Effect of warm rolling on microstructure evolution and mechanical properties of a Ni–W–Co–Ta medium-heavy alloy
Tang, Jin-Jin; Xiong, Yi; Zha, Xiao-Qin; Du, Xiu-Ju; Li, Yong; Ren, Feng-Zhang; Wang, Shubo (2024-11-26)
Avaa tiedosto
Sisältö avataan julkiseksi: 26.11.2026
Elsevier
26.11.2024
Tang, J.-J., Xiong, Y., Zha, X.-Q., Du, X.-J., Li, Y., Ren, F.-Z., & Wang, S. (2024). Effect of warm rolling on microstructure evolution and mechanical properties of a Ni–W–Co–Ta medium-heavy alloy. Materials Characterization, 218, 114591. https://doi.org/10.1016/j.matchar.2024.114591
https://creativecommons.org/licenses/by-nc-nd/4.0/
© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202412027012
https://urn.fi/URN:NBN:fi:oulu-202412027012
Tiivistelmä
Abstract
The microstructure and mechanical properties influenced by warm rolling in a Ni–W–Co–Ta medium-heavy alloy (MHA) is studied in this work in order to explore the optimal processing-microstructure-property paradigm. The results show that the initially equiaxed grains evolves into a fibrous structure, aligned with the rolling direction, as the rolling progresses. Texture analysis reveals a transition from Brass-type component to a mixed texture component of Brass-type and Copper-type with increasing deformation. Concurrently, dislocation density rise, and nano deformation twins and precipitation of Ni4W take place. The strength is significantly enhanced. However, the trade-off between strength and ductility still persists. An optimal combination of strength and ductility has been achieved at a 50 % rolling deformation. These demonstrate that warm rolling is an effective processing route for manufacturing high-strength and still ductile MHA.
The microstructure and mechanical properties influenced by warm rolling in a Ni–W–Co–Ta medium-heavy alloy (MHA) is studied in this work in order to explore the optimal processing-microstructure-property paradigm. The results show that the initially equiaxed grains evolves into a fibrous structure, aligned with the rolling direction, as the rolling progresses. Texture analysis reveals a transition from Brass-type component to a mixed texture component of Brass-type and Copper-type with increasing deformation. Concurrently, dislocation density rise, and nano deformation twins and precipitation of Ni4W take place. The strength is significantly enhanced. However, the trade-off between strength and ductility still persists. An optimal combination of strength and ductility has been achieved at a 50 % rolling deformation. These demonstrate that warm rolling is an effective processing route for manufacturing high-strength and still ductile MHA.
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