Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Influence of the deformation rate on phase stability and mechanical properties of a Ti-29Nb-13Ta-4.6Zr-xO alloy analyzed by in situ high-energy X-ray diffraction during compression tests

Full text
Author(s):
da Silva, Murillo R. [1, 2] ; Gargarella, Piter [3, 1] ; Plaine, Athos H. [4] ; Contieri, Rodrigo J. [5] ; Pauly, Simon [6] ; Kuehn, Uta [2] ; Bolfarini, Claudemiro [3, 1]
Total Authors: 7
Affiliation:
[1] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn, BR-13565905 Sao Carlos, SP - Brazil
[2] IFW Dresden, Inst Complex Mat, D-01069 Dresden - Germany
[3] Univ Fed Sao Carlos, Dept Mat Engn, BR-13565905 Sao Carlos, SP - Brazil
[4] State Univ Santa Catarina UDESC, Dept Mech Engn, BR-89223100 Joinville, SC - Brazil
[5] Univ Estadual Campinas, Sch Appl Sci, UNICAMP, BR-13083970 Campinas, SP - Brazil
[6] Univ Appl Sci Aschaffenburg, Fac Engn, D-63743 Aschaffenburg - Germany
Total Affiliations: 6
Document type: Journal article
Source: Journal of Materials Research; v. 35, n. 14, p. 1777-1789, JUL 28 2020.
Web of Science Citations: 0
Abstract

In this work, a Ti-29Nb-13Ta-4.6Zr-xO Gum Metal with two significantly different oxygen levels (388 and 3570 ppm) was investigated during deformation. The alloys were compressed during in situ high-energy X-ray diffraction using three different strain rates, 10(-4), 10(-3), and 10(-1) s(-1), in order to evaluate their influence on phase stability and mechanical properties. The influence of oxygen on the deformation process was also studied. Deformation takes place by twinning, stress-induced, and reverse martensitic transformation and was observed, for some samples, a spinodal decomposition of the beta-phase during elastic deformation. The mechanical properties were similar for the different rates employed when considering the same oxygen level. The alloy with a higher amount of oxygen, however, showed a substantial increase in mechanical strength, with a yield strength of around 680 MPa, which is more than three times higher than for the specimen with 388 ppm of oxygen. (AU)

FAPESP's process: 13/05987-8 - Processing and characterization of amorphous, metastable and nano-structured metallic alloys
Grantee:Claudio Shyinti Kiminami
Support Opportunities: Research Projects - Thematic Grants