The stress induced martensitic transformation in superelastic NiTi alloy can be accompanied by a plastic deformation. In this work, NiTi wires were subjected to tensile displacement-controlled tests in the temperature range -90 degrees C to 190 degrees C and lattice defects created by the deformation were analysed by TEM. The unrecovered strain significantly increased and fatigue life decreased with increasing test temperature. The rate of the accumulation of unrecovered strain in the stabilized stage of tensile cycling was taken as an indicator of the accumulation of material damage. Fatigue life ranged from 900 cycles at 80 degrees C to 4700 cycles at 15 degrees C.
机构:
Department of Mechanical Engineering, Mississippi State University, Mississippi State, 39762, MS
Center for Advanced Vehicular Systems (CAVS), Mississippi State University, Mississippi State, 39762, MSDepartment of Mechanical Engineering, Mississippi State University, Mississippi State, 39762, MS
Mahtabi M.J.
Shamsaei N.
论文数: 0引用数: 0
h-index: 0
机构:
Laboratory for Fatigue & Additive Manufacturing Excellence (FAME), Department of Mechanical Engineering, Auburn University, Auburn, 36849, ALDepartment of Mechanical Engineering, Mississippi State University, Mississippi State, 39762, MS
机构:
Univ Tehran, Coll Engn, Sch Met & Mat Engn, Complex Lab Hot Deformat & Thermomech Proc High P, Tehran, IranUniv Tehran, Coll Engn, Sch Met & Mat Engn, Complex Lab Hot Deformat & Thermomech Proc High P, Tehran, Iran
Safdel, A.
Zarei-Hanzaki, A.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Tehran, Coll Engn, Sch Met & Mat Engn, Complex Lab Hot Deformat & Thermomech Proc High P, Tehran, IranUniv Tehran, Coll Engn, Sch Met & Mat Engn, Complex Lab Hot Deformat & Thermomech Proc High P, Tehran, Iran
Zarei-Hanzaki, A.
Shamsolhodaei, A.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Tehran, Coll Engn, Sch Met & Mat Engn, Complex Lab Hot Deformat & Thermomech Proc High P, Tehran, IranUniv Tehran, Coll Engn, Sch Met & Mat Engn, Complex Lab Hot Deformat & Thermomech Proc High P, Tehran, Iran
Shamsolhodaei, A.
Krooss, Philipp
论文数: 0引用数: 0
h-index: 0
机构:
Inst Mat Engn Metall Mat, D-34125 Kassel, GermanyUniv Tehran, Coll Engn, Sch Met & Mat Engn, Complex Lab Hot Deformat & Thermomech Proc High P, Tehran, Iran
Krooss, Philipp
论文数: 引用数:
h-index:
机构:
Niendorf, Thomas
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,
2017,
684
: 303
-
311