Multiple plastic deformation mechanisms of NiTi shape memory alloy based on local canning compression at various temperatures

2016 ◽  
Vol 70 ◽  
pp. 45-52 ◽  
Author(s):  
Li Hu ◽  
Shuyong Jiang ◽  
Yanqiu Zhang ◽  
Yanan Zhao ◽  
Siwei Liu ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Mechanisms ◽  
Niti Shape Memory Alloy

scholarly journals Investigation on Deformation Mechanisms of NiTi Shape Memory Alloy Tube under Radial Loading

Metals ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 268 ◽  
Author(s):  
Shuyong Jiang ◽  
Junbo Yu ◽  
Li Hu ◽  
Yanqiu Zhang
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Mechanisms ◽  
Niti Shape Memory Alloy ◽  
Alloy Tube ◽  
Radial Loading

Crystallization of amorphous NiTi shape memory alloy fabricated by severe plastic deformation

2014 ◽  
Vol 24 (6) ◽  
pp. 1758-1765 ◽  
Author(s):  
Shu-yong JIANG ◽  
Ming TANG ◽  
Ya-nan ZHAO ◽  
Li HU ◽  
Yan-qiu ZHANG ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Shape Memory Alloy ◽  
Severe Plastic Deformation ◽  
Shape Memory ◽  
Niti Shape Memory Alloy

Nanotexture Studies of NiTi Shape Memory Alloy after Severe Plastic Deformation with the Use of TEM

2012 ◽  
Vol 186 ◽  
pp. 90-93 ◽  
Author(s):  
Danuta Stróż ◽  
Jakub Palka ◽  
Zdzisław Lekston
Keyword(s):  
Plastic Deformation ◽  
Shape Memory Alloy ◽  
Severe Plastic Deformation ◽  
Shape Memory ◽  
Niti Shape Memory Alloy ◽  
Specific Method ◽  
Transverse Movement ◽  
Alloy Properties ◽  
Maximal Strain

In this paper a specific method of severe plastic deformation (SPD) applied to the NiTi shape memory alloy and the obtained structure and the alloy properties are presented. Cold rolling combined with transverse movement of the rolls was the method. The maximal strain obtained was εc ≈ 10.20 for the relatively large specimens. Then the alloy was annealed in order to obtain samples of a given grain size. In the paper the structure of the alloy annealed at 350°C was studied with the use of TEM equipped with Nanomegas attachment ASTAR allowing determination of the orientation of grains in nanoareas.

Effect of Hot-Forging on NiTi Shape Memory Alloy Fibers Reinforced Mg Alloy Composite

2007 ◽  
Vol 534-536 ◽  
pp. 873-876
Author(s):  
Qi Guo ◽  
Gang Li ◽  
Jian Ren Tang ◽  
Biao Yan
Keyword(s):  
Plastic Deformation ◽  
Electron Microscope ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Hot Forging ◽  
Optical Microscope ◽  
Mg Alloy ◽  
Niti Shape Memory Alloy ◽  
Alloy Matrix ◽  
The Matrix

The composite used in this paper was prepared by hot-pressing ball-milled Mg alloy powders, in which NiTi shape memory alloy fibers in a row were sandwiched. The microstructure were examined by an optical microscope, scanning electron microscope, X-ray diffraction, and transmission electron microscope to measure its microhardness and density. It is shown that the composite consisted of a homogenous matrix with uniformly distributed NiTi shape memory alloy fibers, where recrystallization took place in the Mg alloy matrix that was subjected to plastic deformation. It is known that plastic deformation is beneficial to the refinement of the grains, that is an adequate bonding forms between the matrix and fibers, the density of the composite increases after the hot-forging; its tensile strength increases significantly because of the grain refinement; the hot-forging process improves the properties of the NiTi shape memory alloy fibers reinforced Mg matrix composite.

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