ORNL's alumina-forming austenitic alloy licensed to Carpenter Technology Corp.

April 07, 2011

OAK RIDGE, Tenn., April 7, 2011 -- Metal alloy manufacturer Carpenter Technology Corp. has licensed an alumina-forming austenitic stainless steel alloy developed at the Department of Energy's Oak Ridge National Laboratory.

The new alloy, developed at ORNL by Phil Maziasz, Bruce Pint, Michael Brady, Zhaoping Lu, Chain T. Liu and Yukinori Yamamoto, is unique in that the composition allows for alumina scales to form on the exterior of the steel, providing significant oxidation resistance.

The alloy displays excellent creep strength at high temperatures (700-800 Celsius). While some of these characteristics may be found in existing alloys, this new alloy can be produced at a lower price than other existing alloys, which require high amounts of nickel.

"Any application in which high temperatures or corrosive environments are encountered could be a potential application of this technology," said Tim Armstrong, Carpenter Technology vice president for research and development.

Potential applications include recuperators and heat exchangers, down-hole drilling and chemical processing equipment and materials.

The agreement with Carpenter allows for the sale of the alloy in a variety of bulk forms that have been vacuum melted.
-end-
Carpenter Technology Corporation, based in Wyomissing, Pa., develops, manufactures and distributes cast-wrought and powder metal stainless steels and specialty alloys including high temperature (iron-nickel-cobalt base), stainless, corrosion resistant, controlled expansion alloys, ultra high-strength and implantable alloys, tool and die steels and other specialty metals, as well as cast-wrought titanium alloys.

ORNL is managed by UT-Battelle for the Department of Energy's Office of Science.

Image: http://www.ornl.gov/info/press_releases/photos/carpenter1.jpg

Caption: Oak Ridge National Laboratory Director Thom Mason (left) and Carpenter Technologies Vice President for Research and Development Tim Armstrong sign a licensing agreement for an alumina-forming austenitic stainless steel alloy developed at ORNL.

NOTE TO EDITORS: You may read other press releases from Oak Ridge National Laboratory or learn more about the lab at http://www.ornl.gov/news. Additional information about ORNL is available at the sites below:

Twitter - http://twitter.com/oakridgelabnews

RSS Feeds - http://www.ornl.gov/ornlhome/rss_feeds.shtml

Flickr - http://www.flickr.com/photos/oakridgelab

YouTube - http://www.youtube.com/user/OakRidgeNationalLab

LinkedIn - http://www.linkedin.com/companies/oak-ridge-national-laboratory

Facebook - http://www.facebook.com/Oak.Ridge.National.Laboratory

DOE/Oak Ridge National Laboratory

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