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Engineering Fields - Mechanical Engineering - New Member Kenya - Member - New Member

Join Date: Sep 2008
Location: Eldoret, Kenya
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MATERIALS ENGINEERING

11/18/2009 5:46 PM

My study team is at odds with the answer to this question, particularly (b) and (c).

Input highly appreciated.

(a) What are the phases present and what are the compositions of the phases in an alloy of 90 wt% Silver in Copper at 780degC?

(b) Is it possible to liquefy this alloy without raising the temprature abpve 780degC simply by adding more silver to it? If so, how much silver would you have to add to 10Kg of alloy to make it 100% liquid?

(c) Is it possible to liquefy this alloy at 780degC by adding more copper to it? If so, how much copper would you have to add to 10Kg of alloy to make it 100% Liquid?

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Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: MATERIALS ENGINEERING

11/18/2009 5:55 PM

OK,

Tell us what the controversy is. Being at odds implies that you have come to a conclusion. What is it?

Or, do you just want us to answer the questions?

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Anonymous Poster
#2
In reply to #1

Re: MATERIALS ENGINEERING

11/18/2009 6:01 PM

Or are we doing your homework?

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Anonymous Poster
#3

Re: MATERIALS ENGINEERING

11/18/2009 8:52 PM

Choice 2 Guest at #2 is obviously right.

Study the diagram and conclude (draw the line at 780oC).

Then come back with the explanations and we will award marks.

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