Effect of Solution Annealing on Fatigue Crack Propagation in the AISI 304L TRIP Steel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F21%3A00544866" target="_blank" >RIV/68081723:_____/21:00544866 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26620/21:PU141927

Result on the web

<a href="https://www.mdpi.com/1996-1944/14/6/1331" target="_blank" >https://www.mdpi.com/1996-1944/14/6/1331</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma14061331" target="_blank" >10.3390/ma14061331</a>

Result language

angličtina

Original language name

Effect of Solution Annealing on Fatigue Crack Propagation in the AISI 304L TRIP Steel

Original language description

Fatigue crack propagation in near-threshold regime was studied in the 304L austenitic stainless steel in two microstructural states: as-received (AR) with finer microstructure and low susceptibility to the transformation-induced plasticity (TRIP) effect, and solution-annealed (SA) with coarser microstructure and higher susceptibility to TRIP. At the load ratio R = 0.1 the threshold was higher in the SA state than in the AR state due to coarser grains and possibly the TRIP effect. In order to clarify the role of crack closure, experiments at R = 0.7 were done. The threshold in the SA state was still higher by 1 MPa center dot m(0.5). This effect was identified as crack tip shielding induced by phase transformation, an example of a non-closure shielding effect. Higher resistance to crack growth in the SA state was attributed to promoted martensitic transformation in non-favorable oriented grain families rather than thicker martensite layers in the crack path area. The conclusions were verified by experiments at R = 0.7 and temperature 150 degrees C > M-s which did not reveal any notable difference in thresholds. However, the threshold values were affected by the load-shedding gradient C =d Delta K/da, which had to be equalized in both experimental setups inside and outside the furnace.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Volume of the periodical

14

Issue of the periodical within the volume

6

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

1331

UT code for WoS article

000640026900001

EID of the result in the Scopus database

2-s2.0-85103010943