Question

7. Name the constituents of the following
alloys:
(a) Duralumin
(b) German silver
(c) Stainless steel
(d) Bronze
(e) Brass​

Answer 1

Answer:

German silver is an alloy of co[[er, zinc and nickel. Its composition is copper, from 50% to 61.6%; zinc, from 19% to 17.2%; nickel, from 30% to 21.1%.

(b) Brass is an alloy of copper and zinc. Different types of brass have different proportions of zinc and copper.

(i) Alpha brasses : Cu > 65 % and Zn < 35 %

(ii) Alpha-beta brasses : Cu 55- 65 % and Zn 35-45 %

(iii) Beta brasses : Cu 50- 55 % and Zn 45-50 %

(iv) Gamma brasses: Cu 61- 67 % and Zn 33-39 %

(v) White brass : Cu < 50 % and Zn > 50 %

Answer 2

Answer:

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