Journal Article

PUBDB-2025-00029

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Excellent strength/ductility synergy by optimization of post-weld heat treatment for gas metal arc welded CoCrFeMnNi high entropy alloys with 410 stainless filler wire: High-throughput thermodynamic modelling with experimental validation

Shen, J. (Corresponding author)Extern* ; Kim, R. E. ; He, J. ; Yang, J. ; Lopes, J. G. ; Zeng, Z. ; Schell, N.HZG*Hereon* ; Kim, H. S.Extern*XFEL.EU* ; Oliveira, J. P. (Corresponding author)Extern*

2025
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.matdes.2024.113556  doi:10.3204/PUBDB-2025-00029

Abstract: Post-weld annealing is a promising method for enhancing the performance of welded joints. However, traditionaltrial-and-error approaches are often time-consuming and inefficient, limiting their application in industrialproduction. To overcome this challenge, this study integrates high-throughput thermodynamic simulationtechniques with a custom Python script to rapidly screen annealing temperatures for GMAWed CoCrFeMnNi highentropy alloy welded joints with ERNiMo-410 filler wire. By employing a combination of microstructuralcharacterizations (such as Electron Backscatter Diffraction (EBSD) and Synchrotron X-ray Diffraction (SXRD))and mechanical testing (including hardness testing and tensile Digital Image Correlation (DIC) analysis), thestudy validates the effects of selected annealing temperatures on the microstructure evolution and mechanicalbehavior of the welded joints. The results demonstrate that the optimized annealing temperature significantlyenhances the uniformity of the microstructure and increases elongation at fracture by approximately sevenfold to43.1 %, while maintaining comparable yield and ultimate strengths. This study highlights the potential industrialvalue of this method, offering an efficient and scientific approach for optimizing welded joint performance.

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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)
2. FS-Proposal: I-20210899 EC (I-20210899-EC) (I-20210899-EC)
3. CALIPSOplus - Convenient Access to Light Sources Open to Innovation, Science and to the World (730872) (730872)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
; ; ; ; Article Processing Charges ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; Fees ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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