Quick HT Quiz #20
What causes formation of Non Martensitic Transformation Products (NMTP) on the surface of carburised parts?
a) Decarburisation of surface
b) Oxidation of alloying elements on the surface
c) High Carbon Potential (CP > 1.1%)
d) Inadequate diffusion time
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Answer: Option b) Oxidation of alloying elements on the surface
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