liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Creep and Fatigue Interaction Behavior in Sanicro 25 Heat Resistant Austenitic Stainless Steel
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, Faculty of Science & Engineering. Sandvik Materials Technology,Sandviken, Sweden.
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, Faculty of Science & Engineering.
2016 (English)In: Transactions of the Indian Institute of Metals, ISSN 0972-2815, E-ISSN 0975-1645, Vol. 69, no 2, 337-342 p.Article in journal (Refereed) Published
Abstract [en]

Sanicro 25 is a newly developed advanced high strength heat resistant austenitic stainless steel. The material shows good resistance to steam oxidation and flue gas corrosion, and has higher creep rupture strength than other austenitic stainless steels available today. It is thus an excellent candidate for superheaters and reheaters for advanced ultra-super critical power plants with efficiency higher than 50 %. This paper provides a study on the creep–fatigue interaction behavior of Sanicro 25 at 700 °C. Two strain ranges, 1 and 2 %, and two dwell times, 10 and 30 min, were used. The influences of dwell time on the cyclic deformation behavior and life has been evaluated. Due to stress relaxation the dwell time causes a larger plastic strain range compared to the tests without dwell time. The results also show that the dwell time leads to a shorter fatigue life for the lower strain range, but has no or small effect on the life for the higher strain range. Fracture investigations show that dwell times result in more intergranular cracking. With the use of the electron channeling contrast imaging technique, the influences of dwell time on the cyclic plastic deformation, precipitation behavior, recovery phenomena and local plasticity exhaustion have also been studied.

Place, publisher, year, edition, pages
Springer, 2016. Vol. 69, no 2, 337-342 p.
Keyword [en]
Sanicro 25, advanced ultra-super critical power plant, creep, low cycle fatigue, cyclic plastic deformation
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:liu:diva-123646DOI: 10.1007/s12666-015-0806-3ISI: 000368032700027OAI: oai:DiVA.org:liu-123646DiVA: diva2:890648
Conference
7th International Conference on Creep, 19-22 January 2016, IGCAR, Kalpakkam, India
Note

Funding agencies: AB Sandvik Materials Technology in Sweden; Swedish National Energy Administration through the Research Consortium of Materials Technology for Thermal Energy Processes [KME-701]; AFM Strategic Faculty Grant SFO-MAT-LiU at Linkoping University [2009-00971]

Available from: 2016-01-04 Created: 2016-01-04 Last updated: 2016-02-23

Open Access in DiVA

The full text will be freely available from 2017-01-04 00:00
Available from 2017-01-04 00:00

Other links

Publisher's full text

Search in DiVA

By author/editor
Calmunger, MattiasChai, GuocaiJohansson, StenMoverare, Johan
By organisation
Engineering MaterialsFaculty of Science & Engineering
In the same journal
Transactions of the Indian Institute of Metals
Metallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 219 hits
ReferencesLink to record
Permanent link

Direct link