Micromechanism of Propagation of Fatigue Cracks in Pseudoelastic NiTi Shape-Memory Alloy

被引：2

作者：

Yasnii, V. P. ^{[1
]}

Student, O. Z. ^{[2
]}

Yasnii, P. V. ^{[1
]}

Nykyforchyn, H. M. ^{[2
]}

机构：

[1] I Pulyui Ternopil Natl Tech Univ, Ternopol, Ukraine

[2] Ukrainian Natl Acad Sci, Karpenko Physicomech Inst, Lvov, Ukraine

来源：

MATERIALS SCIENCE | 2021年 / 56卷 / 04期

关键词：

pseudoelastic NiTi alloy; fatigue crack growth; stress ratio in a loading cycle; micromechanism of crack growth;

D O I：

10.1007/s11003-021-00451-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We analyze the kinetic features and micromechanism of propagation of fatigue cracks in pseudoelastic nitinol alloy with shape-memory effect under the conditions of constant-amplitude cyclic loading with stress ratios R = 0.2 and 0.5. It is established that, independently of the parameter R, fatigue cracks grow by the quasicleavage mechanism, which is explained by the austenite-martensite deformation transformation at the crack tip. This also explains the fact that the maximal value of the stress intensity factor in a loading cycle (but not its range) is responsible for the kinetics of fracture observed as the stress ratio R changes.

引用

页码：461 / 465

页数：5

共 50 条

[31] Novel insight into the strain-life fatigue properties of pseudoelastic NiTi shape memory alloys
Sgambitterra, Emanuele
Magaro, Pietro
Niccoli, Fabrizio
Renzo, Danilo
Maletta, Carmine
SMART MATERIALS AND STRUCTURES, 2019, 28 (10)
[32] The upper bound of low cycle fatigue life of pseudoelastic polycrystalline NiTi shape memory alloys
Zhang, Yahui
Chai, Xinliang
Ju, Xiaofei
Zhu, Jihong
Moumni, Ziad
Zhang, Weihong
SMART MATERIALS AND STRUCTURES, 2022, 31 (10)
[33] Influence of High Fluence Nitrogen Ion Implantation on Pseudoelastic Behaviour of NiTi Shape Memory Alloy
Levintant-Zayonts, N.
Kucharski, S.
ACTA PHYSICA POLONICA A, 2011, 120 (01) : 79 - 82
[34] Modeling of finite deformation of pseudoelastic NiTi shape memory alloy considering various inelasticity mechanisms
Dhala, Satyabrata
Mishra, Sushil
Tewari, Asim
Alankar, Alankar
INTERNATIONAL JOURNAL OF PLASTICITY, 2019, 115 : 216 - 237
[35] Influence of stress ratio on functional fatigue of pseudoelastic NiTi alloy
Iasnii, Volodymyr
Yasniy, Petro
6TH INTERNATIONAL CONFERENCE FRACTURE MECHANICS OF MATERIALS AND STRUCTURAL INTEGRITY (FMSI 2019), 2019, 16 : 67 - 72
[36] Very high strain-rate response of a NiTi shape-memory alloy
Nemat-Nasser, S
Choi, JY
Guo, WG
Isaacs, JB
MECHANICS OF MATERIALS, 2005, 37 (2-3) : 287 - 298
[37] A FUNCTIONALLY GRADIENT NITI SHAPE-MEMORY ALLOY FABRICATED BY SELECTIVE LASER MELTING
Li, Kun
Zhan, Jianbin
Ma, Ruijin
Ren, Yingzhi
Lin, Jinxin
PROCEEDINGS OF ASME 2022 17TH INTERNATIONAL MANUFACTURING SCIENCE AND ENGINEERING CONFERENCE, MSEC2022, VOL 1, 2022,
[38] Synthesis and characterization of nanocrystalline NiTi shape-memory alloy by shock-compression
Xu, X
Thadhani, NN
FUNDAMENTAL ISSUES AND APPLICATIONS OF SHOCK-WAVE AND HIGH-STRAIN-RATE PHENOMENA, PROCEEDINGS, 2001, : 297 - 304
[39] Powder metallurgical fabrication and characterization of nanostructured porous NiTi shape-memory alloy
Sadrnezhaad, S. K.
Arami, H.
Keivan, H.
Khalifezadeh, R.
MATERIALS AND MANUFACTURING PROCESSES, 2006, 21 (08) : 727 - 735
[40] Formation of the Nanocrystalline Structure in an Equiatomic NiTi Shape-Memory Alloy by Thermomechanical Processing
Sharifi, E. Mohammad
Kermanpur, A.
Karimzadeh, F.
Esmaili, A.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2014, 23 (04) : 1408 - 1414

← 1 2 3 4 5 →