Influence of Cryo-Processing and Post-SPD Annealing on Creep Behavior of CP Titanium

Dvořák, Jiří; Král, Petr; Kadomtsev, A. G.; Betekhtin, V. I.; Narykova, M. V.; Kvapilová, Marie; Sklenička, Václav

doi:https://dx.doi.org/10.3390/ma15051646

Number of the records: 1

Influence of Cryo-Processing and Post-SPD Annealing on Creep Behavior of CP Titanium

1.

SYSNO ASEP	0556664
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Influence of Cryo-Processing and Post-SPD Annealing on Creep Behavior of CP Titanium
Author(s)	Dvořák, Jiří (UFM-A)_{RID, ORCID} Král, Petr (UFM-A)_{RID, ORCID} Kadomtsev, A. G. (RU) Betekhtin, V. I. (RU) Narykova, M. V. (RU) Kvapilová, Marie (UFM-A)_{RID, ORCID} Sklenička, Václav (UFM-A)_{RID, ORCID}
Number of authors	7
Article number	1646
Source Title	Materials. - : MDPI ROČ. 15, č. 5 (2022)
Number of pages	13 s.
Language	eng - English
Country	CH - Switzerland
Keywords	titanium ; creep properties ; severe plastic deformation
Subject RIV	JG - Metallurgy
OECD category	Materials engineering
R&D Projects	GC20-14450J GA ČR - Czech Science Foundation (CSF)
Method of publishing	Open access
Institutional support	UFM-A - RVO:68081723
UT WOS	000768471900001
EID SCOPUS	85125815943
DOI	10.3390/ma15051646
Annotation	The commercial purity of VT1-0 titanium was processed by the rolling process and executed at elevated, room, and cryo-temperatures. These processings led to the formation of an ultrafine-grained microstructure, with the mean grain size at a nanometer level. Some of these materials were statically annealed at a temperature of 823 K for 1 h, which led to significant subgrains and grain coarsening. The constant load creep tests in tension were carried out in argon on all states of materials, at temperatures of 648-723 K and different ranges of applied stresses. From the value of the steady-state creep rate, the control creep mechanisms were determined. The microstructure analyses were carried out via SEM and TEM. It was found that titanium prepared at elevated and room temperatures have a higher creep strength than titanium prepared at cryo-temperatures. Furthermore, the post-SPD -annealing led to a significant decrease in the creep properties. The influence of the preparation temperature on the difference of the creep behavior were discussed and explained using the microstructure analyses of the tests' samples.
Workplace	Institute of Physics of Materials
Contact	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Year of Publishing	2023
Electronic address	https://www.mdpi.com/1996-1944/15/5/1646

Number of the records: 1