Tempering is a process of heat treating, which is used to increase the toughness of iron-based alloys
28) The heat treatment process used for softening hardened steel is
Answer is:
Tempering
Explanation:
Related Material science MCQ with Answers
Answer is:
3.5 to 4.5 % copper, 1.2 to 1.7 % mangenese, 1.8 to 2.3 % nickel, 06% each of silicon, magnesium and iron and rest aluminum.
Explanation:
Y-alloy contains 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium
Answer is:
60 % copper and 40 % zinc
Explanation:
Muntz metal is also called as Yellow Metal, Muntz Metal consists of 60 percent copper and 40 percent zinc. Muntz metal is named after the English businessman George F. Muntz, who patented it in 1832. Muntz metal must be worked hot. Muntz metal is used to make machine parts that require resistance to corrosion.