Cold Sprayed Deposits Characterized by Positron Annihilation Spectroscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU155937" target="_blank" >RIV/00216305:26210/24:PU155937 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/24:00603761 RIV/61389021:_____/24:00603761 RIV/00216208:11320/24:10491708

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11666-024-01763-x" target="_blank" >https://link.springer.com/article/10.1007/s11666-024-01763-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11666-024-01763-x" target="_blank" >10.1007/s11666-024-01763-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cold Sprayed Deposits Characterized by Positron Annihilation Spectroscopy

Popis výsledku v původním jazyce

Cold spray (CS) is a rapid additive manufacturing method for deposition of metallic materials at rates significantly exceeding the laser-based methods, while retaining high deposit quality and low process cost. The mechanisms of the high-rate, extensive deformation of the materials in the CS process were recently intensively studied on macro- and meso-levels. In this paper, we introduce positron annihilation spectroscopy as a viable and reliable analytical method to study lattice defects created in the cold sprayed materials on the atomic-scale level. For the first demonstration, four different base metals were selected (Al, Cu, Ni, and Ti). A high density of dislocations was observed in all four deposits. In addition, deposits of fcc metals (Al, Cu, and Ni) also contain a considerable concentration of vacancy clusters. The results show that the extremely fast deformation in cold spray deposition process prevents recovery of vacancies which tend to agglomerate into clusters.

Název v anglickém jazyce

Cold Sprayed Deposits Characterized by Positron Annihilation Spectroscopy

Popis výsledku anglicky

Cold spray (CS) is a rapid additive manufacturing method for deposition of metallic materials at rates significantly exceeding the laser-based methods, while retaining high deposit quality and low process cost. The mechanisms of the high-rate, extensive deformation of the materials in the CS process were recently intensively studied on macro- and meso-levels. In this paper, we introduce positron annihilation spectroscopy as a viable and reliable analytical method to study lattice defects created in the cold sprayed materials on the atomic-scale level. For the first demonstration, four different base metals were selected (Al, Cu, Ni, and Ti). A high density of dislocations was observed in all four deposits. In addition, deposits of fcc metals (Al, Cu, and Ni) also contain a considerable concentration of vacancy clusters. The results show that the extremely fast deformation in cold spray deposition process prevents recovery of vacancies which tend to agglomerate into clusters.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/GA22-14048S" target="_blank" >GA22-14048S: Vývoj mikrostruktury a multiplikace poruch krystalické mřížky při kinetickém nanášení</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF THERMAL SPRAY TECHNOLOGY

ISSN

1059-9630

e-ISSN

1544-1016

Svazek periodika

33

Číslo periodika v rámci svazku

2-3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

666-675

Kód UT WoS článku

001190439200001

EID výsledku v databázi Scopus

2-s2.0-85188537733