Electron microscopy study of 2H and 18R martensites in Cu-11.92 wt% A1-3.78 wt% Ni shape memory alloy
Yükleniyor...
Tarih
2006
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The microstructures and the crystal structures of the beta(1)' and gamma(1)' martensite phases in Cu-11.92 wt% Al-3.78 wt% Ni shape memory alloy were studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Samples subjected to two different heat treatments were analysed. In the alloy, two kinds of martensite phases were observed depending on heat treatment, and it was seen that the annealing time is effective on forming of these phases. The change between the 18R and 2H stacking sequences was investigated by diffraction technique. Further experiments revealed that the beta(1)' martensite structure is actually of the M18R type (modified 18R) monoclinic one with its beta angle very close to 90 degrees. (c) 2005 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
CuAlNi alloy, Martensitic transformation, heat treatment, 18R martensite, 2H martensite
Kaynak
Journal Of Alloys And Compounds
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
417
Sayı
1-2
Künye
closedAccess
