Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 10, No. 35 (2016)

Mechanisms of plastic instability and fracture of compressed and tensile tested Mg-Li alloys investigated using the acoustic emission method

Author and affiliation details
  • A. Pawelek Corresponding author a.pawelek@imim.pan.pl
  • A. Piatkowski
  • W. Wajda
  • W. Skuza
  • A. Tarasek
  • W. Ozgowicz
  • B Grzegorczyk
  • Z. Ranachowski
  • S. Kúdela Jr
  • S. Kúdela
DOI
10.3221/IGF-ESIS.35.03
Pages
pages 21-30
Published
Published inVol. 10, No. 35 (2016)Go to the issue

Abstract

The results of the investigation of both mechanical and acoustic emission (AE) behaviors of Mg4Li5Al alloy subjected to compression and tensile tests at room temperature are compared with the test results obtained using the same alloy and loading scheme but at elevated temperatures. The main aim of the paper is to investigate, to determine and to explain the possible influence of factors related with enhanced internal stresses such as: segregation of precipitates along grain boundaries or solute atoms along dislocations (Cottrell atmospheres) or dislocation pile-ups at grain boundaries which create very high stress concentration leading to fracture. The results show that the plastic instabilities are related to the Portevin–Le Châtelier phenomenon (PL effect) and they are correlated with the generation of AE peaks. The fractography of breaking samples was analyzed on the basis of light (optical), TEM and SEM images.

Keywords

Article history

  1. ReceivedUntil the next stage: 0 days
  2. AcceptedUntil the next stage: 5 days
  3. Published

How to cite

APA

Pawelek, A., Piatkowski, A., Wajda, W., Skuza, W., Tarasek, A., Ozgowicz, W., Grzegorczyk, B., Ranachowski, Z., Kúdela Jr, S., & Kúdela, S. (2015). Mechanisms of plastic instability and fracture of compressed and tensile tested Mg-Li alloys investigated using the acoustic emission method. Fracture and Structural Integrity, 10(35), pages 21–30. https://doi.org/10.3221/IGF-ESIS.35.03

IEEE

A. Pawelek et al., “Mechanisms of plastic instability and fracture of compressed and tensile tested Mg-Li alloys investigated using the acoustic emission method,” Fracture and Structural Integrity, vol. 10, no. 35, pp. pages 21–30, 2015, doi: 10.3221/IGF-ESIS.35.03.

MLA

Pawelek, A., et al. “Mechanisms of plastic instability and fracture of compressed and tensile tested Mg-Li alloys investigated using the acoustic emission method.” Fracture and Structural Integrity, vol. 10, no. 35, 2015, pp. pages 21–30. https://doi.org/10.3221/IGF-ESIS.35.03.

Chicago

Pawelek, A., A. Piatkowski, W. Wajda, W. Skuza, A. Tarasek, W. Ozgowicz, B Grzegorczyk, Z. Ranachowski, S. Kúdela Jr, and S. Kúdela. 2015. “Mechanisms of plastic instability and fracture of compressed and tensile tested Mg-Li alloys investigated using the acoustic emission method.” Fracture and Structural Integrity 10 (35): pages 21–30. https://doi.org/10.3221/IGF-ESIS.35.03.

Harvard

Pawelek, A., Piatkowski, A., Wajda, W., Skuza, W., Tarasek, A., Ozgowicz, W., Grzegorczyk, B., Ranachowski, Z., Kúdela Jr, S. and Kúdela, S. (2015) ‘Mechanisms of plastic instability and fracture of compressed and tensile tested Mg-Li alloys investigated using the acoustic emission method’, Fracture and Structural Integrity, 10(35), pp. pages 21–30. doi: 10.3221/IGF-ESIS.35.03.

Vancouver

Pawelek A, Piatkowski A, Wajda W, Skuza W, Tarasek A, Ozgowicz W, et al. Mechanisms of plastic instability and fracture of compressed and tensile tested Mg-Li alloys investigated using the acoustic emission method. Fracture and Structural Integrity. 2015;10(35):pages 21-30. doi:10.3221/IGF-ESIS.35.03

BibTeX

@article{pawelek2015, author = {Pawelek, A. and Piatkowski, A. and Wajda, W. and Skuza, W. and Tarasek, A. and Ozgowicz, W. and Grzegorczyk, B and Ranachowski, Z. and Kúdela Jr, S. and Kúdela, S.}, title = {Mechanisms of plastic instability and fracture of compressed and tensile tested Mg-Li alloys investigated using the acoustic emission method}, journal = {Fracture and Structural Integrity}, year = {2015}, volume = {10}, number = {35}, pages = {pages 21--30}, doi = {10.3221/IGF-ESIS.35.03}, url = {https://doi.org/10.3221/IGF-ESIS.35.03}, issn = {1971-8993} }

RIS

TY - JOUR AU - Pawelek, A. AU - Piatkowski, A. AU - Wajda, W. AU - Skuza, W. AU - Tarasek, A. AU - Ozgowicz, W. AU - Grzegorczyk, B AU - Ranachowski, Z. AU - Kúdela Jr, S. AU - Kúdela, S. TI - Mechanisms of plastic instability and fracture of compressed and tensile tested Mg-Li alloys investigated using the acoustic emission method JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2015 DA - 2015/12/29 VL - 10 IS - 35 SP - pages 21 EP - 30 DO - 10.3221/IGF-ESIS.35.03 UR - https://doi.org/10.3221/IGF-ESIS.35.03 SN - 1971-8993 ER -

Licence

Copyright © 2015 Fracture and Structural Integrity.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

Open Access Statement

Fracture and Structural Integrity (F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit, providing a link to the license, and indicating if changes were made.

Similar articles

Most read articles by the same author(s)