperature.
Continue readingOne Minute Mentor: Hardening Ferritic Stainless Steels
Ferritic stainless steels are quite similar in their mechanical behavior to carbon steel.
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