The Change of the Structure and Mechanical Properties of the Austenitic Steels after Exposure at the Critical Temperature

Šárka Stejskalová; Ladislav Kander; Šárka Hermanová

doi:10.4028/www.scientific.net/MSF.891.330

Paper Titles

Influence of Microstructural Parameters on the Corrosion Resistance of 7075 Aluminum Alloy
p.303

Metallographic Characterization and Fatigue Damage Initiation in Ti6Al4V Alloy Produced by Direct Metal Laser Sintering
p.311

Influence of the Direct Metal Laser Sintering Process on the Fatigue Behavior of the Ti6Al4V Alloy
p.317

Comparison of Results of Accelerated and Conventional Creep Tests of Dissimilar Weld Joint of Steels FB2 and F
p.322

The Change of the Structure and Mechanical Properties of the Austenitic Steels after Exposure at the Critical Temperature
p.330

Comparative Analysis of Creep Cavitation Damage in 0.5Cr-0.5Mo-0.3V Steel after Long-Term Creep Exposure by Metallography and Replica Testing
p.335

Mechanical and Microstructural Properties of 2618 Al-Alloy Processed by SLM Remelting Strategy
p.343

Improvement of Microstructure and Mechanical Properties of Secondary AlSi8Cu2Mn Cast Alloy by Strontium
p.350

Study of Artificial Aging Temperature Effect on Morphology of Structural Parameters in Aluminium Cast Alloy
p.354

HomeMaterials Science ForumMaterials Science Forum Vol. 891The Change of the Structure and Mechanical...

The Change of the Structure and Mechanical Properties of the Austenitic Steels after Exposure at the Critical Temperature

Abstract:

The paper deals with the change of the structure and mechanical properties of the austenitic steels after the exposure at the critical temperature. The effects of the bend radius of tubes including effect of solution annealing on the mechanical properties and the structure were studied. The mechanical properties were studied using small punch test (SPT) and miniaturized tensile tests. From the results can be concluded that the mechanical properties and the structure have been influenced due to one year exposure at the working temperature significantly. Various amounts of σ-phase were found in the pulled part of the bend side of the tubes even after only thermal exposure without any loading. The effect of the heat treatment and the bend radius on the mechanical properties and the structure was also evident. Drop in fracture energy due to the presence of the σ-phase in the structure was clearly detected from force - displacement record of the small punch test. Keywords: Austenitic steels, bends, σ-phase, small punch test

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 891)

Pages:

330-334

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.891.330

Citation:

Cite this paper

Online since:

March 2017

Authors:

Šárka Stejskalová*, Ladislav Kander, Šárka Hermanová

Keywords:

Austenitic Steels, Bends, Small Punch Test , σ-Phase

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Information on http: /matcalc. tuwien. ac. at.

Google Scholar

[2] Š. Stejskalová, L. Kander, Study of mechanical properties and microstructure of austenitic stainless bend tubes, (in Czech) technical report T-44/2014, Ostrava September, (2014).

Google Scholar

[3] Š. Stejskalová, L. Kander, Š. Hermanová, The change of the structure and mechanical properties of the austenitic steels after exposure at the critical temperature. In Proc Metallography 2016, 100.

DOI: 10.4028/www.scientific.net/msf.891.330

Google Scholar

[4] Small Punch Test Method for Metallic Materials. CEN WORKSHOP AGREEMENT CWA 15627, (2007).

Google Scholar

[5] Š. Stejskalová, L. Kander, Effect of sigma phase on mechanical and fracture properties of TP347H tubes, technical report T-26/2013, Ostrava September (2013).

Google Scholar