Magnetoelastic Demagnetization of Steel under Cyclic Loading

Influence of Tempering Temperatures on Magnetoelastic Relaxation Behavior of 30KH13 Steel

“…The hypothesis, which is presented in the work [8,9] and focuses on predicting fatigue characteristics of ferromagnetic materials via an analysis of their magnetoelastic relaxation parameters, requires less time than conventional fatigue tests. Unfortunately, owing to the lack of data concerning the fatigue limit of 30KH13 (30X13) steel at various tempering temperatures, we High Technology: Research and Applications 2017 are unable to correlate observed specific mechanical loads with the steel fatigue limit.…”

“…The work [8,9] analyzes the influence of the load amplitude on approximation coefficients with the power function. The work also emphasizes that the product ∆ℎ 𝜎𝜎 • 𝛼𝛼 𝜎𝜎 and the value 𝛿𝛿ℎ = ∆ℎ 𝜎𝜎 𝑚𝑚𝑚𝑚𝑚𝑚 /∆ℎ 𝜎𝜎 𝑚𝑚𝑚𝑚𝑚𝑚 reflect, to some extent, mechanical load values specific for the material.…”

Inversion of the piezomagnetic effect of the residual magnetized state of steel 30Kh13 during low-cycle tests

“…Therefore, they are widely used for non-destructive testing [1,2]. Recently, there has been increasing interest in the development of magnetic non-destructive testing methods for the fatigue characteristics of steels [3,4], in particular the magnetoelastic method [5,6].…”

“…The present work is devoted to the investigation of the magnetoelastic phenomena under low cycle stresses and the search for possibilities of using the magnetoelastic effect to determine the fatigue properties and the endurance life of steels [5]. 30Kh13 steel (analogue of AISI 420) was used as the material for the research.…”

“…The experimental installation and the experiment technique are described in [5]. The first series of tests consisted of magnetization to saturation, cyclic tensile loading with an amplitude of about σ A = 150 MPa and synchronous recording of magnetograms.…”