Conditions favoring carburization include a high gas phase carbon activity and _______ oxygen potential.
A) Low
B) High
C) Negative
D) Positive

Question

Quizplus · Accepted Answer

Carburization involves adding carbon to a material, typically through a high-temperature gas-phase reaction. To favor carburization, the gas phase carbon activity should be high, meaning there is an abundance of carbon available to react. However, the oxygen potential should be low, as oxygen can compete with carbon for bonding sites and impede carburization. Therefore, a low oxygen potential is preferred to create conditions that favor carburization.

Conditions Favoring Carburization Include a High Gas Phase Carbon Activity