Effect of the application of an external magnetic field during the process of fusing welding in stainless steel duplex 2205 in the resistance to cracking by corrosion fatigue

In recent years, the technology of creating metal materials by the Cold Metal Transfer method has been actively developed, which helps to obtain products of various shapes and sizes. The hardness of 9CrMoV-N low-alloy steel obtained by the Cold Metal Transfer method in the field of a permanent magnet was investigated. The magnetic field induction did not change in the entire series of tests and was equal to 200 mT. As a result of the studies, it was found that the hardness of the obtained sample is more than 2 times higher than the hardness of the starting material and is 590.97±14.87 HV in comparison with the hardness of the wire before surfacing 265 HV. It was found that the distribution of hardness over the volume of the material is heterogeneous and depends on the place of testing. It was suggested that changes in hardness are associated with the structural features of the deposited material.

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Hardness of low-alloy steel obtained by cold metal transfer in the magnetic field

Shlyarov

Zagulyaev

Chen

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Increasing the Fatigue Life of VT1-0 Titanium under the Influence of a Constant Magnetic Field

Aksenova,

Shlyarov,

Zagulyaev

et al. 2024

Tech. Phys. Lett.

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Influence of Constant Magnetic Field upon Fatigue Life of Commercially Pure Titanium

et al. 2022

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Cyclic tests of the multicycle fatigue of commercially pure titanium were performed under normal conditions (without a magnetic field) and after exposure to a constant magnetic field of varying density (B = 0.3, 0.4, 0.5 T). It was shown that the application of the constant magnetic field of varying density led to a fold increase in the average number of cycles to destruction of the VT1-0 titanium samples by 64, 123, and 163%, respectively. Scanning electron microscopy revealed that the magnetic field led to a 1.45-fold increase in the critical length of the fracture (the width of the fatigue crack growth zone) and a 1.6-fold decrease in the distance between the fatigue striations in the accelerated crack growth zone of the destroyed titanium samples. It was established that a subgrain (fragmented) structure formed in the area of the fatigue growth of the fracture of the titanium samples. The size of the subgrains corresponded to the spaces between the fatigue striations, which had an inhibitory influence on the microcrack propagation. Collectively, the revealed facts are indicative of a higher material resistance to fatigue fracture propagation and increased operation resources under the fatigue tests in the magnetic field, which correlates with the data on the growth of the average number of cycles to fracture of the VT1-0 titanium samples.

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Effect of the application of an external magnetic field during the process of fusing welding in stainless steel duplex 2205 in the resistance to cracking by corrosion fatigue

Cited by 3 publications

References 10 publications

Hardness of low-alloy steel obtained by cold metal transfer in the magnetic field

Hardness of low-alloy steel obtained by cold metal transfer in the magnetic field

Increasing the Fatigue Life of VT1-0 Titanium under the Influence of a Constant Magnetic Field

Influence of Constant Magnetic Field upon Fatigue Life of Commercially Pure Titanium

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