Slip activation and twin evolution of TA18 alloy during plastic deformation based on in-situ SEM/EBSD

Xin Du; Jie Ren Yang; Wei Jin; Bo Peng; Ze Dong Liu; Shuai Yu Li; Ying Liu; Rui Run Chen

doi:10.1016/j.msea.2026.150372

Slip activation and twin evolution of TA18 alloy during plastic deformation based on in-situ SEM/EBSD

Xin Du
, Jie Ren Yang^*
, Wei Jin
, Bo Peng
, Ze Dong Liu
, Shuai Yu Li
, Ying Liu
, Rui Run Chen

^*Corresponding author for this work

College of Materials Science and Engineering
CAS - Institute of Metal Research
Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

The existence of strain gradients in the initial microstructure of TA18 alloy complicates the further improvement of the microscopic deformation mechanism during plastic deformation. This study leverages the dynamic strain advantages of in-situ SEM-EBSD characterization, employing slip trace analysis and twinning behavior to provide a detailed analysis of the room-temperature deformation mechanisms in TA18 alloy, which are dominated by prismatic <a> slip and pyramidal 1^st <c+a> slip. The analysis of grain deformation heterogeneity and the diverse characteristics of intragranular multi-slip revealed the strain dispersion mechanism responsible for the heterogeneous plastic deformation in TA18 alloy.

Original language	English
Article number	150372
Journal	Materials Science and Engineering: A
Volume	966
DOIs	https://doi.org/10.1016/j.msea.2026.150372
State	Published - Jul 2026
Externally published	Yes

Keywords

Deformation mechanism
In-situ SEM/EBSD
Slip trace
Strain dispersion
TA18 alloy

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10.1016/j.msea.2026.150372

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@article{b510eaa0b454416c8287f3f86f9d6d54,

title = "Slip activation and twin evolution of TA18 alloy during plastic deformation based on in-situ SEM/EBSD",

abstract = "The existence of strain gradients in the initial microstructure of TA18 alloy complicates the further improvement of the microscopic deformation mechanism during plastic deformation. This study leverages the dynamic strain advantages of in-situ SEM-EBSD characterization, employing slip trace analysis and twinning behavior to provide a detailed analysis of the room-temperature deformation mechanisms in TA18 alloy, which are dominated by prismatic slip and pyramidal 1st slip. The analysis of grain deformation heterogeneity and the diverse characteristics of intragranular multi-slip revealed the strain dispersion mechanism responsible for the heterogeneous plastic deformation in TA18 alloy.",

keywords = "Deformation mechanism, In-situ SEM/EBSD, Slip trace, Strain dispersion, TA18 alloy",

author = "Xin Du and Yang, \{Jie Ren\} and Wei Jin and Bo Peng and Liu, \{Ze Dong\} and Li, \{Shuai Yu\} and Ying Liu and Chen, \{Rui Run\}",

note = "Publisher Copyright: {\textcopyright} 2026 Elsevier B.V.",

year = "2026",

month = jul,

doi = "10.1016/j.msea.2026.150372",

language = "英语",

volume = "966",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Slip activation and twin evolution of TA18 alloy during plastic deformation based on in-situ SEM/EBSD

AU - Du, Xin

AU - Yang, Jie Ren

AU - Jin, Wei

AU - Peng, Bo

AU - Liu, Ze Dong

AU - Li, Shuai Yu

AU - Liu, Ying

AU - Chen, Rui Run

PY - 2026/7

Y1 - 2026/7

N2 - The existence of strain gradients in the initial microstructure of TA18 alloy complicates the further improvement of the microscopic deformation mechanism during plastic deformation. This study leverages the dynamic strain advantages of in-situ SEM-EBSD characterization, employing slip trace analysis and twinning behavior to provide a detailed analysis of the room-temperature deformation mechanisms in TA18 alloy, which are dominated by prismatic slip and pyramidal 1st slip. The analysis of grain deformation heterogeneity and the diverse characteristics of intragranular multi-slip revealed the strain dispersion mechanism responsible for the heterogeneous plastic deformation in TA18 alloy.

AB - The existence of strain gradients in the initial microstructure of TA18 alloy complicates the further improvement of the microscopic deformation mechanism during plastic deformation. This study leverages the dynamic strain advantages of in-situ SEM-EBSD characterization, employing slip trace analysis and twinning behavior to provide a detailed analysis of the room-temperature deformation mechanisms in TA18 alloy, which are dominated by prismatic slip and pyramidal 1st slip. The analysis of grain deformation heterogeneity and the diverse characteristics of intragranular multi-slip revealed the strain dispersion mechanism responsible for the heterogeneous plastic deformation in TA18 alloy.

KW - Deformation mechanism

KW - In-situ SEM/EBSD

KW - Slip trace

KW - Strain dispersion

KW - TA18 alloy

UR - https://www.scopus.com/pages/publications/105038176303

U2 - 10.1016/j.msea.2026.150372

DO - 10.1016/j.msea.2026.150372

M3 - 文章

AN - SCOPUS:105038176303

SN - 0921-5093

VL - 966

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

M1 - 150372

ER -

Slip activation and twin evolution of TA18 alloy during plastic deformation based on in-situ SEM/EBSD

Abstract

Keywords

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