Powder Metallurgy High Nitrogen Stainless Steel

Published

December 1, 1999

Author(s)

Frank S. Biancaniello, Rodney D. Jiggetts, Richard E. Ricker, Stephen D. Ridder

Abstract

High Nitrogen Stainless Steels (HNSS) are a class of materials that possess a unique combination of outstanding strength, ductility, and corrosion properties. In this paper we report on the advantages of producing these materials via inert gas atomization and HIP consolidation. The high homogeneity and microstructural refinement of Powder Metallurgy (PM) processing was employed to produce a series of HNSS alloys with enhanced nitrogen solubility that possess mechanical and corrosion properties that are as good as or better than previously reported results. The high nitrogen solubility was achieved using alloy chemistry modifications and atmospheric nitrogen pressures. A model was generated by utilizing our own database of measured chemistry and property data that predict nitrogen content and phase stability. Microstructure, mechanical properties, and corrosion properties are presented as a function of alloy content.

Proceedings Title

Proceedings of the 5th International Conference on High Nitrogen Steels

Volume

s. 318-320

Conference Dates

May 1, 1998

Conference Location

Stockholm, SW

Conference Title

International Conference on High Nitrogen Steels

Pub Type

Conferences

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Keywords

austenitic stainless steel, high nitrogen steel, improved structural and corrosion proper, modeling, phase stability, pitting corrosion

Citation

Biancaniello, F. , Jiggetts, R. , Ricker, R. and Ridder, S. (1999), Powder Metallurgy High Nitrogen Stainless Steel, Proceedings of the 5th International Conference on High Nitrogen Steels, Stockholm, SW, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852883 (Accessed April 30, 2024)