Abstract

The effect of wheel steel structural condition on mechanical properties with static and impact loading is studied. It is shown that steel with a lower bainite structure with low-temperature tempering has greater work for failure than steel with a martensitic structure. The superiority of a bainitic over a martensitic structure on toughness in impact tests is established. A difference is revealed in the brittle failure mechanism for martensitic and bainitic high-carbon steel.

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