• Complex
  • Title
  • Author
  • Keyword
  • Abstract
  • Scholars
Search

Author:

Ding, Lei (Ding, Lei.) | Zhou, Yumei (Zhou, Yumei.) | Xu, Yangyang (Xu, Yangyang.) | Dang, Pengfei (Dang, Pengfei.) | Ding, Xiangdong (Ding, Xiangdong.) | Sun, Jun (Sun, Jun.) | Lookman, Turab (Lookman, Turab.) | Xue, Dezhen (Xue, Dezhen.)

Indexed by:

Abstract:

In the present study, the reversible adiabatic temperature change (Delta T-ad) of shape memory alloys was shown to be proportional to the mechanical work released by the reverse martensitic transformation during unloading (Delta W-u). As there exists a considerable amount of data (Delta W-u) on superelastic stress-strain measurements in shape memory alloys, the proposed relationship allows us to predict Delta T-ad without caloric measurements. The estimated Delta T-ad from the Delta W-u of different Ti-Ni alloys shows good linear relationship with the directly measured values. Moreover, following such a design criterion and by tuning of composition and thermo-mechanical treatment, a group of Ti-Ni binary shape memory alloys with directly measured Delta T-ad larger than 35 K under tension were achieved. The large Delta T-ad and Delta W-u can be ascribed to the grain refinement and the heterogeneous internal stress fields after the thermo-mechanical treatment, which have enhanced the critical stress of superelasticity and recoverability of martensitic transformation during unloading. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Keyword:

Elastocaloric effect Refrigeration Shape memory alloy Superelasticity

Author Community:

  • [ 1 ] [Ding, Lei]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 2 ] [Zhou, Yumei]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 3 ] [Xu, Yangyang]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 4 ] [Dang, Pengfei]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 5 ] [Ding, Xiangdong]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 6 ] [Sun, Jun]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 7 ] [Xue, Dezhen]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 8 ] [Lookman, Turab]AiMat Res LLC, Santa Fe, NM 87501 USA

Reprint Author's Address:

Show more details

Related Keywords:

Source :

ACTA MATERIALIA

ISSN: 1359-6454

Year: 2021

Volume: 218

8 . 2 0 3

JCR@2020

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:36

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 16

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

FAQ| About| Online/Total:1062/168833029
Address:XI'AN JIAOTONG UNIVERSITY LIBRARY(No.28, Xianning West Road, Xi'an, Shaanxi Post Code:710049) Contact Us:029-82667865
Copyright:XI'AN JIAOTONG UNIVERSITY LIBRARY Technical Support:Beijing Aegean Software Co., Ltd.