Detail publikace
Fracture Toughness of Cold Sprayed Pure Metals
KOVÁŘÍK, O. SIEGL, J. ČÍŽEK, J. CHRÁSKA, T. KONDAS, J.
Anglický název
Fracture Toughness of Cold Sprayed Pure Metals
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
The study of fracture toughness of pure Al, Cu, Ni and Ti deposited by cold spray was performed in order to obtain a fundamental understanding of the damage process and quantify the material performance. Rectangular specimens cut from self-standing deposits with fatigue pre-cracks were tested in three-point bending. The K-IC values were obtained from J-R curves following the ASTM E1820 standard. The stress-strain behavior of the tested material was obtained from supplementary four-point bending. The cold spray deposits exhibited significantly lower fracture toughness than the corresponding wrought materials. The reduction was more pronounced for coatings with limited ductility (Ti and Cu), where the fracture toughness reached less than 12% of the wrought counterpart only. The higher ductility coatings of Al and Ni possessed fracture toughness of 18-25% of the wrought reference materials. The performed fractographic analysis revealed inter-particular decohesion as the major failure mode.
Anglický abstrakt
The study of fracture toughness of pure Al, Cu, Ni and Ti deposited by cold spray was performed in order to obtain a fundamental understanding of the damage process and quantify the material performance. Rectangular specimens cut from self-standing deposits with fatigue pre-cracks were tested in three-point bending. The K-IC values were obtained from J-R curves following the ASTM E1820 standard. The stress-strain behavior of the tested material was obtained from supplementary four-point bending. The cold spray deposits exhibited significantly lower fracture toughness than the corresponding wrought materials. The reduction was more pronounced for coatings with limited ductility (Ti and Cu), where the fracture toughness reached less than 12% of the wrought counterpart only. The higher ductility coatings of Al and Ni possessed fracture toughness of 18-25% of the wrought reference materials. The performed fractographic analysis revealed inter-particular decohesion as the major failure mode.
Klíčová slova anglicky
cold spray; fracture toughness; Processing; stress-strain
Vydáno
01.01.2020
Nakladatel
SPRINGER
Místo
NEW YORK
ISSN
1059-9630
Ročník
29
Číslo
1-2
Strany od–do
147–157
Počet stran
11
BIBTEX
@article{BUT182751,
author="Ondřej {Kovářík} and Jan {Siegl} and Jan {Čížek} and Tomáš {Chráska} and Jan {Kondas},
title="Fracture Toughness of Cold Sprayed Pure Metals",
year="2020",
volume="29",
number="1-2",
month="January",
pages="147--157",
publisher="SPRINGER",
address="NEW YORK",
issn="1059-9630"
}