High performance Nb/TiNi nanocomposites produced by packaged accumulative roll bonding

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Daqiang Jiang
  • Jian Song
  • Hong Yang
  • Yinong Liu
  • Xiaohua Jiang
  • Kaiyuan Yu
  • Lishan Cui

Detail(s)

Original languageEnglish
Article number108403
Journal / PublicationComposites Part B: Engineering
Volume202
Online published5 Sep 2020
Publication statusPublished - 1 Dec 2020
Externally publishedYes

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.

Research Area(s)

  • Martensitic transformation, Nanocomposite, Packaged accumulative roll bonding, Shape memory alloy, Strain matching

Citation Format(s)

High performance Nb/TiNi nanocomposites produced by packaged accumulative roll bonding. / Jiang, Daqiang; Song, Jian; Yang, Hong; Liu, Yinong; Jiang, Xiaohua; Ren, Yang; Yu, Kaiyuan; Cui, Lishan.

In: Composites Part B: Engineering, Vol. 202, 108403, 01.12.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review