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Proof strength values for austenitic stainless steels at elevated temperatures
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0002-8494-3983
2000 (English)In: Steel research, ISSN 0177-4832, Vol. 71, no 07-jun, 249-254 p.Article in journal (Refereed) Published
Abstract [en]

The influence of the alloying elements C, N, Si, Mn, Cr, Ni, Mo, Cu, Ti on proof strength is studied in the temperature range 20-550 degrees C. High temperature data for the proof strength of austenitic stainless steels have been analysed. Using computational thermodynamics the amount of alloying elements in solid solution and the volume fractions of precipitates were assessed. These quantities were then applied in a regression analysis for the high temperature strength. Quantitative relationships for the proof strength as a result of the regression analysis are proposed as a function of temperature. They are to be used in materials design. The interstitial elements showed the largest effect. Si, Ni and Mo increased the strength at all temperatures. Cu and Mn reduced the strength and Cr gave an influence, which varied with temperature.

Place, publisher, year, edition, pages
2000. Vol. 71, no 07-jun, 249-254 p.
Keyword [en]
nitrogen
Identifiers
URN: urn:nbn:se:kth:diva-20103ISI: 000089876200010OAI: oai:DiVA.org:kth-20103DiVA: diva2:338796
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Sandström, Rolf

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