Experimental study on performance of Ti-Ni shape memory alloy composite suspension damping system

Fan, Yujiang; Ding, Jiaxiong; Liu, Kai; Huang, Huanhuan; Xiong, Ergang

doi:10.1016/j.conbuildmat.2022.128377

Cited by 4 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…First, as-cast Co87Zr13, Ni52Fe20Ga23Al5 and FePd30Mn3 were severe plastic deformed in thin disks. Previously, we have presented extensively the severe plastic deformation of those hard-to-deform magnetic shape memory alloys [ 19 , 20 , 21 ]. The aim of the present study was to investigate in detail the assembling process of various magnetic composites.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic Shape Memory Nanocomposites Assembled with High Speed High Pressure Torsion

Gurau,

Tolea,

Cimpoesu

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

When a severe plastic deformation (SPD) process is performed at high temperatures, it becomes more versatile. Designed originally for the bulk nanoconstruction of hard-to-deform alloys, high-speed high-pressure torsion (HSHPT) is an SPD method used in this research for assembling multiple layers of shape memory nanocomposites. Three hard-to-deform magnetic alloys in the cast state were used. Soft magnetic shape memory alloys, NiFeGa and FePdMn, and a potentially hard magnetic alloy, CoZr, were assembled in various composites. Both grain refinement and strong layer bonding were achieved in ZrCo/FePdMn and ZrCo/NiFeGa composites in seconds. The very short SPD time is specific to HSHPT because of the intense friction that occurs under high pressures, which generates huge amounts of heat. After SPD, the temperature rises in bulk material like a pulse, being dissipated mostly through heat conduction. The SPD parameters were carefully controlled with an advanced automation system using a programmable logic controller. Nevertheless, the major drawbacks of high-pressure torsion were overcome, and large SPD discs were obtained. Various investigation techniques (optical microscopy, scanning electron microscopy, energy dispersive spectroscopy and atomic force microscopy) show well-defined interfaces as well as a fine and ultrafine structure.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The study reported improvements in the structural, magnetic and mechanical properties after HSHPT. New properties could be created in composites which combine these severely plastic-deformed alloys in order to achieve wider functionality [ 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%