Development of Fatigue Damages in a Pseudo-α-Titanium Alloy after Intense Thermomechanical Treatment

Autor:	V. P. Bagmutov, V. I. Vodop’yanov, V. V. Chekunov, M. D. Romanenko, A. V. Vdovenko, I. N. Zakharov
Rok vydání:	2019
Předmět:	Materials science 020502 materials Alloy Metals and Alloys Titanium alloy Fractography Fatigue damage 02 engineering and technology engineering.material Paris' law 0205 materials engineering engineering Growth rate Surface layer Composite material Case hardening
Zdroj:	Russian Metallurgy (Metally). 2019:548-555
ISSN:	1555-6255 0036-0295
DOI:	10.1134/s0036029519050033
Popis:	The influence of surface hardening by electrochemical treatment, abrasive-free ultrasonic finishing treatment, and their combination on the accumulation of fatigue damages in a pseudo-α-titanium alloy (PT3V) during pulsed cyclic loading in a transition stage of fatigue (104–105 cycles) is studied. The fatigue damage accumulation kinetics is estimated using the inelasticity parameters of a specimen (hysteresis loop width, cyclic creep, rigidity (compliance)) during cyclic loading, an analysis of fracture surfaces, and the crack growth rate. The state of surface layer is shown to play a key role in the change in the fatigue life of laboratory specimens. The type of surface hardening only weakly affects the accumulation of fatigue damages at the stages of stable crack growth and rupture.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aa9dce350e040b9b9de26c9869a494e4 https://doi.org/10.1134/s0036029519050033 Zobrazit plný text záznamu Full text from SpringerLink