The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.
Effect of Cr addition on microstructure and welding solidification cracking susceptibility of Co-Al-W based superalloys
Abstract
Abstract The novel γ′-strengthened cobalt-base superalloys are promising candidates for high temperature materials. However, the weldability has rarely been studied. In this work, the effect of Cr addition on microstructure and solidification cracking susceptibility during tungsten inert gas welding of the Co-Al-W-xCr-0.5C (where x = 2.5, 5 and 7.5 at%, named as 2.5Cr, 5Cr and 7.5Cr) alloys were investigated. Results show that there are M6C carbide, β phase and γ/γ′ phase existed in all alloys. Cr addition promotes the precipitation of M6C carbides and changes the morphology of γ′ phases from cubic to round-cornered, which is due to the occupied lattice of W atoms by Cr atoms. In addition, the welding solidification cracks length declines significantly with increasing Cr content. Further studies by differential thermal analysis and electron back scattering diffraction show that the relative low solidification cracking susceptibility of 7.5Cr is mainly attributed to the narrow solidification temperature range, sufficient liquid phases backfilling the grain boundary in partially melted zone, serrated grain boundaries and large numbers of solidification sub-grain boundaries.
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“Fig.8(c) shows the weld bead characteristics of a laser-welded Al-Cu joint without Ni plating, revealing prominent cracks characteristic of solidification cracking[35].”
From Effect of nickel interlayer thickness on intermetallic compound formation and interfacial integrity in pulsed laser welding of aluminum and copper (2026) · cites this paper as [35]
Citations
Cites
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Cracking mechanism and susceptibility of laser melting deposited Inconel 738 superalloy
Zhang, X., Chen, H., Xu, L., Xu, J., Ren, X., & Chen, X. (2019) · Materials & Design · doi:10.1016/j.matdes.2019.108105 · Cited by 231
Effect of serrated grain boundaries on the creep property of Inconel 718 superalloy
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Effect of alloying on the oxidation behaviour of Co–Al–W superalloys
Yan, H., Vorontsov, V. A., & Dye, D. (2014) · Corrosion Science · doi:10.1016/j.corsci.2014.03.002 · Cited by 138
The liquation cracking behavior of IN738LC superalloy during low power Nd:YAG pulsed laser welding
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Cited by
Singh, R., Arora, N., & Choudhary, A. (2026) · Welding in the World · doi:10.1007/s40194-026-02375-5 · Cited by 6
“Figure 8(c) shows the weld bead characteristics of a laser-welded Al-Cu joint without Ni plating, revealing prominent cracks characteristic of solidification cracking [35].”
Metadata
- Authors
- Liu, C., Sun, Y., Wen, M., He, T., & Yu, J.
- Affiliations
- University of Science and Technology of China (CN)
- Chinese Academy of Sciences (CN)
- Northeastern University (CN)
- Corresponding author
- Sun, Yuan
- Yu, Jinjiang
- Venue
- Journal of Manufacturing Processes
- Publisher
- Elsevier BV
- Published
- 2020-08
- Volume
- 56
- Pages
- 820-829
- ISSN
- 1526-6125 (ISSN-L)
- OpenAlex
- W3014123941
- Cited by
- 27
- References
- 45
- Citations by year
- 2026: 6 · 2025: 4 · 2024: 3 · 2023: 3 · 2022: 3 · 2021: 7 · 2020: 1
- FWCI
- 1.72
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
- www.elsevier.com/legal/tdmrep-license (tdm)
- Locations
- Journal of Manufacturing Processes (publishedVersion)
- Funders
- National Natural Science Foundation of China (51971214, 51771191)
- Aeronautics Power Foundation of China (DLJJ1825)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › High Temperature Alloys and Creep
- Physical Sciences › Engineering › Mechanical Engineering › Intermetallics and Advanced Alloy Properties
- Physical Sciences › Engineering › Mechanical Engineering › High Entropy Alloys Studies
- Keywords
- cobalt-based superalloys, Co-Al-W superalloys, chromium addition, hot cracking, TIG welding, weldability, M6C carbides, solidification range, serrated grain boundaries, microstructure
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- CoChat. (2026). Citation check: Effect of Cr addition on microstructure and welding solidification cracking susceptibility of Co-Al-W based superalloys. https://app.cochat.ai/papers/10.1016/j.jmapro.2020.03.049
- The paper
- Liu, C., Sun, Y., Wen, M., He, T., & Yu, J. (2020). Effect of Cr addition on microstructure and welding solidification cracking susceptibility of Co-Al-W based superalloys. Journal of Manufacturing Processes. https://doi.org/10.1016/j.jmapro.2020.03.049
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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