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Title: Application of nitrogen-alloyed martensitic stainless steels in the aviation industry

Abstract

Nitrogen in stainless martensitic steels has a beneficial influence on the mechanical as well as on the chemical properties. However the effect of nitrogen is limited due to the rather low solubility of this element. A special alloy development in combination with a pressurized melting technique lead to distinctly higher nitrogen contents. Stainless martensitic steels containing high nitrogen contents are manufactured by VSG today on an industrial scale using the PESR-process (Pressurized Electroslag Remelting). Depending on special applications these steels are available with different chemical analysis under the trademark CRONIDUR. The basic composition of all CRONIDUR-alloys consists of about 15% Chromium, 1% Molybdenum, 0.15 to 0.35% Carbon and 0.20 to 0.40% Nitrogen. The combination of Cr + Mo + N leads to a superior corrosion resistance of these HNS-steels (HNS: High Nitrogen Steels) in comparison to similar carbon based alloys. Focused on applications with a required minimum hardness of 58 HRC, like stainless bearings or screw shafts, the C+N-content is tuned between 0.60 and 0.80% (Brand: CRONIDUR 30). Additions of max. 0.3% Vanadium and 0.1% Niobium qualifies the brand CRONIDUR 20 for enhanced temperature applications like turbine disks or blades.

Authors:
;  [1];  [2]
  1. VSG Energie- und Schmiedetechnik, Essen (Germany)
  2. VSG Energie- und Schmiedetechnik GmbH, Hattingen (Germany)
Publication Date:
OSTI Identifier:
611605
Report Number(s):
CONF-9611207-
ISBN 0-8031-2423-6; TRN: IM9816%%79
Resource Type:
Conference
Resource Relation:
Conference: 2. Symposium on steel forgings, New Orleans, LA (United States), 20-21 Nov 1996; Other Information: PBD: 1997; Related Information: Is Part Of Steel forgings: Second volume; Nisbett, E.G.; Melilli, A.S. [eds.]; PB: 376 p.; ASTM special technical publication, 1259
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MECHANICAL PROPERTIES; CORROSION RESISTANCE; STAINLESS STEELS; NITROGEN ADDITIONS; METALLURGICAL EFFECTS; CHEMICAL COMPOSITION; AEROSPACE INDUSTRY

Citation Formats

Stein, G, Kirschner, W, and Lueg, J. Application of nitrogen-alloyed martensitic stainless steels in the aviation industry. United States: N. p., 1997. Web.
Stein, G, Kirschner, W, & Lueg, J. Application of nitrogen-alloyed martensitic stainless steels in the aviation industry. United States.
Stein, G, Kirschner, W, and Lueg, J. 1997. "Application of nitrogen-alloyed martensitic stainless steels in the aviation industry". United States.
@article{osti_611605,
title = {Application of nitrogen-alloyed martensitic stainless steels in the aviation industry},
author = {Stein, G and Kirschner, W and Lueg, J},
abstractNote = {Nitrogen in stainless martensitic steels has a beneficial influence on the mechanical as well as on the chemical properties. However the effect of nitrogen is limited due to the rather low solubility of this element. A special alloy development in combination with a pressurized melting technique lead to distinctly higher nitrogen contents. Stainless martensitic steels containing high nitrogen contents are manufactured by VSG today on an industrial scale using the PESR-process (Pressurized Electroslag Remelting). Depending on special applications these steels are available with different chemical analysis under the trademark CRONIDUR. The basic composition of all CRONIDUR-alloys consists of about 15% Chromium, 1% Molybdenum, 0.15 to 0.35% Carbon and 0.20 to 0.40% Nitrogen. The combination of Cr + Mo + N leads to a superior corrosion resistance of these HNS-steels (HNS: High Nitrogen Steels) in comparison to similar carbon based alloys. Focused on applications with a required minimum hardness of 58 HRC, like stainless bearings or screw shafts, the C+N-content is tuned between 0.60 and 0.80% (Brand: CRONIDUR 30). Additions of max. 0.3% Vanadium and 0.1% Niobium qualifies the brand CRONIDUR 20 for enhanced temperature applications like turbine disks or blades.},
doi = {},
url = {https://www.osti.gov/biblio/611605}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 31 00:00:00 EST 1997},
month = {Wed Dec 31 00:00:00 EST 1997}
}

Conference:
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