Question

Chromizing is carried out at a temperature of __________

(a) 400-600 F

(b) 800-1200 F

(c) 1650-2000 F

(d) 2250-2750 F

I got this question in an interview for internship.

This interesting question is from Mechanical Tests on Metals, Protection Against Wear topic in portion Wear of Metals, Mechanical Properties and Testing of Engineering Material & Metallurgy

Answer 1

The correct answer is (c) 1650-2000 F

The best I can explain: The chromizing process employs the principle of transfer of chromium through the gas phase at elevated temperatures. This temperature ranges between 1650 and 2000 F. This process is used on drop-forging dies, tools, hydraulic rams, pistons, and pump shafts.