Lattice changes in shape memory CuZnAl alloys on aging at room temperature

The aging behavior of CuZnAl martensites (Cu-21.62 wt.% Zn-5.68 wt.% Al and Cu-24.98 wt.% Zn-4.43 wt.% Al) at about 297 K was studied by analyzing diffraction line profiles obtained by X-ray diffractometry. For the alloys, the change of the lattice parameters and the tetragonality associated with th...

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Bibliographic Details
Published in:Turkish journal of physics 2001, Vol.25 (5), p.467-472
Main Authors: ÇAKMAK, Seyfettin, ARTUNÇ, Ekrem, ADIGÜZEL, Osman, KAYALI, Nejdet
Format: Article
Language:English
Subjects:
aging[phenomenon]
Biçim bellekli alaşım
crystallography
Cu-Zn-Al alaşımı
Cu-Zn-Al alloy
CuZnAl
Kristalbilim
Latis dinamiği
Latis enerjisi
Lattice change
lattice dynamics
lattice energy
Martensit dönüşümü
martensitic transformation
shape memory alloy
Structure of Condensed Matter and Radiation Physics
X-ışını kırınımı
X-ray diffraction
Yaşlanma[fenomen]
Yoğunlaşmış Madde Yapısı ve Radyasyon Fiziği
Örgü değişimi
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Summary:The aging behavior of CuZnAl martensites (Cu-21.62 wt.% Zn-5.68 wt.% Al and Cu-24.98 wt.% Zn-4.43 wt.% Al) at about 297 K was studied by analyzing diffraction line profiles obtained by X-ray diffractometry. For the alloys, the change of the lattice parameters and the tetragonality associated with the aging time at room temperature were investigated. The habit planes versus the aging time at room temperature were calculated using the De Vos-Aernoundt-Delaey model, based on the crystallographic theory of Wechsler-Lieberman-Read(WLR), and from the $DO_3\rightarrow 18R$ martensite transformation theory.
ISSN:1300-0101