Study on phase transformation, internal stress and texture evolution of cold drawn Nb nanowire-NiTi composite wires upon annealing

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

1 Scopus Citations
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Author(s)

  • Xiangguang Kong
  • Haimin Ding
  • Jiaqi Zhang
  • Qing Liu
  • Jinfeng Wang
  • Jiyu Zhou
  • Fugong Qi
  • Pengjie Wang
  • Shijie Hao

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number108066
Journal / PublicationIntermetallics
Volume163
Online published19 Sept 2023
Publication statusPublished - Dec 2023

Abstract

Phase transformation, internal stress and texture evolution of cold drawn Nb nanowire-NiTi composite wires upon annealing were investigated. Nb nanowires in the composite wires exhibited strong <110> fiber texture and internal stress anisotropy, and the internal stress in the annealed composite wires gradually decreased as the annealing temperature increased above 500 °C, and Nb nanowires partly spheroidized into nanoparticles after annealed at 800 °C. Different temperatures annealed composite wires exhibited significantly different phase transformation behaviors, and NiTi matrix in these composites is in different phases at room temperature. With the increase of annealing temperature, the phase structure of the NiTi matrix underwent the evolution of oriented B19′ martensite, B2 parent phase, oriented R phase and self-accommodated B19′ martensite phase. Meanwhile, the reoriented textures of B19′ martensite and R phases are induced by the internal stress in NiTi matrix. © 2023 Elsevier Ltd.

Research Area(s)

  • Composite, High-energy X-ray diffraction, Microstructural evolution, Nanowire, NiTi shape memory alloy

Citation Format(s)

Study on phase transformation, internal stress and texture evolution of cold drawn Nb nanowire-NiTi composite wires upon annealing. / Kong, Xiangguang; Ding, Haimin; Zhang, Jiaqi et al.
In: Intermetallics, Vol. 163, 108066, 12.2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review