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Title: Development of Cast Alumina-forming Austenitic Stainless Steel Alloys for use in High Temperature Process Environments

Abstract

There is significant interest in the development of alumina-forming, creep resistant alloys for use in various industrial process environments. It is expected that these alloys can be fabricated into components for use in these environments through centrifugal casting and welding. Based on the successful earlier studies on the development of wrought versions of Alumina-Forming Austenitic (AFA) alloys, new alloy compositions have been developed for cast products. These alloys achieve good high-temperature oxidation resistance due to the formation of protective Al 2O 3 scales while multiple second-phase precipitation strengthening contributes to excellent creep resistance. This work will summarize the results on the development and properties of a centrifugally cast AFA alloy. This paper highlights the strength, oxidation resistance in air and water vapor containing environments, and creep properties in the as-cast condition over the temperature range of 750°C to 900°C in a centrifugally cast heat. Preliminary results for a laboratory cast AFA composition with good oxidation resistance at 1100°C are also presented.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2]
  1. ORNL
  2. Duraloy Technologies Inc
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
Work for Others (WFO)
OSTI Identifier:
1215573
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: NACE Corrosion 2015, Dallas, TX, USA, 20150315, 20150315
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Alumina forming alloys, carbides

Citation Formats

Muralidharan, Govindarajan, Yamamoto, Yukinori, Brady, Michael P, Pint, Bruce A, Pankiw, Roman, and Voke, Don. Development of Cast Alumina-forming Austenitic Stainless Steel Alloys for use in High Temperature Process Environments. United States: N. p., 2015. Web.
Muralidharan, Govindarajan, Yamamoto, Yukinori, Brady, Michael P, Pint, Bruce A, Pankiw, Roman, & Voke, Don. Development of Cast Alumina-forming Austenitic Stainless Steel Alloys for use in High Temperature Process Environments. United States.
Muralidharan, Govindarajan, Yamamoto, Yukinori, Brady, Michael P, Pint, Bruce A, Pankiw, Roman, and Voke, Don. Thu . "Development of Cast Alumina-forming Austenitic Stainless Steel Alloys for use in High Temperature Process Environments". United States. doi:. https://www.osti.gov/servlets/purl/1215573.
@article{osti_1215573,
title = {Development of Cast Alumina-forming Austenitic Stainless Steel Alloys for use in High Temperature Process Environments},
author = {Muralidharan, Govindarajan and Yamamoto, Yukinori and Brady, Michael P and Pint, Bruce A and Pankiw, Roman and Voke, Don},
abstractNote = {There is significant interest in the development of alumina-forming, creep resistant alloys for use in various industrial process environments. It is expected that these alloys can be fabricated into components for use in these environments through centrifugal casting and welding. Based on the successful earlier studies on the development of wrought versions of Alumina-Forming Austenitic (AFA) alloys, new alloy compositions have been developed for cast products. These alloys achieve good high-temperature oxidation resistance due to the formation of protective Al2O3 scales while multiple second-phase precipitation strengthening contributes to excellent creep resistance. This work will summarize the results on the development and properties of a centrifugally cast AFA alloy. This paper highlights the strength, oxidation resistance in air and water vapor containing environments, and creep properties in the as-cast condition over the temperature range of 750°C to 900°C in a centrifugally cast heat. Preliminary results for a laboratory cast AFA composition with good oxidation resistance at 1100°C are also presented.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}

Conference:
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