Heat treatment of steel with induction heating

Shepelyakovskii, K. Z.

doi:10.1007/bf00670569

Cited by 1 publication

(1 citation statement)

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“…High frequency induction hardening has long been used to harden the surface layer and to improve the fatigue property of medium carbon steels for automotive components such as crankshafts. 1,2 The alternating currents establish rapidly alternating magnetic field, which in turn induces an electric potential and consequently causes the flow of current in the part to be heated. The depth of current penetration depends on the alternating current frequency and the shallow penetration depth is formed during high frequency induction heating.…”

Section: Introductionmentioning

confidence: 99%

Austenite grain coarsening of V-microalloyed medium carbon steel during high frequency induction heating: Monte Carlo simulation study

Kim

Park

2013

Materials Science and Technology

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The austenite grain coarsening behaviour of V-microalloyed (MA) medium carbon steel during induction heating at high frequency is studied, by varying induction input power, and using Gleeble simulating the ultrafast heating rates and Monte Carlo simulation. A significant coarsening of austenite grains occurs in the subsurface layers despite ultrafast heating rates. A distinctive feature is, unlike plain medium carbon steel, an abrupt grain coarsening below a critical depth from the surface. Gleeble experiments suggest that an abrupt grain coarsening is due to dissolution of VC particles. The Monte Carlo simulations, in a simplified temperature and particle fraction profiles, further show that the abrupt grain coarsening in V-MA steel during induction heating can occur not only by the particle pinning but also by the thermal pinning. The activation energy for grain growth is shown to be important in determining the relative contribution to the abrupt grain coarsening. The particle pinning plays an important role in the abrupt grain coarsening because the V-MA medium carbon steel, unlike Cr–Mo steel, shows moderate activation energy for grain growth.

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Section: Introductionmentioning

confidence: 99%