Journal Article

PUBDB-2022-04778

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Study of solid state transformations and their effect on mechanical response in the stoichiometric Ni$_2$Cr using in-situ synchrotron radiation diffraction experiments

Medina, J. (Corresponding author)Extern* ; Pérez, P. ; Vega, M. F. ; Garces, G.Extern* ; Maawad, E.Extern*HZG* ; Schell, N.Extern*HZG* ; Adeva, P.

2022
Science Direct New York, NY

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Please use a persistent id in citations: doi:10.1016/j.matchar.2022.112279

Abstract: A complete microstructural characterization of the stoichiometric Ni$_2$Cr alloy after different ageing times in which different degrees of order are attained has been carried out. The study of order-disorder transformation has been done using synchrotron radiation diffraction monitoring eventual changes in high-energy X-ray diffraction (HEXRD) patterns every six seconds in the course of differential scanning calorimetry DSC experiments. According to acquired data, the onset of the order-disorder transformation occurs at 630 ◦C, temperature higher than that reported in previous works. In addition, the appearance of fine carbide precipitation has also been found inside the grains and at grain boundaries. Both ordering of the stoichiometric Ni$_2$Cr and carbide precipitation seems to be responsible for the strengthening of the alloy.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Helmholtz-Zentrum Hereon (Hereon)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)

Appears in the scientific report 2022

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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