High-throughput microstructure characterization of compositionally graded Cr–Nb–Ti–Zr complex concentrated alloys (CCA) prepared by laser directed energy deposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F25%3AN0000034" target="_blank" >RIV/26316919:_____/25:N0000034 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/25:10511301 RIV/60461373:22310/25:43932576

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S223878542502616X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S223878542502616X?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmrt.2025.10.077" target="_blank" >10.1016/j.jmrt.2025.10.077</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-throughput microstructure characterization of compositionally graded Cr–Nb–Ti–Zr complex concentrated alloys (CCA) prepared by laser directed energy deposition

Popis výsledku v původním jazyce

Systematic variation of chemical compositions in quaternary Cr-Nb-Ti-Zr based complex concentrated alloys was achieved through the additive manufacturing technique of laser directed energy deposition (L-DED). Two separate feeders containing binary equimolar mixtures of elemental powders (CrNb/TiZr and CrZr/TiNb) were used simultaneously for deposition of gradient samples on thermally insulated substrate plate. The compositions ranging from approx. 5 to approx. 45 at. % for each element were obtained in the deposited samples. Investigation of the chemical composition effects on the phase content after homogenization heat treatment at 1200 degrees C, within one individual sample, was performed using microhardness measurements, XRD and EDS techniques and microstructural observations by SEM. Cr-Nb-Ti-Zr single-phase/multi-phase regions in the studied quaternary phase diagram were determined. Multi-phase regions contain Cr-rich BCC Laves type phase of varying composition as determined by the chemical composition of the matrix. The presence of the BCC Laves type phase in multi-phase areas was confirmed by CALPHAD simulations. The L-DED technique was found to be capable of producing compositionally graded complex concentrated alloys on the basis of refractory elemental powders with high melting temperatures for the high-throughput microstructure characterization.

Název v anglickém jazyce

High-throughput microstructure characterization of compositionally graded Cr–Nb–Ti–Zr complex concentrated alloys (CCA) prepared by laser directed energy deposition

Popis výsledku anglicky

Systematic variation of chemical compositions in quaternary Cr-Nb-Ti-Zr based complex concentrated alloys was achieved through the additive manufacturing technique of laser directed energy deposition (L-DED). Two separate feeders containing binary equimolar mixtures of elemental powders (CrNb/TiZr and CrZr/TiNb) were used simultaneously for deposition of gradient samples on thermally insulated substrate plate. The compositions ranging from approx. 5 to approx. 45 at. % for each element were obtained in the deposited samples. Investigation of the chemical composition effects on the phase content after homogenization heat treatment at 1200 degrees C, within one individual sample, was performed using microhardness measurements, XRD and EDS techniques and microstructural observations by SEM. Cr-Nb-Ti-Zr single-phase/multi-phase regions in the studied quaternary phase diagram were determined. Multi-phase regions contain Cr-rich BCC Laves type phase of varying composition as determined by the chemical composition of the matrix. The presence of the BCC Laves type phase in multi-phase areas was confirmed by CALPHAD simulations. The L-DED technique was found to be capable of producing compositionally graded complex concentrated alloys on the basis of refractory elemental powders with high melting temperatures for the high-throughput microstructure characterization.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T

ISSN

2238-7854

e-ISSN

2214-0697

Svazek periodika

39

Číslo periodika v rámci svazku

NOV-DEC 2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

3915-3926

Kód UT WoS článku

001598779900001

EID výsledku v databázi Scopus

2-s2.0-105026248220