THE EFFECT OF AGEING ON THE FATIGUE BEHAVIOUR OF Al-2.3 wt% Li SINGLE CRYSTALS

1987 ◽  
Vol 48 (C3) ◽  
pp. C3-745-C3-751 ◽  
Author(s):  
J. SCHNEIDER ◽  
H.-J. GUDLADT ◽  
V. GEROLD
Keyword(s):  
Single Crystals ◽  
Fatigue Behaviour

Fatigue behaviour of single crystals of a Cu-22%Zn alloy

1992 ◽  
Vol 158 (2) ◽  
pp. 177-183 ◽  
Author(s):  
P. Lukáš ◽  
L. Kunz ◽  
J. Krejčí
Keyword(s):  
Single Crystals ◽  
Fatigue Behaviour ◽  
Zn Alloy

Orthorhombic lattice deformation of CuAlBe shape-memory single crystals under cyclic strain

2001 ◽  
Vol 34 (6) ◽  
pp. 722-729 ◽  
Author(s):  
A. Tidu ◽  
A. Eberhardt ◽  
B. Bolle ◽  
F. Moreau ◽  
J.-J. Heizmann
Keyword(s):  
Shape Memory ◽  
Single Crystals ◽  
Fatigue Test ◽  
Lattice Distortion ◽  
Cyclic Strain ◽  
Fatigue Behaviour ◽  
X Ray Diffraction ◽  
Strong Decrease ◽  
X Ray ◽  
Ray Methods

X-ray diffraction experiments were carried out to prove that X-ray methods can be used to assess strain-induced fatigue in CuAlBe shape-memory alloys. The pseudoelastic fatigue behaviour of CuAlBe single crystals presents a strong decrease of the critical stress of the martensitic transformation. During the fatigue test, the austenitic lattice exhibits a lattice distortion. This lattice distortion evolves during the fatigue test: the austenitic cubic lattice (β1) tends to transform gradually towards an orthorhombic one. Various hypotheses concerning this lattice distortion are proposed.

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