Development of anisotropy and strain hardening in damaged stamped parts made of IF steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25510%2F22%3A39919339" target="_blank" >RIV/00216275:25510/22:39919339 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1350630722009827?dgcid=author" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1350630722009827?dgcid=author</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.engfailanal.2022.107015" target="_blank" >10.1016/j.engfailanal.2022.107015</a>
Alternative languages
Result language
angličtina
Original language name
Development of anisotropy and strain hardening in damaged stamped parts made of IF steel
Original language description
The high formability of interstitial-free (IF) steel for the automotive industry is conditioned by anisotropy for delayed necking. The processes leading to the formation of the crack under manufacturing conditions, driven by localized deformation in the critical stamped parts, are investigated in the present research. The development of anisotropy along with intra-granular misorientation is analyzed with the increasing necking up to the fracture. The real failure of the stamped part in the stage of the crack formed during the forming vs limited necking is compared with standard tensile and Nakazima samples to involve the different strain paths. The limiting phase of primary misorientation degradation is defined as the critical decrease of γ-fibre in the thickness direction (ND//〈111〉). The low angle grain boundary (LAGB) formation is expressed as the decisive parameter in the sense of anisotropy development during necking up to the point of failure. Strain-path affects the limit value of LAGB and indicates the non-proportional strain in the fracture process zone. Furthermore, the depletion of plasticity is expressed by local yield stress. The limiting necking of 48 % is found to be correlated with hardening over 90 %, i.e. a local yield strength above 300 MPa leads to a critical decrease in plasticity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Engineering Failure Analysis
ISSN
1350-6307
e-ISSN
1873-1961
Volume of the periodical
Neuveden
Issue of the periodical within the volume
145
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
1-11
UT code for WoS article
000910709400001
EID of the result in the Scopus database
2-s2.0-85144600006