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作者:

Cai, J. (Cai, J..) | Mao, S. (Mao, S..) | Liu, Y. (Liu, Y..) | Cui, L. (Cui, L..) | Zhang, J. (Zhang, J..) | Zhang, Z. (Zhang, Z..) | Han, X. (Han, X..)

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EI Scopus SCIE

摘要:

NiTi shape memory alloys (SMAs) with marked hysteresis between the forward and reverse martensitic transformations are attractive for the applications in passive damping. However, the stress hysteresis of NiTi SMAs is usually 150-300 MPa, limiting their energy dissipation to similar to 10 MJ/m(3). Here, we designed a bulk Nb/NiTi laminate composite with a reversible energy dissipation capacity of similar to 30 MJ/m(3) and a plateau strength of similar to 750 MPa, which are outstanding among the common bulk energy dissipation materials. This high performance is attributed to the strong interaction between the pseudoelastic NiTi and the non-pseudoelastic Nb lamellae within the composite. The intrinsically plastic Nb layers deform in a pseudo-super elastic manner, involving elastic lattice deformation, reversible motion of dislocations, and reversed plastic deformation. These are enabled by the unique phenomenon of lattice strain matching the martensitic transforming. This study offers a new pathway for the design of high energy dissipated bulk materials.

关键词:

NiTi Damping Pseudoelasticity Martensitic transformation Shape memory alloy Composite

作者机构:

  • [ 1 ] [Cai, J.]Beijing Univ Technol, Beijing Key Lab Microstructure & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 2 ] [Mao, S.]Beijing Univ Technol, Beijing Key Lab Microstructure & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, J.]Beijing Univ Technol, Beijing Key Lab Microstructure & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Z.]Beijing Univ Technol, Beijing Key Lab Microstructure & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 5 ] [Han, X.]Beijing Univ Technol, Beijing Key Lab Microstructure & Property Adv Mat, Beijing 100124, Peoples R China
  • [ 6 ] [Liu, Y.]Univ Western Australia, Dept Mech Engn, Perth, WA 6009, Australia
  • [ 7 ] [Cui, L.]China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
  • [ 8 ] [Zhang, Z.]Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310058, Peoples R China

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来源 :

MATERIALS TODAY NANO

ISSN: 2588-8420

年份: 2022

卷: 19

1 0 . 3

JCR@2022

1 0 . 3 0 0

JCR@2022

JCR分区:1

中科院分区:1

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