Effect of Carbon Addition on Recovery Behavior of Trained FeMnSi Based Shape Memory Alloys

2014 ◽  
Vol 17 (2) ◽  
pp. 205-210 ◽  
Author(s):  
Huabei Peng ◽  
Jie Chen ◽  
Shanling Wang ◽  
Yuhua Wen
1992 ◽  
Vol 105-110 ◽  
pp. 1317-1320
Author(s):  
Tian Min Wang ◽  
Bao Yi Wang ◽  
S.Y. Wang ◽  
Y.Y. Dong ◽  
Guo Zu Da

1992 ◽  
Vol 129 (2) ◽  
pp. K71-K75 ◽  
Author(s):  
T. M. Wang ◽  
B. Y. Wang ◽  
S. H. Zhang ◽  
Y. Y. Dong ◽  
G. Z. Da

2020 ◽  
Vol 10 (10) ◽  
pp. 3441 ◽  
Author(s):  
Ki-Nam Hong ◽  
Yeong-Mo Yeon ◽  
Won-Bo Shim ◽  
Do-Hyung Kim

This paper presents the experimental results of an evaluation of the recovery behavior of Fe-based shape memory alloys (Fe-SMAs) under different restraints. For the study, three types of Fe-SMA (FSMA-A, FSMA-B, FSMA-C) were produced. As a result of the direct tensile test, the yield strength of the FSMA-A specimen was nearly 34% higher than the strength of FSMA-B and FSMA-C. Under free restraint, the recovery strains are 0.00956, 0.01445, and 0.01977 for FSMA-A, FSMA-B and FSMA-C specimens, respectively, after activation when the pre-strain is 0.04, and the heating temperature 200 °C. Under rigid restraint, the final recovery stresses are 518, 391 and 401 MPa for FSMA-A, FSMA-B, FSMA-C specimens after activation when a pre-strain of 0.04 and heating temperature 200 °C. Additionally, under the rigid restraint, the effect of pre-strain on the final recovery stress was insignificant, whereas the final recovery stress increased as the heating temperature increased. When Fe-SMA was constrained during cooling, the recovery stress is 50% lower than under rigid restraint. Hence, in order to develop a large recovery stress, Fe-SMA must be constrained during heating. In addition, a method for calculating the effective confining stress of the Fe-SMA coupler for pipe joining was proposed based on the experimental results.


1995 ◽  
Vol 05 (C8) ◽  
pp. C8-973-C8-978
Author(s):  
M. Jurado ◽  
Ll. Mañosa ◽  
A. González-Comas ◽  
C. Stassis ◽  
A. Planes

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