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Alex787 [66]
2 years ago
9

A 1.5-kg specimen of a 90 wt% Pb-10 wt% Sn alloy (Animated Figure 9.8) is heated to 250°C; at this temperature it is entirely an

α-phase solid solution. The alloy is to be melted to the extent that 50% of the specimen is liquid, the remainder being the α phase. This may be accomplished either by heating the alloy or changing its composition while holding the temperature constant.
Engineering
1 answer:
Alex17521 [72]2 years ago
6 0

Answer:

A. By hit and trial method 280 C

Explanation:

ion know B sorry

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a) A 10-mm-diameter Brinell hardness indenter produced an indentation 2.50 mm in diameter in a steel alloy when a load of 1000 k
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b) The diameter of the indentation is obtained by clearing the corresponding variable in the Brinell formula:

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