Formation of Twin Boundaries in Rapidly Solidified Metals through Deformation Twinning

Huang, Binting; Yang, Jishi; Luo, Zhiheng; Wang, Yang; Wang, Nan

doi:10.3390/ma16134503

Open AccessArticle

Formation of Twin Boundaries in Rapidly Solidified Metals through Deformation Twinning

by

Binting Huang

¹,

Jishi Yang

¹,

Zhiheng Luo

^1,2

,

Yang Wang

³ and

Nan Wang

^1,2,4,*

¹

Department of Materials Science and Engineering, Guangdong Technion—Israel Institute of Technology, Shantou 515063, China

²

Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion—Israel Institute of Technology, Shantou 515063, China

³

State Key Laboratory of Rolling and Automation, Shenyang 110819, China

⁴

Department of Materials Science and Engineering, Technion—Israel Institute of Technology, Haifa 3200003, Israel

^*

Author to whom correspondence should be addressed.

Materials 2023, 16(13), 4503; https://doi.org/10.3390/ma16134503

Submission received: 3 May 2023 / Revised: 30 May 2023 / Accepted: 5 June 2023 / Published: 21 June 2023

(This article belongs to the Special Issue Processing–Microstructure–Properties Loop in Materials and Metallurgical Engineering)

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Abstract

The rapid solidification process is relevant to many emerging metallurgical technologies. Compared with conventional solidification processes, high-density microstructure defects and residual thermal stress are commonly seen in rapidly solidified metals. Among the various defects, potentially beneficial twin boundaries have been observed in the rapidly solidified nanocrystalline microstructures of many alloy systems. In this work, a pathway for forming twin boundaries in rapid solidification processes is proposed. A detailed derivation of strain inhomogeneities upon thermal shrinkage and the deformation twinning phase field method is given. By calculating cooling-induced thermal strain inhomogeneity in nanocrystalline metals and growth thresholds for deformation twinning using the phase field method, it is shown that residual thermal strain hotspots in the microstructure can reach the threshold for deformation twinning when the shear elastic property of grain boundaries is significantly different from the bulk.

Keywords: twinning; solidification; phase field

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MDPI and ACS Style

Huang, B.; Yang, J.; Luo, Z.; Wang, Y.; Wang, N. Formation of Twin Boundaries in Rapidly Solidified Metals through Deformation Twinning. Materials 2023, 16, 4503. https://doi.org/10.3390/ma16134503

AMA Style

Huang B, Yang J, Luo Z, Wang Y, Wang N. Formation of Twin Boundaries in Rapidly Solidified Metals through Deformation Twinning. Materials. 2023; 16(13):4503. https://doi.org/10.3390/ma16134503

Chicago/Turabian Style

Huang, Binting, Jishi Yang, Zhiheng Luo, Yang Wang, and Nan Wang. 2023. "Formation of Twin Boundaries in Rapidly Solidified Metals through Deformation Twinning" Materials 16, no. 13: 4503. https://doi.org/10.3390/ma16134503

APA Style

Huang, B., Yang, J., Luo, Z., Wang, Y., & Wang, N. (2023). Formation of Twin Boundaries in Rapidly Solidified Metals through Deformation Twinning. Materials, 16(13), 4503. https://doi.org/10.3390/ma16134503

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Formation of Twin Boundaries in Rapidly Solidified Metals through Deformation Twinning

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