The Dynamic Recrystallization and α Texture Evolution of As-Sintered GNPs/TA15 Composites During Extrusion

Li, Zongan; Wu, Shuo; Fu, Yongkang; Zhou, Jingxin; Sun, Liran; Hou, Jiabin; Cui, Chao; Li, Xiaocong; Li, Zhikun

doi:10.3390/ma18235398

Open AccessCommunication

The Dynamic Recrystallization and α Texture Evolution of As-Sintered GNPs/TA15 Composites During Extrusion

by

Zongan Li

^1,2,

Shuo Wu

¹

,

Yongkang Fu

¹,

Jingxin Zhou

¹,

Liran Sun

¹,

Jiabin Hou

^1,2,*,

Chao Cui

^3,*,

Xiaocong Li

¹ and

Zhikun Li

¹

School of Navigation and Shipping, Shandong Jiaotong University, Weihai 264209, China

²

School of Materials Science and Engineering, and School of Ocean Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China

³

Beijing Institute of Aerospace Systems Engineering, Beijing 100076, China

^*

Authors to whom correspondence should be addressed.

Materials 2025, 18(23), 5398; https://doi.org/10.3390/ma18235398

Submission received: 29 October 2025 / Revised: 20 November 2025 / Accepted: 25 November 2025 / Published: 30 November 2025

(This article belongs to the Section Metals and Alloys)

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Abstract

During the initial extrusion stage of the as-sintered GNPs/TA15 composite, dislocations accumulated along the GNPs and grain boundaries, leading to the formation of a subgrain structure. As extrusion progressed, these subgrains underwent rotation and transformed into finer grains through dynamic recrystallization. This process resulted in significant grain refinement, with the average grain size decreasing from 3.04 μm to 1.30 μm. Concurrently, the Ti matrix adjacent to the GNPs initially flowed towards the GNPs and subsequently elongated along the extrusion direction (ED). Furthermore, the deformed α grains experienced slip along the {10

\bar{1}

0}⟨11

\bar{2}

0⟩ system, giving rise to the development of [10

\bar{1}

1]//ED and [20

\bar{2}

1]//ED α textures. This study elucidates the influence of GNPs on the microstructural evolution, particularly in terms of grain refinement and the formation of α textures, as a function of increasing extrusion ratios.

Keywords: GNPs; Ti matrix; dynamic recrystallization; texture; extrusion ratios

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MDPI and ACS Style

Li, Z.; Wu, S.; Fu, Y.; Zhou, J.; Sun, L.; Hou, J.; Cui, C.; Li, X.; Li, Z. The Dynamic Recrystallization and α Texture Evolution of As-Sintered GNPs/TA15 Composites During Extrusion. Materials 2025, 18, 5398. https://doi.org/10.3390/ma18235398

AMA Style

Li Z, Wu S, Fu Y, Zhou J, Sun L, Hou J, Cui C, Li X, Li Z. The Dynamic Recrystallization and α Texture Evolution of As-Sintered GNPs/TA15 Composites During Extrusion. Materials. 2025; 18(23):5398. https://doi.org/10.3390/ma18235398

Chicago/Turabian Style

Li, Zongan, Shuo Wu, Yongkang Fu, Jingxin Zhou, Liran Sun, Jiabin Hou, Chao Cui, Xiaocong Li, and Zhikun Li. 2025. "The Dynamic Recrystallization and α Texture Evolution of As-Sintered GNPs/TA15 Composites During Extrusion" Materials 18, no. 23: 5398. https://doi.org/10.3390/ma18235398

APA Style

Li, Z., Wu, S., Fu, Y., Zhou, J., Sun, L., Hou, J., Cui, C., Li, X., & Li, Z. (2025). The Dynamic Recrystallization and α Texture Evolution of As-Sintered GNPs/TA15 Composites During Extrusion. Materials, 18(23), 5398. https://doi.org/10.3390/ma18235398

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The Dynamic Recrystallization and α Texture Evolution of As-Sintered GNPs/TA15 Composites During Extrusion

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