Deformation incompatibility enables hetero-deformation induced strengthening in Ti/Nb laminates

S. Jiang; R. Lin Peng; X. Zhao; L. Zuo; N. Jia

doi:10.1080/21663831.2022.2128916

Materials Research Letters (Feb 2023)

Deformation incompatibility enables hetero-deformation induced strengthening in Ti/Nb laminates

S. Jiang,
R. Lin Peng,
X. Zhao,
L. Zuo,
N. Jia

Affiliations

S. Jiang: Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, People’s Republic of China
R. Lin Peng: Division of Engineering Materials, Department of Management and Engineering, Linköping University, Linköping, Sweden
X. Zhao: Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, People’s Republic of China
L. Zuo: Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, People’s Republic of China
N. Jia: Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, People’s Republic of China

DOI: https://doi.org/10.1080/21663831.2022.2128916
Journal volume & issue: Vol. 11, no. 2
pp. 126 – 133

Abstract

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Deformation incompatibility in Ti/Nb laminates under uniaxial tension was revealed by in-situ neutron diffraction. During uniform deformation of the bulk laminates, the hard Nb constrained by the soft Ti showed moderate work hardening and only slightly decreased flow stress. The mechanical incompatibility accumulated in both elastic and elasto-plastic regimes between the metals lead to pronounced hetero-deformation induced (HDI) strengthening, and the HDI stress was comparable to the maximum phase-to-phase interaction. The HDI hardening and interphase stress showed consistent evolution trends, implying that the interaction between dissimilar metals can be used as an important indicator for evaluating HDI strengthening and hardening.

Published in Materials Research Letters

ISSN: 2166-3831 (Online)
Publisher: Taylor & Francis Group
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.tandfonline.com/journals/tmrl

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