The interpretation of cyclic creep deformation mechanism of copper in terms of the anelastic recovery

1985 ◽  
Vol 20 (4) ◽  
pp. 1357-1364 ◽  
Author(s):  
Keun Chan Jin ◽  
Soo Woo Nam
Keyword(s):  
Creep Deformation ◽  
Deformation Mechanism ◽  
Cyclic Creep

Microstructures and Creep of AM50-Sb-Gd Alloys

2005 ◽  
Vol 488-489 ◽  
pp. 749-752 ◽  
Author(s):  
Su Gui Tian ◽  
Keun Yong Sohn ◽  
Hyun Gap Cho ◽  
Kyung Hyun Kim
Keyword(s):  
Activation Energy ◽  
Creep Rate ◽  
Stress Exponent ◽  
Creep Behavior ◽  
Creep Deformation ◽  
Deformation Mechanism ◽  
Creep Resistance ◽  
Fine Particles ◽  
Dislocation Climb ◽  
The Matrix

Creep behavior of AM50-0.4% Sb-0.9%Gd alloy has been studied at temperatures ranging from 150 to 200°C and at stresses ranging from 40 to 90 MPa. Results show that the creep rate of AM50-0.4%Sb-0.9%Gd alloy was mainly controlled by dislocation climb at low stresses under 50 MPa. The activation energy for the creep was 131.2 ± 10 kJ/mol and the stress exponent was in the range from 4 to 9 depending on the applied stress. More than one deformation-mechanism were involved during the creep of this alloy. Microstructures of the alloy consist of a–Mg matrix and fine particles, distinguished as Mg17Al12, Sb2Mg3, and Mg2Gd or Al7GdMn5 that were homogeneously distributed in the matrix of the alloy, which effectively reduced the movement of dislocations, enhancing the creep resistance. Many dislocations were identified to be present on non-basal planes after creep deformation.

scholarly journals Creep Deformation Mechanism of P/M Al-8 mass%Fe Alloy

1992 ◽  
Vol 56 (4) ◽  
pp. 390-398 ◽  
Author(s):  
Fuyuki Yoshida ◽  
Norio Matsuda ◽  
Keisuke Matsuura
Keyword(s):  
Creep Deformation ◽  
Deformation Mechanism

Cyclic Creep Deformation Characteristics Of Single Crystal Of Nickle Basesuperalloy CMSX 3

1996 ◽  
pp. 663-668
Author(s):  
J. Zrník ◽  
Z. G. Wang ◽  
Y. Yu ◽  
J. A. Wang ◽  
M. Žitňanský ◽  
...  
Keyword(s):  
Single Crystal ◽  
Creep Deformation ◽  
Cyclic Creep ◽  
Deformation Characteristics

A Method for Estimating Creep Deformation of Structures Subjected to Cyclic Loading

1973 ◽  
Vol 40 (4) ◽  
pp. 928-934 ◽  
Author(s):  
J. J. Williams ◽  
F. A. Leckie
Keyword(s):  
Cyclic Loading ◽  
Creep Strain ◽  
Effective Stress ◽  
Creep Test ◽  
Creep Deformation ◽  
Cyclic Creep ◽  
Uniaxial Stress ◽  
Time Varying ◽  
Proportional Loading

A method is proposed for estimating structural creep deformation due to histories of cyclic proportional loading. The method applies to structures composed of materials whose creep strain due to constant uniaxial stress is given by an equation of the form ε(t)/ε0={σ/σ0}n{t/t0}m Knowledge of the form of the creep law for time-varying stress is not required, as use is made of an effective stress obtained from a single cyclic creep test.

Sign in / Sign up

Export Citation Format

Share Document