Publication detail

Damage Evolution in Thermomechanical Loading of Stainless Steel

PETRÁŠ, R. ŠKORÍK, V. POLÁK, J.

Original Title

Damage Evolution in Thermomechanical Loading of Stainless Steel

Type

journal article in Scopus

Language

English

Original Abstract

Superaustenitic stainless steel Sanicro 25 has been subjected to in-phase and out-of-phase thermomechanical fatigue (TMF). Different amplitudes of mechanical strain and the changes of the temperature in the interval 250 to 700°C were applied to standard cylindrical specimens. Early fatigue damage has been studied using scanning electron microscopy combined with FIB cutting and EBSD imaging. TMF loading resulted first in developing thin oxide layer. In in-phase loading grain boundaries were preferentially oxidized and fatigue cracks developed by alternating oxidation and cracking. Fatigue cracks developed rapidly in oxidized grain boundaries and propagated intergranularly. During out-of-phase TMF loading the cracked oxide layer resulted in local oxidation and crack initiation. The crack grew transgranularly.

Keywords

Thermomechanical fatigue, Sanicro 25 steel, Damage mechanism, FIB cutting, Localized oxidation-cracking

Authors

PETRÁŠ, R.; ŠKORÍK, V.; POLÁK, J.

Released

20. 6. 2016

Publisher

Elsevier

ISBN

2452-3216

Periodical

Procedia Structural Integrity

Year of study

2

Number

1

State

Republic of Italy

Pages from

3407

Pages to

3414

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S2452321616304449

Full text in the Digital Library

http://hdl.handle.net/11012/203208

BibTex

@article{BUT129904,
  author="Roman {Petráš} and Viktor {Škorík} and Jaroslav {Polák}",
  title="Damage Evolution in Thermomechanical Loading of Stainless Steel",
  journal="Procedia Structural Integrity",
  year="2016",
  volume="2",
  number="1",
  pages="3407--3414",
  doi="10.1016/j.prostr.2016.06.425",
  issn="2452-3216",
  url="https://www.sciencedirect.com/science/article/pii/S2452321616304449"
}