Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 9, No. 34 (2015)

Fatigue crack micromechanisms in a Cu-Zn-Al shape memory alloy with pseudo-elastic behavior

Author and affiliation details
  • Vittorio Di Cocco Corresponding author v.dicocco@unicas.it
  • Francesco Iacoviello
  • Stefano Natali
  • Andrea Brotzu
DOI
10.3221/IGF-ESIS.34.46
Published
Published inVol. 9, No. 34 (2015)Go to the issue

Abstract

Shape memory property characterizes the behavior of many Ti based and Cu based alloys (SMAs).
In Cu-Zn-Al SMAs, the original shape recovering is due to a bcc phase that is stable at high temperature. After
an appropriate cooling process, this phase (?-phase or austenitic phase) transforms reversibly into a B2 structure (transition phase) and, after a further cooling process or a plastic deformation, it transforms into a DO3 phase (martensitic phase). In ?-Cu-Zn-Al SMAs, the martensitic transformation due to plastic deformation is not stable at room temperature: a high temperature “austenitization” process followed by a high speed cooling process allow to obtain a martensitic phase with a higher stability.
In this work, a Cu-Zn-Al SMA in “as cast” conditions has been microstructurally and metallographically
characterized by means of X-Ray diffraction and Light Optical Microscope (LOM) observations. Fatigue crack
propagation resistance and damaging micromechanisms have been investigated corresponding to three different load ratios (R=0.10, 0.50 and 0.75).

Keywords

Article history

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

How to cite

APA

Di Cocco, V., Iacoviello, F., Natali, S., & Brotzu, A. (2015). Fatigue crack micromechanisms in a Cu-Zn-Al shape memory alloy with pseudo-elastic behavior. Fracture and Structural Integrity, 9(34). https://doi.org/10.3221/IGF-ESIS.34.46

IEEE

V. Di Cocco, F. Iacoviello, S. Natali, and A. Brotzu, “Fatigue crack micromechanisms in a Cu-Zn-Al shape memory alloy with pseudo-elastic behavior,” Fracture and Structural Integrity, vol. 9, no. 34, 2015, doi: 10.3221/IGF-ESIS.34.46.

MLA

Di Cocco, Vittorio, et al. “Fatigue crack micromechanisms in a Cu-Zn-Al shape memory alloy with pseudo-elastic behavior.” Fracture and Structural Integrity, vol. 9, no. 34, 2015. https://doi.org/10.3221/IGF-ESIS.34.46.

Chicago

Di Cocco, Vittorio, Francesco Iacoviello, Stefano Natali, and Andrea Brotzu. 2015. “Fatigue crack micromechanisms in a Cu-Zn-Al shape memory alloy with pseudo-elastic behavior.” Fracture and Structural Integrity 9 (34). https://doi.org/10.3221/IGF-ESIS.34.46.

Harvard

Di Cocco, V., Iacoviello, F., Natali, S. and Brotzu, A. (2015) ‘Fatigue crack micromechanisms in a Cu-Zn-Al shape memory alloy with pseudo-elastic behavior’, Fracture and Structural Integrity, 9(34). doi: 10.3221/IGF-ESIS.34.46.

Vancouver

Di Cocco V, Iacoviello F, Natali S, Brotzu A. Fatigue crack micromechanisms in a Cu-Zn-Al shape memory alloy with pseudo-elastic behavior. Fracture and Structural Integrity. 2015;9(34). doi:10.3221/IGF-ESIS.34.46

BibTeX

@article{dicocco2015, author = {Di Cocco, Vittorio and Iacoviello, Francesco and Natali, Stefano and Brotzu, Andrea}, title = {Fatigue crack micromechanisms in a Cu-Zn-Al shape memory alloy with pseudo-elastic behavior}, journal = {Fracture and Structural Integrity}, year = {2015}, volume = {9}, number = {34}, doi = {10.3221/IGF-ESIS.34.46}, url = {https://doi.org/10.3221/IGF-ESIS.34.46}, issn = {1971-8993} }

RIS

TY - JOUR AU - Di Cocco, Vittorio AU - Iacoviello, Francesco AU - Natali, Stefano AU - Brotzu, Andrea TI - Fatigue crack micromechanisms in a Cu-Zn-Al shape memory alloy with pseudo-elastic behavior JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2015 DA - 2015/09/28 VL - 9 IS - 34 DO - 10.3221/IGF-ESIS.34.46 UR - https://doi.org/10.3221/IGF-ESIS.34.46 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)

1 2 3 > >>