Measurement of two-dimensional residual stress in nanocrystalline superelastic NiTi fabricated with pre-strain laser shock peening

Yan，Kai1,7; Wei，Pengbo1,7; Chu，Kangjie2; He，Weifeng3,8; Yu，Chao4; Ren，Fuzeng5; Sun，Qingping6,9

2022

10.1177/10812865221090589

MATHEMATICS AND MECHANICS OF SOLIDS   Impact Factor & Quartile

1081-2865

1741-3028

The measurement of residual stress is a challenging issue in industrial fields. In this work, focused ion beam (FIB) and digital image correlation (DIC) are combined together to measure the two-dimensional residual stress in nanocrystalline NiTi plates processed with pre-strain laser shock peening (LSP). A four-point bending experiment verifies the accuracy of this measurement method. The pre-strain LSP-treated surfaces are found to have significant compressive residual stress along the pre-strain direction and tensile residual stress along the vertical to pre-strain direction, which verifies pre-strain LSP as an efficient approach to create gradient residual stress layers in nanocrystalline NiTi plates. The FIB-DIC method has also proven to be an attractive tool to measure the two-dimensional residual stress in phase transition nanocrystalline materials.

digital image correlation focused ion beam laser shock peening NiTi shape memory alloy residual stress

SCI ; EI

English

Corresponding

WOS:000792169200001

20222012122303

Binary alloys ; Focused ion beams ; Image analysis ; Nanocrystalline materials ; Nanocrystals ; Residual stresses ; Shape memory effect ; Titanium alloys

Titanium and Alloys:542.3 ; Nanotechnology:761 ; Physical Properties of Gases, Liquids and Solids:931.2 ; High Energy Physics:932.1 ; Crystalline Solids:933.1 ; Mechanical Variables Measurements:943.2 ; Materials Science:951

ENGINEERING

2-s2.0-85132662050

Scopus

1.Department of Mechanical and Aerospace Engineering,The Hong Kong University of Science and Technology,Hong Kong
2.Department of Mechanical and Aerospace Engineering,The Hong Kong University of Science and Technology,Hong Kong
3.State Key Laboratory for Manufacturing Systems Engineering,School of Mechanical Engineering,Xi’an Jiaotong University,Xi’an,China
4.Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province,School of Mechanics and Engineering,Southwest Jiaotong University,Chengdu,China
5.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,China
6.Department of Mechanical and Aerospace Engineering,The Hong Kong University of Science and Technology,Hong Kong
7.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,China
8.Science and Technology on Plasma Dynamics Laboratory,Air Force Engineering University,Xi’an,China
9.HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute,Shenzhen,Futian,China

Yan，Kai,Wei，Pengbo,Chu，Kangjie,et al. Measurement of two-dimensional residual stress in nanocrystalline superelastic NiTi fabricated with pre-strain laser shock peening[J]. MATHEMATICS AND MECHANICS OF SOLIDS,2022,27:1559-1568.

Yan，Kai.,Wei，Pengbo.,Chu，Kangjie.,He，Weifeng.,Yu，Chao.,...&Sun，Qingping.(2022).Measurement of two-dimensional residual stress in nanocrystalline superelastic NiTi fabricated with pre-strain laser shock peening.MATHEMATICS AND MECHANICS OF SOLIDS,27,1559-1568.

Yan，Kai,et al."Measurement of two-dimensional residual stress in nanocrystalline superelastic NiTi fabricated with pre-strain laser shock peening".MATHEMATICS AND MECHANICS OF SOLIDS 27(2022):1559-1568.