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Abstract
Taking full advantage of intrinsic high strength of nano-reinforcements has been proven difficult in a composite until the concept of strain matching was experimental verified in a nanowire Nb/TiNi in-situ composite, which was obtained via solidifying eutectic Nb/TiNi and subsequent severe wire drawing. However, the volume fraction of the nano-reinforcement was dictated by eutectic reaction, which severely limited the development of high-performance composites. In this paper, the martensitic transformation nanocomposites were successfully acquired with increased volume fraction and changeable morphology of the nano-reinforcement through hot packaged ARB (PARB) and subsequent wire drawing. The nano-reinforcement with lamellar configuration in the composite could exhibit a large lattice strain of ~3.8%, which demonstrated the applicability and effectiveness of the strain matching principle in nano-lamellar composite. The obtained composites show a yield strength over 2.0 GPa and a quasi-linear elastic strain as larger as ~6.5% with adjustable apparent elastic modulus from 30 to 50 GPa.
Original language | English |
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Article number | 108403 |
Journal | Composites Part B: Engineering |
Volume | 202 |
DOIs | |
Publication status | Published - 1 Dec 2020 |
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Dive into the research topics of 'High performance Nb/TiNi nanocomposites produced by packaged accumulative roll bonding'. Together they form a unique fingerprint.Projects
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Bio-inspired design overcoming strength-toughness trade-off of composites
Yang, H. (Investigator 01), Yan, C. (Investigator 02), Zhang, J. (Investigator 03), Cui, L. (Investigator 04) & Ren, Y. (Investigator 05)
ARC Australian Research Council
15/05/18 → 31/12/22
Project: Research