Diffusion hardening

Induction Heat Treatment of Gears and Gear-Like Components

Published in Stephen P. Radzevich, Advances in Gear Design and Manufacture, 2019

As sated earlier, thermo-chemical diffusion hardening processes, such as carburizing and nitriding, modify the actual chemical composition of the steel. The major difference between these processes and induction hardening is that the latter does not alter the chemical composition of the parent material; instead it modifies its crystal structure. Therefore, since induction hardening does not change the chemical composition of steel (rear cases of forming surface decarb are outside of present discussion), the steel grade must have sufficient carbon and alloy content and be capable of achieving a required surface hardness, case depth, and core strength to accommodate needed engineering properties (for example, sufficient strength, wear, and fatigue properties, to name just a few).

Kinetics and products of interaction of zinc-containing gallium pastes–solders

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Journal Information

Published in Welding International, 2022

A.A. Mikheev, V.I. Temnykh, V. S. Kazakov, E.V. Temnykh, A.E. Mityaev,, G.M. Zeer, A.K. Abkaryan

The interaction of powder and other dispersed materials with gallium melts is the basis of low-temperature soldering of dissimilar materials. The low-melting diffusion-hardening gallium pastes–solders, characterized by unique properties 1–4, also have a number of important shortcomings: high price, the long solidification process, low impact toughness, restricted period during which the technological properties after preparation remain constant, and also a number of other restrictions in applications.

Diffusion hardening

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Induction Heat Treatment of Gears and Gear-Like Components

Kinetics and products of interaction of zinc-containing gallium pastes–solders