Pooja Forge Senior Metallurgist Interview Questions and Answers

Martensite formation can be achieved through rapid cooling of austenite.

• Martensite formation occurs when austenite is rapidly cooled below the martensite start temperature.

• The cooling rate must be fast enough to prevent the diffusion of carbon atoms, allowing them to become trapped in the crystal lattice.

• Quenching in water, oil, or air can be used to achieve the necessary cooling rate.

• Higher carbon content in the steel...read more

Carburizing is a cleaner process compared to carbonitriding.

• Carburizing involves introducing carbon into the surface of a metal to increase its hardness, while carbonitriding introduces both carbon and nitrogen.

• Carburizing typically requires fewer process steps and is more cost-effective.

• Carbonitriding can lead to the formation of more complex compounds, which may require additional post-treatment processes.

• Carburizing...read more