The effects of pre-strain, recovery temperature, and bending deformation on shape memory effect in an Fe-Mn-Si-Cr-Ni alloy
Yükleniyor...
Tarih
2009
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, effects of pre-strain, recovery temperature, and number of bending test cycles on the microstructure and shape memory behavior of Fe-12.5%Mn-5.5%Si-9%Cr-3.5%Ni alloy have been investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM). X-Ray diffract-ion method, and bending test. Experiments show that the shape memory effect of the alloy can be enhanced by convenient recovery temperature and pre-strain rate. The shape recovery ratio increases with increasing pre-strain and recovery temperature, while it decreases with an increase in the number of bending test cycles. The changes in the shape memory are attributed to the variation of amount of epsilon martensite and crystal defects. The amount of epsilon martensite increases with increasing the pre-stain ratio. Crystal defects decrease with an increase in the recovery temperature, while they increase with increasing the number of the bending test cycles. (C) 2008 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Fe-Mn-Si-Cr-Ni alloys, Martensitic transformation, Shape memory effect, Recovery temperature, Pre-strain
Kaynak
Journal Of Alloys And Compounds
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
475
Sayı
1-2
Künye
closedAccess
