Effect of Selective Laser Melting Parameters on Physicomechanical Properties of Ferromagnetic Shape Memory Ni36Al27Co37 Alloy

Alina K. Mazeeva; Artem Kim; Kirill A. Starikov; Aleksey I. Shamshurin; Anatoly A. Popovich

doi:10.4028/p-0q13gp

Paper Titles

Investigation of the Gradient Properties of Samples Obtained by Direct Laser Deposition from a Mixture of Ni/Ti Elemental Powders
p.3

Effect of Selective Laser Melting Parameters on Physicomechanical Properties of Ferromagnetic Shape Memory Ni₃₆Al₂₇Co₃₇ Alloy
p.11

Properties Investigation of Steel-TiC Composite Material Formed during Selective Laser Melting Process
p.19

Structure and Microhardness of Constructional Steel after Ultrasonic Impact Treatment at Negative Air Temperatures
p.29

Forming of Briquettes from Iron and Plastic Waste
p.35

Welding at Low Temperatures of Structural Steels
p.41

Surface Modification of Nickel Oxide (II) Thin Films Obtained by Gas-Phase Deposition
p.49

Influence of Crystallization Conditions on the As-Cast Structure of Fe-Mn-Si Alloy with a Shape Memory Effect
p.55

HomeKey Engineering MaterialsKey Engineering Materials Vol. 942Effect of Selective Laser Melting Parameters on...

Effect of Selective Laser Melting Parameters on Physicomechanical Properties of Ferromagnetic Shape Memory Ni₃₆Al₂₇Co₃₇ Alloy

Abstract:

In this work Ni₃₆Al₂₇Co₃₇ferromagnetic shape memory alloy was studied. Selective laser melting (SLM) was carried out at the modes providing the volumetric energy density (VED) of 70-200 J/mm³. It was shown that in order to obtain dense samples, VED should be at least 90 J/mm³ for this alloy. The maximum density was achieved at 150 J/mm³.With an increase in VED, the hardness nonlinearly decreases from 447 HV to 413 HV. The samples without visible defects showed a mean conventional tensile failure stress of 479 MPa and a residual deformation of about 0.04%, which confirms their brittleness when not heat-treated.Investigation into crystallographic structure of Ni₃₆Al₂₇Co₃₇ SLM-samples showed that the laser power, scanning speed and hatch distance effects should not be considered separately but in complex. It was found that the most promising approach to obtain anisotropy in this alloy is a simultaneous decrease in the hatch distance and an increase in the scanning speed. In this case, the crystallites aspect ratio achieves values of up to 12 that makes the alloy prospective to show high magnetically induced strain.

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Key Engineering Materials (Volume 942)

Pages:

11-17

DOI:

https://doi.org/10.4028/p-0q13gp

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Online since:

March 2023

Authors:

Alina K. Mazeeva*, Artem Kim, Kirill A. Starikov, Aleksey I. Shamshurin, Anatoly A. Popovich

Keywords:

4D Technology, Additive Manufacturing, Anisotropy, Ferromagnetic Smart Alloy, Selective Laser Melting

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